Please consider a short video about your planned satellite experiment - although most of us would not be able to replicate your experiment, I think we all come here to learn and expand our knowledge. Thanks for the videos Andreas!
"Doctor," says the man excitedly and dramatically holds up his heavily bandaged hands. "Will I be able to play the piano when these bandages come off?" "I don't see why not," replies the doctor. "That's funny," says the man. "I wasn't able to play it before."
Requested this video in comments on Andreas last video about sensors and what happened? Andreas deliver days later. This was more than I ever could hope for! Thank you so much Andreas for delivering another brilliant starting point for my projects.
I was kind of shocked when reading the title of your video. Thanks to your LORAWAN videos you hooked me up, and I am into this technology now for...wait: 2 days. Imagine my face when I thought "is it over, do we have to use 2.4 GHz now?". Glad it turned out different. Cheers, stay safe, best regards from Germany
At first I thought you had built a robotic finger, but then heard the news of the accident :-( Brilliant video Andreas, thank you for sharing but a mere snippet of your huge knowledge base :-)
Note: to make an arduino sleep longer, just put the sleep call in a loop. works great in my years of doing so. I.e. you want it to sleep for approximately 5 minutes, =300sec so loop 50 times on the sleep function at 8s each. arduino clock isn't accurate at all, but for sensors reading ever X minutes, its close enough.
Well done, Andreas. The SX128X devices do work rather well, and although they dont have the extreme long distance of UHF LoRa, 2.4Ghz is pretty much a worldwide allocation with a very wide band and no duty cycle limits so there is the possibility of moving quite large amounts of data around. The PCBs shown in the video, with the LoRa devices on, are good for experimenting, they are breadboard friendly and you can get them from the website. You will get better performance using the modules that can take an SMA antenna.
I definitively like SMA connectors. The U.FL are too small for me. But I started this project last year and got those boards without the SMA connector.
Tack care of your hand and nice find of SX1280. I will definitely try to utilize it my upcoming research and cite your contribution Thanks as always ✨👌✌
Best wishes my friend ... I have a few christmas tree light project ideas, and have enjoyed learning bits and pieces from you, ( mainly i like your 'kitchy' style !
It is now ok and I can use my bicycle again... So far I was only in Croatia (along the Danube River). But you never know. Maybe I will once come to your country!
I'm experimenting with sx1280 for a work project and I am very happy with the results. I am getting around 10% packet error rate at 180meters without line of sight in a very urban environment. I'm using the integrated pcb antenna, SF12 , BW 1600 and 4/5 CR. 10% might seem pretty bad, but it's not important for my application.
Thanks for the video. Sorry about the finger and the crash. Three years ago I crashed into a stationary post on a trail at full speed. I went over the handlebars and wrecked my 1978 Schwinn Super Le Tour (old friend of mine). I'm your age - recovery was tough and incomplete. The pavement seems to get harder every year. But all-in-all I think I was lucky. Best of luck to you in your recovery.
Sorry to hear that. Yes, we do not ger younger and things start to get more difficult. On the other hand, age has also a lot of advantages. When it happened, I knew, I cannot change it anymore and was quite calm. Maybe different than 30 years ago... I have a brand-new bike, but it seems not hurt too much. Just the front brake needs a replacement.
Habe auf Grund von deiner gezeigten Umgebung herausgefunden wo du Wohnst. Nett zu wissen, das man einen Tech TH-camr in der Nähe hat. Finde deine Videos echt nice. MFg ein Elektriker aus Bubendorf :D
It's always bad when you hurt the very finger you use to push buttons with. It was an interesting video. I'm not sure I can see any applications for using the 2.4GHZ band with LoRa, but it's still interesting. I see the possibility for too much interference between devices. You can probably solder with either hand as I can. I learned to use either hand back in the 80's building stuff all night on the kitchen table. I'm sure you've been there too. I hope you have a great night Andreas.
I think one of the motivations for developing 2.4 GHz modules was the absence of duty-cycle regulations in that band. Maybe it can be useful for some projects which need to communicate continuously.
Get well ASAP! Sorry for your accident, but the Czech people have a saying: With sports to PERMANENT DISABILITY or WORSE! When I was young, I build bicycles and made them custom to the user.... BUT I had several close encounters .... just like you, so I promoted to motorcycles and that was even worse! I had a very bad accident so that was it for 2 wheel anything! Cars are much safer and I can roll down the windows, like today, it is almost 20C and sunny day! I hope we are done with snow - like last week! Anyway, great work on your radio projects! Thanks for your video again Andreas!
The weather is also nice here. But for the moment I cannot use my 2 wheels, also not the one with an engine. We will see. At least the pain is smaller now and I can sleep better...
@@AndreasSpiess Hope to heal yourself soon! The constant pain is tiresome and many people after something is "busted", get more pain with changing weather! I have severe Fibromyalgia, and I was buried 3x in a coal mine when I was 20-22 years old (young!), so the weather changes keep reminding me every day my young life's troubles.... But you are more active so I expect that you will recover sooner and I hope that the weather changes aren't gonna tease you! You need to concentrate on our education! ha ha ha Thanks again!
good healing, it really could have been much worse, but a little luck sometimes it takes! Interssante that video on communication with the geostationary satellite. I stay tuned!
Thanks for the video. One note about those SX1280 modules. It seems like by default they fitted with a capacitor connecting the PCB trace antenna and to use u.FL connector the capacitor has to be moved to the proper position. In your video, it looks like you are using just the PCB antenna. So maybe that was cause it did not work in the 5 km range test. Hope I could save some head-scratching to someone. :)
You are right. Usually, it is a 0 ohms resistor instead of a bridge because it is easier for their pick-and-place machines. I checked the modules I used for the tests, and both have a connection to the connector. But it was not easy to change the connection because of the reduced space...
Big project = more videos :-) Being an Italian ham, but not a prosciutto :-D , I would really like to see your approach to this new adventure. Thanks again for all your very interesting and educative video.
Another great video Andreas but please please please make a video on the QO-100 build. It'll be great for the hobby and we'd all love to see it. Thanks and 73's SA6DAZ
Maybe. I do not want that this channel becomes a HAM channel. It should be open to everyone. Sometimes I try to encurrage a few of us to take teh examen...
