Amazing Project, about your error message with the app, use a POST method instead of the GET method and that should remove the error. A Get method expects a result from the Server and a POST method sends data to the server. Keep up the amazing work, you really are amazing at the electronics
Just tried it.. In 35 minutes, I set this up and instead of sending voltage to a pin, I printed it out on the built in screen of the TTGO esp 32. Thanks a lot !
I think where I went wrong when I was trying to install the ESP32 Aduino setup was to use my current Arduino setup and just change it to do the ESP not thinking it would really screw up my other boards, which it did to no end When I finished, nothing worked and I had to rip it all out by the roots and start all over, giving up on the 32 and just being happy to be able to program my old arduino hardware once again. Next time I shall simply install it in a different location on my hard drive and I think that should work! Thanks for your great videos, I always learn something from them, and as I have always maintained, learning at least one new thing every day keeps our minds young, just as a walk in the desert every morning keeps my heart beating and my lungs pumping air as well. Ah the things we do for life....
I just tripped across this. Will try out the app as that interest me the most. I can make any electronics so that per for me is easy. If you don't want to take up your timers, you can always use an external clock and gate precise times levering the IRQ functions. That works great. Thanks for your work here. Really appreciate it.
Well done. A lot to unpack but a really good starting point. One caveat: don’t use really strong magnets when testing the Hall sensor, as it will kill the sensor (yup, I did)
You only need timer interrupts when you need very very precise timing... In this case you can just use millis or micros to check how much time has passed and only execute certain code in specific intervals, since it doesn't really matter if it executes a few milliseconds later.
Hello! First, great video as always! To all who also try to work with the ESP32 and fail, when I tried with my chip the simpleWifiServer example, that did not work and the chip has constantly disconnected from my PC and reconnected when Wifibegin was running. This is because my PC has turned off the USB port because too high current flows. So if you have the same problem then connect an external power supply to the ESP32 and the problem is solved! LG EK
At first, I thinked, that he want to troll us with the name of his computer (2:32) but then I saw that this is the correct name on the list from his router (7:03)
One possible fix for the android could be to let the esp send a 204 status on every URL you specified with a function this should get rid of the error because 204 stands for "no content". sending 404 on every URL would also work but will probably end in another error saying that the server couldn't find the requested data. i don't know what client.flush() exactly does but i think giving a proper response header with 204 is a way more elegant way of doing things. still nice addition to an already nice project ;D
thanks man. i was having anxiety because I promised this functionality to a client without even doing research... looks like I didn't need to after all ( except for your video, thanks n_n )
I think that you could fix the error (message) by sending out a proper response from the esp whenever it gets a new get request. The method of the server instance is called "send".
Thank you so much for this video, I can't follow many of your videos, but I love IoT and I have succesfully changed your videos idea to my project (controlling various relayswitches via an 433MHz transmitter and an NodeMCU)!
I don't know if someone already wrote that in comments but FastLed library has delay of it's own. You can't use arduino delay but you can use FastLed delay and it should work just fine. I has this problem with my matrix and FastLed delay helped. Sorry for grammar..
What would be really cool would be to add rfid receiver to the project so people can wear a little tag that is profiled to them specifically and so when they approach the panel it starts playing their favorite patterns, colors, etc. then someone could theoretically hang these in their hallway and when a user walks by it would synch to them. Even better would be if the rfid/nfc receiver could get the user info from the users phone as they walk by.
I'm new to these electronics...pls can esp32 be controlled through the internet from a place that is outside the WiFi reach say I travelled to another state but I need to control my device from where I am...can I still control the esp32 from my distant location?
I have enhanced my electric window blends to be remote controllable by esp8266 relais modules. I had to implement a way to send a few simple commands like up / down / stop / reboot and identify also. A HTTP Server is a lot of overkill to achieve this. Instead I send simple single character TCP-Messages to the esp8266, like "u", "d", "s" and so on. I also wrote an Android App to control the blends and a Java command line program that simulates presence while I'm on vacation. The Android IDE is fairly easy to use. No barrier for an intelligent fiddler like you are ;-)
Hi Jeremy...I wondered if you could make wireless system for guitar. I've been suffering with this project for over a year.. It doesn't have to be super high range ( but about 10m is minimum ?!) and obviously It can't have delay. Thanks, Tomas
Friend, today at 8:30 pm, I'm going to post a short video about a project I set up for the new electronics magazine, the project was saved for a few years and was almost completely finished, I'm going to do a restoration soon, clean up and finish what I missed to finish it. In the video I will only present what was set up at the time, the way it was until today. Original Language Português Brazil
Dear GreatScott, Thanks a lot for your nice video. I'm teaching code and IoT to kids and I use ScratchX, AppInventor and ESP8266 and I've developed many projects with them. And you inspired me a lot of ideas to share with the kids. For the error notification you got on the app, just add an empty C-Shaped block from Screen object "When Screen error Occurred" : all notifications will disappear
Cool Video as always. It really helped me out. I created an App to control a motor that opens my curtains, using the ESP32. I couldn't have done it without your help!!!. (Well maybe I could, but it would have taken A LOT longer). Thank You!!!