I recently purchased two Arduino MKR WAN 1300 and when tinkering with it I did discover that it's possible to configure also for non-ISM bands, even down to VHF frequencies and with narrow bandwidths as well. So I did set it up on 144.800 MHz (HAM radio APRS frequency, so no major interference for my short test) and 12.5kHz bandwidth and then I did check with the Yaesu 857D I have (not very scientific, but for a crude check at least) and did see that it did actually work there. I haven't tested any range or output power so I can't tell if it's actually useful for any distance beyond a few decimeters. But from the perspective of shared knowledge I think that this might be interesting. At least one idea I have is to see if this device could be used to build a beacon for VHF and UHF on the ham radio bands.
@@AndreasSpiess I see, in that case the filters have to be inside the CMWX1ZZABZ-078 as on the schematic for the MKR 1300 there are just two capacitors and a zero ohm resistor, which to me looks a bit limited when it comes to filtering capabilities. I think it would be interesting to do actual measurements of the device to better see what the behavior is, but unfortunately I don't have those resources.
Look forward to the geostationary satellite project. p.s. I thought those @Yagi's@ used by Stuart were rubbish but maybe i'm wrong based on his results. Love the videoss
2.4 GHz LORA has a HUGE advantage over all the other frequencies: no limitations on duty cycle. You allowed to send 10byte measurements from a sensor: LORA 868: 172s LORA 2400: 0.5s (physical limit) Also if you just a diy maker at home, it’s not so easy/inconvinient to calculate the duty cycle for your project to keep it legal. With 2.4Ghz no need for that.
I wish companies would start selling WiFi HaLow (802.11ah) components. It would be perfect for esp8266/esp32 type devices; lower power and longer range, with more than enough bandwidth for the purpose.
Andreas, it is not true that Pro Mini is limited to 8s sleep. After 8s it can sleep again :) And without any RTC. I use it in the thermometer together with Nokia LCD and thermistor. With refresh every 3 minutes it has been operating for 1.5 years on single 18650 cell and I expect 2 years. AVR chips are perfect for LiIon because of more convenient voltage range and in deep sleep mode they draw almost nothing.
Regarding distance, measuring distance with bluetooth would also be an interesting topic. Especially as some apps want to use this for evaluating dangerous contacts. Did not yet read much about IT and wonder if Esp or Arduino with bluetoothmodule also van be used. Hope your biological tool will be oke as it can not be ordered on AliExpress.
I assume these apps only use RSSI readings, not distance measuring. Measuring distance is only part of the newest BLE standard and I am even not sure if it is already implemented in the newest smartphones.
@@AndreasSpiess FYI: Some links found on Bluetooth proximity.(The first is an evaluation of Dutch COVID19 distance app proposals.) gitlab.fdmci.hva.nl/biejh/covid19analysis/-/blob/master/README.md twitter.com/gannimo/status/1251075901900697601?s=20 github.com/pepp-pt/pepp-pt-documentation/blob/master/12-proximity-measurement/distance-measurements-and-classification-20200406.pdf bluetrace.io/ www.bluetooth.com/blog/proximity-and-rssi/ I did not read and understood all this info yet but seems interesting.
I've had my share of bicycle collisions. My last occurred in a foreign land, the language of which I did not understand. Fortunately only bloody knees and a bruised ego resulted. Maybe I'll collide with another ham next time in which case we could QSO in Q-code. Looking forward to your QO-100 experiment. 73
AH ! Hier.. Danke :D Ja das, daß Waldstück für 2.4 GHz zuviel ist, erscheint Plausiebel. Wasser soll ja eigenresonanz bei 2,4 GHz haben(Mikrowellenherd). Habe das zumindest auch oft bemerkt das dann beim Drohnen flug die Verbindung Rapide abnimmt. Interresantes Video. Bemühe mich auch gerade 2 Module zu bekommen. Danke nochmal :)
Der Wald hat sicher eine gewisse Dämpfung und die addiert sich zum Rest. Unterdessen scheint es Satellitenprojekte auf 2.4GHz zu geben. Da bin ich gespannt wie gut man die hier unten hört...
@@AndreasSpiess Many medical doctors are makers. Especially surgeons, they are very skilled of course. Intelligent and highly educated craftsmen and much more.
@@klassichd10 Yes I would agree, I know an opthalmologist that actually used his love of electronics to end up as one of the best eye laser technicians in the USA.
I guess i should also add in here that the equipment used for eye surgery is really really good for microsoldering. The smallest of components are relatively large compared to the structures inside the eyes.
I'm surprised to not see this type of chip in ham radio use. Years ago, any device that could be pressed into transmitting service was used, misused, or abused into ham radio use. Very interested to see your new satellite setup - I think I'd be using a larger transmitting dish - perhaps another TV dish.
80 cm should be enough from what I read. 60 cm works, too. But you need a lot of power. And the 80cm dishes are common and cheap here. These days we have SDR devices, so we probably will not need such chips.
Hai... i am your new fan from malaysia. Thank you for your informative video. I really hope that you can share your video on the amateur satellite project. GWS and 73
Andreas Spiess, that's a fair view. It might also encourage those that aren't licensed to do the course and get licensed. You SDR, and radio videos in general, have peaked my interest in getting licensed. As it's all relatively new to me, seeing what is possible with a license is a significant driver. I appreciate all of your content, and the effort you put in to create it.
@@AndreasSpiess There are some interesting (but crude) Radar (ultrasonic SR04) Arduino based designs that actually work! But of course, they are slow at 8 bit. Imagine a small raspberry Pi with audio alerts of on-coming traffic. I'm glad you survived with so few injuries. It sounds like you are very lucky this time because of environmental circumstances! As you are probably aware, Volvo Heavy Trucks in Europe have developed an active Radar / sensor platform that is integrated into the braking system. I can paste links of you wish. It truly is impressive, taking into account vehicle weight, velocity (vehicle and all surrounding targets), distance parameters, braking requirements, etc. Apparently, the system is very small, requires very little power and sweeps 360° , 720 times per second. If autonomous cars and trucks are part of our future, I'm guessing it will be available for bicycles in the near future! By the way, I hear anti-lock disc brakes are also being developed for bikes!
Another really good video! You said that there is only a "small chance" that the satellite project will be made into a video. Do you have a separate channel for your "radio amateur" projects?
You can "sleep" as long as you want without using a RTC by using a variable. The AVR will still wake every 8s but you can check the variable for a specific threshold and send your stuff or increase it and go back to sleep. This will not incease your average sleep current to much. Depending on the batteries you'r planning to use. 2xAAA 4min sending interval (RFM69) last ~5years for me.
With line of sight i got 2,4 km with normal WIfi 100mW 2MB/s (or even better) so no surprise - what will be more interesting to me is a comparison in urban jungle areas to normal wifi - are there any advantages in range compared to normal 2.4 Wifi? Greetings to🇨🇭, get well with your finger, nice to hear that you haven't forgot the the privilege of a ham radio licence and thank you for the great video today.
You were lucky with your Wi-Fi if you only used normal antennas. In my tests I used directional antennas for the 2.5 km. Inside the house it penetrates better than Wi-Fi. I would say it is similar than on the outside: Better than Wi-Fi and worse than sub GHz LoRa. And I forgot to mention: I am now on DMR ;-)
I think a "Bonus Project" video series will be a good motivation for some to take the test! Thanks a lot. ;) For other people reading this comment: There is now a video with the title "Bonus Project part 1: 36'000km Wi-Fi (QO-100)" th-cam.com/video/JbXaBDRQ-q0/w-d-xo.html
The question remains why one would even consider bringing yet another specification into the 2.4 GHz band, which is already full of background noise, while gaining nothing.
If I am tested for the virus, I hope it will include testing for antibodies and that the test will show that I had the virus without knowing it and am now bulletproof. It always pays to be optimistic...
Thank you for such a wonderful video. I am planning to work on the ranging aspect of SX1280 and order the E28 modules. Can you please let me know if the PCB footprint of the module is available (as a form of package)?
Adding to the (hopeful cacophony of) voices for the satellite video! :D That sounds awesome. Is this just for the sake of doing it, or related to your day job?
Hi Andreas, first of all, big fan of your videos! Very informative. I was wondering If you have the adapter (pin) PCB for the SX1280 freely available somewhere?
Hi, I am facing issues in receiving the Data in sx1280. I am using stm32 board with lorabasics modem code. Will you help me to solve the issues. Thanks in advance.
Interesting as always. But I am a bit confused about the usage, for this module. For short range I will prefer using an other radio type either Zigbee or bluetooth (maybe Wifi), for longer range 433 or 868 mhz. About power consumption I don't think ESP32 is the best choice, I would have used a low power MCU for that purpose, my own preferred MCU is the EFM32 Gecko. With this MCU I can run a lorawan node on 5uA during sleep (inclusive the radio and other stuff).
I agree with the usage (I mentioned it in the summary). Concerning power: I plan to add a small solar cell (it should have enough light). The ESP32 is probably not the best choice, but I do not want to add a new processor to my line-up.
@@AndreasSpiess Well new processors is no big problem, and I suppose that you also not are using the same hammer for all jobs. My code is programmed in C for all processors without any problems, I agree that the internal peripherals are different so that takes some time to figure out. One thing I look for as a hobby maker is that the programming tool is free and off-line. For the Silicon-labs processor the tool (Simplicity studio) is free. The tool also supports EFM8, an other MCU based on 8051. My collection of MCUs is: EFM32, STM32, EFM8 (blue-pill) for non wifi solutions, and ESP32 (IDF) and ESP8266 for Wifi applications. Except for the Silabs processor I am using PlatformIO as development platform. By the way, remember that you should not use regular glass to protect your UV sensors since normal glass filters UV. I have been using "fused silica slides" for microscopes
Racing bicycles... stick to motorcycles ! Congratz with passing the 200K subscribers ! Good quality video, as usual ! Take care of the finger... no more household tasks for a while I guess.... ;-)
@@AndreasSpiess I'm looking forward to see the video with the 2.4GHz booster and the satelitte combination. Some years ago I did some experiments with gain antenna's on 2.4 and was amazed of the result (on rooftop line of sight). Actually I got a little scared and turned it off after a day or so...
Hallo Andreas, zunächst besten Dank für deine so interessante Videos. Ein Frage zu deiner Platine @1:18 für E28 Vertreibst du die, oder hast du die Daten zum selber PCB-Bestellen irgendwo veröffentlich?
Ich habe mir mal 5 Stück machen lassen, 4 davon verbaut und eine verloren. Aber ich glaube LoraTracker hat welche.www.loratracker.uk/product/nicerf-sx1280-lora-module-mikrobus-board/
Great video, thank you :)! Is the rssi reading on the modules part of the library? I can’t remember an option to check rssi on the the e32 modules from ebyte.
Seems you connected the IPEX connector on E28 module but without disconnecting the PCB antenna, rather than switching the 0R resistor to connect the IPEX disconnecting the PCB. Don't you think could have a positive impact on performances of external antenna cut out the PCB antenna connection?
@@AndreasSpiess Thanks for the reply. I guess the PCB antenna would suffer more from having IPEX connected, than the external antenna from having the PCB antenna connected, but it's hard to quantify the impact in both cases without tests. A practical comparison would be interesting. :)
Hello Andreas, don't speed on your bike, make more video :-) , just completed a LORA module type e19868m20s connected to a ESP8266, works great, problem is the connection to the chip, used small single wires on a perf board, but after connecting to the ESP8266, and uploaded the reciever code it started to recieve data from my outside the house transmitter, so only tested the reciever mode at this moment.
Hello Sir, Can you please share the exact code that you used for these ranging tests. I am currently using NiceRF's SX1280 module. My code is not working. It would be a great help if you could provide me with the code which you used for the experimentation done in this video. Thank You
If I want to build a DC to AC inverter, how do I choose the capacitor and inductor? The inductor is especially difficult to make since the only thing I have is a multimeter.
You could sleep n times and then execute your code. For example sleep 8 times to get 64 seconds of sleep time. It's not super accurate but if this doesn't matter it will work like that.
@@AndreasSpiess When waking up from sleep, Atmel chips are resuming where they stopped in the code (unlike ESPs reboot). You can make a simple count loop around a sleep call.
A humble ATmega328p using just the watchdog timer to wakepup from deep sleep can last a long time on even on small batteries. I have had a LoRa node sending sensor readings every 15minutes, the 155mAhr battery (4.2V) has dropped 200mV in 4 months. See here; www.loratracker.uk/just-how-long-can-a-lora-sensor-battery-last/
@@AndreasSpiess I second Ripper121 and Jens: Low power on other micros is a pretty easy & solved problem (either old AVRs, or newer ARMs that have support for Arduino). Memory is not lost in sleep (unless you go to the deepest possible sleep), so you just resume from previous state without using flash. And ESP8266 or ESP32 in active mode are crazy power hungry compared to basically anything.