Oh wow, shades of the Lost In Space Computer!! I love it, one of my favorite series when I was a boy growing up in South Dakota! Wonderful information on how to get the little ESP32 running as well. I have several of them at home in South Dakota, when we return from our winter quarters that consist of our 35 foot Class A motor Home. (There may be one in my junk bag, I will have to check now I am excited!)
After watching this recently im not sure if you had your color order set wrong WS2812B is GRB AFAIK and also Fast Led has its own delay function I believe :) so if you havent checked it out recently it might be worth a try ! I use a NodeMCU with my WS2812B 240 pixel strip and it was the perfect addition !
Nice video. Can you please make a video on how to show a sensor analog reading by using this nodemcu with an arduino board inside a websites or an app.
ESP 8266 are still very great chips, even if you don’t care about using it for anything in particular they are great fun to mess around with and host servers. Plus they are pretty cheap (node mcus esp8266s are around 13 dollars for 3 chips)
I did a similar project to open a garage door with my phone. But I used a app called http request widget. Works great and let's you put a widget right on the home screen.
You might find it easier to have the ESP32 run all the networking and then talk to an Arduino over I2C. This way I got the best of both worlds - I really didn't want to lose the FastLED functionality having spent hours generating and amending the matrix based animations, which I had to do because I'm using 4 of the 8x8 pixel panels.
Hi Robert, can you point me to an example using the i2c communication between esp8266 and arduino? I tried serial communication (usind an esp12 and a teensy lc) but after some time the connection seem to stop working...
I got all my information from here: www.instructables.com/id/I2C-between-Arduinos/ It's not specifically about ESP-8266 or ESP-32 but the process is pretty much the same for those devices. Remember, however, to check the voltages - most Arduinos are 5v whereas the ESP devices are 3.3v - you'll need some form of voltage shifter but there's a lot to choose from on EBay and Ali Express. Hope this helps.
I built a 16x16 RGB board and have been using a RPI to power it. I think it's a nice solution because I can run code that pulls from weather underground and display it along with other fun animations. Definitely not the cheapest solution though.
If you create the interface for the browser through typing html code in arduino ide then to u can get rid of the error message since you actually have a "webpage" to browse
I like the APA102 library, which uses its own protocol running over SPI. It's pretty easy to implement a low level control yourself using that. Also works better with hardware or operating systems that aren't fully real-time.
This is the led strip; 16.4ft 5050 RGB LED Flexible Strip Light DC 12V Kit 5M 300 LEDs 5050 SMD IP65 Waterproof Color Changing LED Rope Light Strips & 12V 5A Power Adapter & 44Key IR Remote Controller
Would the ESP32 be powerfull enough to replace the Arduino completly? Do you plan to improve this project further? I would love to see you do more with this little MC.
This works if your willing to recompile everytime you want to connect to a new WiFi network. However, it would be much better if it could create an adhoc network that you connect to where you can input network connection settings.
I know this is an older video and surely someone has said it, but, just in case they haven't: You should be using POST and not GET request in this instance. You're trying to set a value on the server, not get data from the server. I'm not sure how to handle the code on the arduino to handle post requests or I wouldn't be here right now lol; but, it should be about the same as what you have.
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I do nothing with your information..but i enjoy watching very much..
same here
I agree but I have learnt heaps
You can always learn something even if you don't have such hardware you can learn web development or python all it need is a laptop and internet
Kinda
Ya. I do same
Your videos just turned my lazy sundays into productive sundays!
Amazing Project, about your error message with the app, use a POST method instead of the GET method and that should remove the error. A Get method expects a result from the Server and a POST method sends data to the server. Keep up the amazing work, you really are amazing at the electronics
Alternatively you can use PUT or OPTIONS
Was building this with an raspberry pi zero, which makes programming it way harder. This ESP32 is exactly what I need!