Hi Andrea, I'm not Ham radio, but I'm interested in your Oscar 100 satellite communication project. Can you tell us more about this, show us the equipment? I am sure that a video would be very appreciated by your subscribers. Thank you for your great work!
Thanks for testing these and for another very good video! I'm interested in using them for our enviro/agricultural research projects. Unlike the sub GHz bandwidths, having no limits on transmissions rates is another good advantage. Do you think that these achieve better range/ penetration over other 2.4GHz solutions in forest or crop applications? We are only interested in 500m forest ranges and up to 1km in crop systems where antennas could be installed over the crops.
2.4 GHz is absorbed by water and wet matter of any kind (like trees, foilage etc.). I think you will have better results on 868 Mhz. Or try DECT at 1.8 Ghz if 115kbps is enough.
By any chance, could you test how it works inside the buildings? I'm looking for something to connect my flat with garrage haul in basement 5 floors below. At the moment GSM is only option.
My Asian wife always says.. Are you listening to the man with the sweet voice again?😄
Say hello to her and thank you for the compliment!
Please consider a short video about your planned satellite experiment - although most of us would not be able to replicate your experiment, I think we all come here to learn and expand our knowledge. Thanks for the videos Andreas!
Because quite a few asked for the coverage of the satellite project: Maybe I will reconsider my decision...
@@AndreasSpiess I can say I am interested too, if that helps
@@AndreasSpiess I am very interested in it too.
I concur, that is what I need to learn up my MBD brain 😆
"Doctor," says the man excitedly and dramatically holds up his heavily bandaged hands. "Will I be able to play the piano when these bandages come off?"
"I don't see why not," replies the doctor.
"That's funny," says the man. "I wasn't able to play it before."
Good one!
Olds but goodie.
Good one
Mr. Spiess, first of all, get well soon. Thanks for the excellent videos.
Glad you like them!
Requested this video in comments on Andreas last video about sensors and what happened?
Andreas deliver days later. This was more than I ever could hope for! Thank you so much Andreas for delivering another brilliant starting point for my projects.
I try to listen to my subscribers ;-)
I was kind of shocked when reading the title of your video. Thanks to your LORAWAN videos you hooked me up, and I am into this technology now for...wait: 2 days. Imagine my face when I thought "is it over, do we have to use 2.4 GHz now?". Glad it turned out different. Cheers, stay safe, best regards from Germany
Just another possibility...
At first I thought you had built a robotic finger, but then heard the news of the accident :-(
Brilliant video Andreas, thank you for sharing but a mere snippet of your huge knowledge base :-)
No,. definitively not a robot. Real flesh and blood inside ;-)
@@AndreasSpiess unfortunately, some of the blood ended up on the outside..
Note: to make an arduino sleep longer, just put the sleep call in a loop. works great in my years of doing so. I.e. you want it to sleep for approximately 5 minutes, =300sec so loop 50 times on the sleep function at 8s each. arduino clock isn't accurate at all, but for sensors reading ever X minutes, its close enough.
Thank you for the tip!
Thanks for the video and taking the time to venture out on a range test. Off to watch #219 now, hope the finger is back in action soon :)
It will take its time, as the doctor said. But at least it does no more hurt much...
Well done, Andreas.
The SX128X devices do work rather well, and although they dont have the extreme long distance of UHF LoRa, 2.4Ghz is pretty much a worldwide allocation with a very wide band and no duty cycle limits so there is the possibility of moving quite large amounts of data around.
The PCBs shown in the video, with the LoRa devices on, are good for experimenting, they are breadboard friendly and you can get them from the website. You will get better performance using the modules that can take an SMA antenna.
I definitively like SMA connectors. The U.FL are too small for me. But I started this project last year and got those boards without the SMA connector.
Tack care of your hand and nice find of SX1280.
I will definitely try to utilize it my upcoming research and cite your contribution
Thanks as always ✨👌✌
You are welcome!
Best wishes my friend ... I have a few christmas tree light project ideas, and have enjoyed learning bits and pieces from you, ( mainly i like your 'kitchy' style !
Enjoy your project. Light is always rewarding as a project because other people will also like it.
Sorry to hear about your finger.
You need to be more careful. Hope it heals fast without problems.
Greetings from Bosnia! You are welcome to visit.
It is now ok and I can use my bicycle again...
So far I was only in Croatia (along the Danube River). But you never know. Maybe I will once come to your country!
I'm experimenting with sx1280 for a work project and I am very happy with the results. I am getting around 10% packet error rate at 180meters without line of sight in a very urban environment. I'm using the integrated pcb antenna, SF12 , BW 1600 and 4/5 CR. 10% might seem pretty bad, but it's not important for my application.
Thank you for sharing your experience!
You explained the subject very well. It was a useful video.
Glad you think so!
Thanks for this interesting video.
Have a good rest!
Thank you!
Thanks Andreas, that module looks very interesting.... Speedy recovery for your finger.......
Many thanks!
Thanks for the video. Sorry about the finger and the crash. Three years ago I crashed into a stationary post on a trail at full speed. I went over the handlebars and wrecked my 1978 Schwinn Super Le Tour (old friend of mine). I'm your age - recovery was tough and incomplete. The pavement seems to get harder every year. But all-in-all I think I was lucky. Best of luck to you in your recovery.
Sorry to hear that. Yes, we do not ger younger and things start to get more difficult. On the other hand, age has also a lot of advantages. When it happened, I knew, I cannot change it anymore and was quite calm. Maybe different than 30 years ago...
I have a brand-new bike, but it seems not hurt too much. Just the front brake needs a replacement.
I'd love to see you do a video on accessing the QO-100 satellite. I did this a while back and it would be interesting to see your take on the project.
We will see... This is not a HAM channel and most of my viewers are not licensed.
@@AndreasSpiess It's still interesting! Maybe even more, since it would offer clues why one might want to get a HAM license.
Habe auf Grund von deiner gezeigten Umgebung herausgefunden wo du Wohnst. Nett zu wissen, das man einen Tech TH-camr in der Nähe hat. Finde deine Videos echt nice. MFg ein Elektriker aus Bubendorf :D
Grüsse zurück!
Great work! Looking forward for the satellite project!
Coming soon!
It's always bad when you hurt the very finger you use to push buttons with. It was an interesting video. I'm not sure I can see any applications for using the 2.4GHZ band with LoRa, but it's still interesting. I see the possibility for too much interference between devices. You can probably solder with either hand as I can. I learned to use either hand back in the 80's building stuff all night on the kitchen table. I'm sure you've been there too. I hope you have a great night Andreas.
Fortunately I am lefthanded ;-)
I think one of the motivations for developing 2.4 GHz modules was the absence of duty-cycle regulations in that band. Maybe it can be useful for some projects which need to communicate continuously.
You are right, this could be a reason. But the competition of BLE is quite strong there...
3:31 - Someday I will visit Switzerland. Looks Beautiful!
Welcome! We have a lot of tourists!
Get well ASAP! Sorry for your accident, but the Czech people have a saying: With sports to PERMANENT DISABILITY or WORSE! When I was young, I build bicycles and made them custom to the user.... BUT I had several close encounters .... just like you, so I promoted to motorcycles and that was even worse! I had a very bad accident so that was it for 2 wheel anything! Cars are much safer and I can roll down the windows, like today, it is almost 20C and sunny day! I hope we are done with snow - like last week! Anyway, great work on your radio projects! Thanks for your video again Andreas!
The weather is also nice here. But for the moment I cannot use my 2 wheels, also not the one with an engine. We will see. At least the pain is smaller now and I can sleep better...
@@AndreasSpiess Hope to heal yourself soon! The constant pain is tiresome and many people after something is "busted", get more pain with changing weather! I have severe Fibromyalgia, and I was buried 3x in a coal mine when I was 20-22 years old (young!), so the weather changes keep reminding me every day my young life's troubles.... But you are more active so I expect that you will recover sooner and I hope that the weather changes aren't gonna tease you! You need to concentrate on our education! ha ha ha Thanks again!
good healing, it really could have been much worse, but a little luck sometimes it takes!
Interssante that video on communication with the geostationary satellite. I stay tuned!
I did not yet decide if it will appear on the channel.But there is some interest in the topic. We will see...
Thanks again for the excellent video, wish you a speedy recovery and good luck
Thank you!
Thanks for the video.
One note about those SX1280 modules.
It seems like by default they fitted with a capacitor connecting the PCB trace antenna and to use u.FL connector the capacitor has to be moved to the proper position.
In your video, it looks like you are using just the PCB antenna.
So maybe that was cause it did not work in the 5 km range test.
Hope I could save some head-scratching to someone. :)
You are right. Usually, it is a 0 ohms resistor instead of a bridge because it is easier for their pick-and-place machines. I checked the modules I used for the tests, and both have a connection to the connector. But it was not easy to change the connection because of the reduced space...
Thanks for the video.
I really hope to see a video about the QO-100 project.
Hope your finger will be ok soon
We will see... QO-100 is quite a big project and not very interesting for non-hams maybe...
Big project = more videos :-)
Being an Italian ham, but not a prosciutto :-D , I would really like to see your approach to this new adventure.
Thanks again for all your very interesting and educative video.
@@AndreasSpiess im not licenced, but would really like to see that project...i might learn something for the receive side!...
Really would love to see this!
as a fellow ham i would also like to see some videos about the QO-100 project :)
A pair of gridpack dishes would be very interesting to see at work with those radios
I did a video with other directional antennas on 2.4GHz...
I'm glad that nothing worse happened, I don't think youtube would be the same without the swiss guy ;)
Thank you!
Another great video Andreas but please please please make a video on the QO-100 build. It'll be great for the hobby and we'd all love to see it. Thanks and 73's SA6DAZ
Maybe. I do not want that this channel becomes a HAM channel. It should be open to everyone. Sometimes I try to encurrage a few of us to take teh examen...
wish you get healthy soon, your video give me lots knowledge, thank you!
Thank you! I hope, too.
I recently purchased two Arduino MKR WAN 1300 and when tinkering with it I did discover that it's possible to configure also for non-ISM bands, even down to VHF frequencies and with narrow bandwidths as well. So I did set it up on 144.800 MHz (HAM radio APRS frequency, so no major interference for my short test) and 12.5kHz bandwidth and then I did check with the Yaesu 857D I have (not very scientific, but for a crude check at least) and did see that it did actually work there. I haven't tested any range or output power so I can't tell if it's actually useful for any distance beyond a few decimeters.
But from the perspective of shared knowledge I think that this might be interesting.
At least one idea I have is to see if this device could be used to build a beacon for VHF and UHF on the ham radio bands.
The chip can do it, but the filters are made for 443, 868, or 915
@@AndreasSpiess I see, in that case the filters have to be inside the CMWX1ZZABZ-078 as on the schematic for the MKR 1300 there are just two capacitors and a zero ohm resistor, which to me looks a bit limited when it comes to filtering capabilities.
I think it would be interesting to do actual measurements of the device to better see what the behavior is, but unfortunately I don't have those resources.
Look forward to the geostationary satellite project. p.s. I thought those @Yagi's@ used by Stuart were rubbish but maybe i'm wrong based on his results.
Love the videoss
I never tried them. And he is quite good in antenna stuff. So maybe he "tweaked" it ;-)
2.4 GHz LORA has a HUGE advantage over all the other frequencies:
no limitations on duty cycle.
You allowed to send 10byte measurements from a sensor:
LORA 868: 172s
LORA 2400: 0.5s (physical limit)
Also if you just a diy maker at home, it’s not so easy/inconvinient to calculate the duty cycle for your project to keep it legal. With 2.4Ghz no need for that.
You are right, there are no duty cycle limitations on 2.4GHz. But the speed is relative as I showed in the video.
I wish companies would start selling WiFi HaLow (802.11ah) components. It would be perfect for esp8266/esp32 type devices; lower power and longer range, with more than enough bandwidth for the purpose.
Not all standards go mainstream. The same thing applies to the SX1280 modules. Maybe they will disappear because not a lot of use cases.
So it "just" needed a bicycle accident in Corona times to penetrate your white signature glove. 😁
And scissors ;-)
Now you need a mini pointing finger made in the fashion of your current one! :D
:-))
To get a longer sleep duration on the pro mini, you can use multiple consecutive sleep commands, no need to use a ESP32..
Thank you for the tip!
Happy to know you are right :) Thanks for the video :)
My pleasure!
Get well!
Thank you!
Andreas, it is not true that Pro Mini is limited to 8s sleep. After 8s it can sleep again :) And without any RTC. I use it in the thermometer together with Nokia LCD and thermistor. With refresh every 3 minutes it has been operating for 1.5 years on single 18650 cell and I expect 2 years. AVR chips are perfect for LiIon because of more convenient voltage range and in deep sleep mode they draw almost nothing.
I got a tip on how to store a counter in non-volatile memory. These days I do not often use Atmel chips anymore...
Regarding distance, measuring distance with bluetooth would also be an interesting topic. Especially as some apps want to use this for evaluating dangerous contacts.
Did not yet read much about IT and wonder if Esp or Arduino with bluetoothmodule also van be used.
Hope your biological tool will be oke as it can not be ordered on AliExpress.
I assume these apps only use RSSI readings, not distance measuring. Measuring distance is only part of the newest BLE standard and I am even not sure if it is already implemented in the newest smartphones.
@@AndreasSpiess FYI:
Some links found on Bluetooth proximity.(The first is an evaluation of Dutch COVID19 distance app proposals.)
gitlab.fdmci.hva.nl/biejh/covid19analysis/-/blob/master/README.md
twitter.com/gannimo/status/1251075901900697601?s=20
github.com/pepp-pt/pepp-pt-documentation/blob/master/12-proximity-measurement/distance-measurements-and-classification-20200406.pdf
bluetrace.io/
www.bluetooth.com/blog/proximity-and-rssi/
I did not read and understood all this info yet but seems interesting.
Hope to see the QO-100 video! 73’s ON8NP
We will see... A lot of commenters ask for it.
nice content and achievement on range communication. Hope you recover well from the broken finger and bring the dish online for the sattelite.
I hope, too. The first is a little more important, though ;-)
Thank you for your Service ♥️
My pleasure!
Thanks for great content ... recover fast, and please consider making GS satelite video :)
The recuvery is a very passive process. Not what I like ;-)
A video, or at least a summary of your experiences from the satellite project would be very useful and very appreciated!
Get well soon!
I've had my share of bicycle collisions. My last occurred in a foreign land, the language of which I did not understand. Fortunately only bloody knees and a bruised ego resulted. Maybe I'll collide with another ham next time in which case we could QSO in Q-code. Looking forward to your QO-100 experiment. 73
Yea, Q-code is universal. But those days, most people only know a few codes by hart...
AH ! Hier.. Danke :D
Ja das, daß Waldstück für 2.4 GHz zuviel ist, erscheint Plausiebel. Wasser soll ja eigenresonanz bei 2,4 GHz haben(Mikrowellenherd). Habe das zumindest auch oft bemerkt das dann beim Drohnen flug die Verbindung Rapide abnimmt. Interresantes Video. Bemühe mich auch gerade 2 Module zu bekommen.
Danke nochmal :)
Der Wald hat sicher eine gewisse Dämpfung und die addiert sich zum Rest. Unterdessen scheint es Satellitenprojekte auf 2.4GHz zu geben. Da bin ich gespannt wie gut man die hier unten hört...
Your hand surgeon watches your electronics channel?
Are u now the Bionic man with the Swiss accent or do u have to go in for that later? :)
I was also astonished. But many of us have a hobby which is different to our profession...
@@AndreasSpiess Many medical doctors are makers. Especially surgeons, they are very skilled of course. Intelligent and highly educated craftsmen and much more.
@@klassichd10 Yes I would agree, I know an opthalmologist that actually used his love of electronics to end up as one of the best eye laser technicians in the USA.
I guess i should also add in here that the equipment used for eye surgery is really really good for microsoldering. The smallest of components are relatively large compared to the structures inside the eyes.
Oh the next video on big boy stuff 20W ! I can't wait. :)
As I said: Probably not on the channel. But you never know...
I'm surprised to not see this type of chip in ham radio use. Years ago, any device that could be pressed into transmitting service was used, misused, or abused into ham radio use. Very interested to see your new satellite setup - I think I'd be using a larger transmitting dish - perhaps another TV dish.
80 cm should be enough from what I read. 60 cm works, too. But you need a lot of power. And the 80cm dishes are common and cheap here.
These days we have SDR devices, so we probably will not need such chips.
@@AndreasSpiess SDR devides, this is true, and cheap too. You are very fortunate to have a quality microwave satellite transponder above!
Hai... i am your new fan from malaysia. Thank you for your informative video. I really hope that you can share your video on the amateur satellite project. GWS and 73
As I mentioned, maybe not, maybe as an additional short one...
Why will the chance of your satellite experiment appearing on your channel be small? It sounds very interesting, and I'd be keen to see the results.
Most of my viewers are not licensed. This is why I thought the interest is not big. But we will see...
Andreas Spiess, that's a fair view. It might also encourage those that aren't licensed to do the course and get licensed. You SDR, and radio videos in general, have peaked my interest in getting licensed. As it's all relatively new to me, seeing what is possible with a license is a significant driver. I appreciate all of your content, and the effort you put in to create it.
Just have one thing to say: You live on paradise! what wonderful scenes
Spring is a lovely season here...
You need to build a radar system for your bike @3 GHz
Now I understand how you tested Covid-19 negative last week :)
The radar definitively would have helped as there was a hedge taking the sight between the two of us.
@@AndreasSpiess There are some interesting (but crude) Radar (ultrasonic SR04) Arduino based designs that actually work! But of course, they are slow at 8 bit. Imagine a small raspberry Pi with audio alerts of on-coming traffic. I'm glad you survived with so few injuries. It sounds like you are very lucky this time because of environmental circumstances!
As you are probably aware, Volvo Heavy Trucks in Europe have developed an active Radar / sensor platform that is integrated into the braking system. I can paste links of you wish. It truly is impressive, taking into account vehicle weight, velocity (vehicle and all surrounding targets), distance parameters, braking requirements, etc. Apparently, the system is very small, requires very little power and sweeps 360° , 720 times per second. If autonomous cars and trucks are part of our future, I'm guessing it will be available for bicycles in the near future! By the way, I hear anti-lock disc brakes are also being developed for bikes!
Awesome video, QO-100 is been working just fine from Vienna as verified by my father =D 73 de OE1LBS and OE1WBS
Maybe we meet there one day ;-)
Thanks for the info!
Any time!
Another really good video! You said that there is only a "small chance" that the satellite project will be made into a video. Do you have a separate channel for your "radio amateur" projects?
We will see... I will not start a second channel, I have no time for that :-(
You can "sleep" as long as you want without using a RTC by using a variable. The AVR will still wake every 8s but you can check the variable for a specific threshold and send your stuff or increase it and go back to sleep. This will not incease your average sleep current to much.
Depending on the batteries you'r planning to use.
2xAAA 4min sending interval (RFM69) last ~5years for me.
Hod do I address the non volatile variable?
@@AndreasSpiess The memory isn't lost during sleep. I'll send you a code snippet.
@@AndreasSpiess gist.github.com/vondraussen/be35a2e0da10e9623215ec24b0c8ef74
Thanks! I do not use Atmel chips often these days...
Your Neighbors will love that 20w on 2.4ghz lol
It will point to the sky. No problem.
Your a nice guy. Thats something i lack. But it is good to know that ppl out there are.
With line of sight i got 2,4 km with normal WIfi 100mW 2MB/s (or even better) so no surprise - what will be more interesting to me is a comparison in urban jungle areas to normal wifi - are there any advantages in range compared to normal 2.4 Wifi? Greetings to🇨🇭, get well with your finger, nice to hear that you haven't forgot the the privilege of a ham radio licence and thank you for the great video today.
You were lucky with your Wi-Fi if you only used normal antennas. In my tests I used directional antennas for the 2.5 km.
Inside the house it penetrates better than Wi-Fi. I would say it is similar than on the outside: Better than Wi-Fi and worse than sub GHz LoRa.
And I forgot to mention: I am now on DMR ;-)
Interesting video! Could we connect about potentially having you test out a BLE5 long range HAT for a Pi?
I am on Facebook messenger and Twitter
I know little on lora, but I watch, because you are wealth it. Stay safe . Australia is still safe.
Here we start to go back to normal. But slowly...
If you don't show your QO-100 project on this channel, where else would you show it?
To me. I just wanted to motivate a few viewers to take the tests and become a HAM operator...
I think a "Bonus Project" video series will be a good motivation for some to take the test! Thanks a lot. ;)
For other people reading this comment: There is now a video with the title "Bonus Project part 1: 36'000km Wi-Fi (QO-100)" th-cam.com/video/JbXaBDRQ-q0/w-d-xo.html
Take care.....
I try...
The question remains why one would even consider bringing yet another specification into the 2.4 GHz band, which is already full of background noise, while gaining nothing.
Everybody can try... It is ISM ;-)
Hi, can you give me the code for this project? I am new to this field and quite interested in your project and would like to learn more details.
I put the link to the libraries in the video description. I do not have the code anymore.
It always makes me blow mind about how he shows subscribe label.
And also wondering why doctor watches electronics videos
Because he has this hobby, he told me.
Hello, I'm looking for a selenoid valve loRa. Anay ideas? is for residential water purification systeme. Could you help me out?
I am a TH-camr and share my knowledge in my videos. I am sure Google will help you finding a solution.
If I am tested for the virus, I hope it will include testing for antibodies and that the test will show that I had the virus without knowing it and am now bulletproof. It always pays to be optimistic...
Here we only test for the virus, not yet for the antibodies.
INPRESIONANTE
:-)
Thank you for such a wonderful video. I am planning to work on the ranging aspect of SX1280 and order the E28 modules. Can you please let me know if the PCB footprint of the module is available (as a form of package)?
I do no more remember where I got it from:-(
@@AndreasSpiess Thank you.
Can you not gut a LNB and use that as an enclosure for that little unit and use a small probe for the antenna compatible with the LNB enclosure.
I do not know :-(
Adding to the (hopeful cacophony of) voices for the satellite video! :D That sounds awesome. Is this just for the sake of doing it, or related to your day job?
This is only hobby stuff. That is what HAM operators do sometimes when they are locked-down;-)
@@AndreasSpiess The most noble goal there is!
Hi Andreas, first of all, big fan of your videos! Very informative. I was wondering If you have the adapter (pin) PCB for the SX1280 freely available somewhere?
If I remember right, LoRatracker has one in his shop
Hi,
I am facing issues in receiving the Data in sx1280. I am using stm32 board with lorabasics modem code. Will you help me to solve the issues.
Thanks in advance.
I am a TH-camr and cannot do consulting :-(
Interesting as always.
But I am a bit confused about the usage, for this module. For short range I will prefer using an other radio type either Zigbee or bluetooth (maybe Wifi), for longer range 433 or 868 mhz. About power consumption I don't think ESP32 is the best choice, I would have used a low power MCU for that purpose, my own preferred MCU is the EFM32 Gecko. With this MCU I can run a lorawan node on 5uA during sleep (inclusive the radio and other stuff).
I agree with the usage (I mentioned it in the summary). Concerning power: I plan to add a small solar cell (it should have enough light).
The ESP32 is probably not the best choice, but I do not want to add a new processor to my line-up.
@@AndreasSpiess Well new processors is no big problem, and I suppose that you also not are using the same hammer for all jobs. My code is programmed in C for all processors without any problems, I agree that the internal peripherals are different so that takes some time to figure out. One thing I look for as a hobby maker is that the programming tool is free and off-line. For the Silicon-labs processor the tool (Simplicity studio) is free. The tool also supports EFM8, an other MCU based on 8051.
My collection of MCUs is: EFM32, STM32, EFM8 (blue-pill) for non wifi solutions, and ESP32 (IDF) and ESP8266 for Wifi applications. Except for the Silabs processor I am using PlatformIO as development platform.
By the way, remember that you should not use regular glass to protect your UV sensors since normal glass filters UV. I have been using "fused silica slides" for microscopes
Racing bicycles... stick to motorcycles ! Congratz with passing the 200K subscribers ! Good quality video, as usual !
Take care of the finger... no more household tasks for a while I guess.... ;-)
You are right. It has to stay dry. So no dishwashing, etc ;-) A little return for the inconveniences.
@@AndreasSpiess I'm looking forward to see the video with the 2.4GHz booster and the satelitte combination. Some years ago I did some experiments with gain antenna's on 2.4 and was amazed of the result (on rooftop line of sight). Actually I got a little scared and turned it off after a day or so...
Hallo Andreas, zunächst besten Dank für deine so interessante Videos.
Ein Frage zu deiner Platine @1:18 für E28
Vertreibst du die, oder hast du die Daten zum selber PCB-Bestellen irgendwo veröffentlich?
Ich habe mir mal 5 Stück machen lassen, 4 davon verbaut und eine verloren. Aber ich glaube LoraTracker hat welche.www.loratracker.uk/product/nicerf-sx1280-lora-module-mikrobus-board/
@@AndreasSpiess Danke dir
Thanks for your fight for LoRa. What is your most favorite LoRa application of your own?
My satellite node in my garden :-)
@@AndreasSpiess Ah, something like EME but with a satellite instead of the moon and an transceiver instead of an echo. Hats off!
Great video, thank you :)! Is the rssi reading on the modules part of the library? I can’t remember an option to check rssi on the the e32 modules from ebyte.
I only used Stuart's library. Normal modules should provide this info.
Seems you connected the IPEX connector on E28 module but without disconnecting the PCB antenna, rather than switching the 0R resistor to connect the IPEX disconnecting the PCB. Don't you think could have a positive impact on performances of external antenna cut out the PCB antenna connection?
You are right. I learned it later ;-)
@@AndreasSpiess Thanks for the reply. I guess the PCB antenna would suffer more from having IPEX connected, than the external antenna from having the PCB antenna connected, but it's hard to quantify the impact in both cases without tests. A practical comparison would be interesting. :)
@@SilvioMaranoSMH17 I just remove the resistor and place a small solder blob on the right connection.
Andreas, do you know the actual crystal tolerance for the EByte Lora module? Is it sure to be +/- 5 PPM, or did you tweak it?
I did not change anything. Lora is quite forgiving because of the chirp.
@@AndreasSpiess i've had problems with this chip and I can only surmise its due to crystal tolerance issues; thanks for the great ride-along videos
Hello Andreas, don't speed on your bike, make more video :-) , just completed a LORA module type e19868m20s connected to a ESP8266, works great, problem is the connection to the chip, used small single wires on a perf board, but after connecting to the ESP8266, and uploaded the reciever code it started to recieve data from my outside the house transmitter, so only tested the reciever mode at this moment.
I hope you wil get also the other modes working.
@@AndreasSpiessgithub.com/OttoKlaasen/e19868m20s-LORA-module-with-ESP8266?fbclid=IwAR2DhPVUMuJKWATKJWE_I7ONWD1aMHRYvwQAxAobwwnPaXNLCuAJpi8OJdA
Gonna do my hb3 now
Very good and good luck!
@@AndreasSpiess th-cam.com/video/9PwQmDcSUow/w-d-xo.html
Hello Sir,
Can you please share the exact code that you used for these ranging tests. I am currently using NiceRF's SX1280 module. My code is not working. It would be a great help if you could provide me with the code which you used for the experimentation done in this video.
Thank You
If I do not published the code, it was not for publishing. Maybe you find an example in one of the libraries available for this chip.
Nice vidio ceep up your good work
Hope you will recover soon
I hope so too ;-) Thank you
Ha at 2:20 you thought the pandemic would end soon. Lol
It ended in-between as you can see in my last video... We were stupid enough to let it coming back :-(
If I want to build a DC to AC inverter, how do I choose the capacitor and inductor? The inductor is especially difficult to make since the only thing I have is a multimeter.
Maybe you google for that topic?
@@AndreasSpiess Yes, but I was hoping you might know another method.
You could sleep n times and then execute your code. For example sleep 8 times to get 64 seconds of sleep time. It's not super accurate but if this doesn't matter it will work like that.
Since I do not use the Atmel chips very often I did not find the non-volatile variables and I did not want to use the flash memory because of wear
@@AndreasSpiess I thought I remember that you can use the sleep function inside a for loop or put them after each other.
@@AndreasSpiess When waking up from sleep, Atmel chips are resuming where they stopped in the code
(unlike ESPs reboot).
You can make a simple count loop around a sleep call.
A humble ATmega328p using just the watchdog timer to wakepup from deep sleep can last a long time on even on small batteries. I have had a LoRa node sending sensor readings every 15minutes, the 155mAhr battery (4.2V) has dropped 200mV in 4 months. See here;
www.loratracker.uk/just-how-long-can-a-lora-sensor-battery-last/
@@AndreasSpiess I second Ripper121 and Jens: Low power on other micros is a pretty easy & solved problem (either old AVRs, or newer ARMs that have support for Arduino).
Memory is not lost in sleep (unless you go to the deepest possible sleep), so you just resume from previous state without using flash. And ESP8266 or ESP32 in active mode are crazy power hungry compared to basically anything.
Hi Andrea, I'm not Ham radio, but I'm interested in your Oscar 100 satellite communication project. Can you tell us more about this, show us the equipment? I am sure that a video would be very appreciated by your subscribers. Thank you for your great work!
Thanks for your comment. Quite a few viewers share your opinion and maybe I will change my opinion...
Thanks for testing these and for another very good video! I'm interested in using them for our enviro/agricultural research projects. Unlike the sub GHz bandwidths, having no limits on transmissions rates is another good advantage. Do you think that these achieve better range/ penetration over other 2.4GHz solutions in forest or crop applications? We are only interested in 500m forest ranges and up to 1km in crop systems where antennas could be installed over the crops.
You have to test. You see in the video what I got as an indication
2.4 GHz is absorbed by water and wet matter of any kind (like trees, foilage etc.). I think you will have better results on 868 Mhz. Or try DECT at 1.8 Ghz if 115kbps is enough.
Thanks for showing us the IC. Could you please share a link to the calculator, I can't seem to find it.
It is on the Semtech homepage: semtech.my.salesforce.com/sfc/p/#E0000000JelG/a/2R000000HUhe/E1R69iQdsPinwLlScGvgs4irnjZUSWSKtfA9XpFbsoA
By any chance, could you test how it works inside the buildings? I'm looking for something to connect my flat with garrage haul in basement 5 floors below. At the moment GSM is only option.
It goes further than Wi-Fi. But because it depends on many things you must try in each situation.
Very interesting video! How long do you think would this work with a battery (arround 5000mAh)
So far I have no ideas because I also work on switching the sensors on and off and I do not know how long they need to stabilize.
Was the driver who stopped (thank you!) also a viewer of this channel?
It was a young lady. And she helped both of us.
lora ra 02 module put inside the iron enclosure the range is limiting to 4m please help me out in increasing the range
Did you add a proper antenna? Maybe you want to watch my LoRa and antenna videos?
@@AndreasSpiess yes
How does this compare to the ESP Now
I made a video about Wi-Fi and long-range antennas with the same places. It is as I said in this video.