Just tried it.. In 35 minutes, I set this up and instead of sending voltage to a pin, I printed it out on the built in screen of the TTGO esp 32. Thanks a lot !
I think where I went wrong when I was trying to install the ESP32 Aduino setup was to use my current Arduino setup and just change it to do the ESP not thinking it would really screw up my other boards, which it did to no end When I finished, nothing worked and I had to rip it all out by the roots and start all over, giving up on the 32 and just being happy to be able to program my old arduino hardware once again. Next time I shall simply install it in a different location on my hard drive and I think that should work! Thanks for your great videos, I always learn something from them, and as I have always maintained, learning at least one new thing every day keeps our minds young, just as a walk in the desert every morning keeps my heart beating and my lungs pumping air as well. Ah the things we do for life....
I have done this to make internet connected 443MHz relays and homemade sensors. Works pretty well and runs stable for long time!
I just tripped across this.
Will try out the app as that interest me the most.
I can make any electronics so that per for me is easy.
If you don't want to take up your timers, you can always use an external clock and gate precise times levering the IRQ functions. That works great.
Thanks for your work here. Really appreciate it.
If you had the server return a 200 status code in a response, you could avoid that error code in the client. Great video!
Thanks!
Thanks for the support :-)
impulse bought one of these from banggood and i'm glad i won't regret it now
Well done. A lot to unpack but a really good starting point. One caveat: don’t use really strong magnets when testing the Hall sensor, as it will kill the sensor (yup, I did)
Didn't even know about the ESP32. Gotta order some, thanks for the guide! :)
No problem ;-)
Why has only scott replied here
wow
You only need timer interrupts when you need very very precise timing... In this case you can just use millis or micros to check how much time has passed and only execute certain code in specific intervals, since it doesn't really matter if it executes a few milliseconds later.
Use POST instead of GET
Hello! First, great video as always! To all who also try to work with the ESP32 and fail, when I tried with my chip the simpleWifiServer example, that did not work and the chip has constantly disconnected from my PC and reconnected when Wifibegin was running. This is because my PC has turned off the USB port because too high current flows. So if you have the same problem then connect an external power supply to the ESP32 and the problem is solved!
LG EK
Those videos are getting looonger 👌 love it 💜
Glad you like it
Thanks!
great scott! *Everyone report this fake account*
@@fede142857 ???
You can also use "plug and play" controll app like Blynk to wireless access to your projects.
Does it work if you are not connected to that wifi?
At first, I thinked, that he want to troll us with the name of his computer (2:32) but then I saw that this is the correct name on the list from his router (7:03)
haha :D
*thought
alex0kai o
KEK
One possible fix for the android could be to let the esp send a 204 status on every URL you specified with a function this should get rid of the error because 204 stands for "no content".
sending 404 on every URL would also work but will probably end in another error saying that the server couldn't find the requested data.
i don't know what client.flush() exactly does but i think giving a proper response header with 204 is a way more elegant way of doing things.
still nice addition to an already nice project ;D
thanks man. i was having anxiety because I promised this functionality to a client without even doing research... looks like I didn't need to after all ( except for your video, thanks n_n )
Good video. This is the way to study esp32 uC
Brilliant, you made me think that "why not just build an iot project with the esp"... I think I will start soon
I think that you could fix the error (message) by sending out a proper response from the esp whenever it gets a new get request. The method of the server instance is called "send".
Could you elaborate a bit please?
Love the ESP chips! Used it for my senior project! Cool video.
thank for your videos , people like you are the salt off this earth !
GreatScott is always the best!!!!
Very nice job. You don't give up easily.......thanks
This is why people love you
Thank you so much for this video, I can't follow many of your videos, but I love IoT and I have succesfully changed your videos idea to my project (controlling various relayswitches via an 433MHz transmitter and an NodeMCU)!
I don't know if someone already wrote that in comments but FastLed library has delay of it's own. You can't use arduino delay but you can use FastLed delay and it should work just fine. I has this problem with my matrix and FastLed delay helped. Sorry for grammar..
What would be really cool would be to add rfid receiver to the project so people can wear a little tag that is profiled to them specifically and so when they approach the panel it starts playing their favorite patterns, colors, etc. then someone could theoretically hang these in their hallway and when a user walks by it would synch to them. Even better would be if the rfid/nfc receiver could get the user info from the users phone as they walk by.
I'm new to these electronics...pls can esp32 be controlled through the internet from a place that is outside the WiFi reach say I travelled to another state but I need to control my device from where I am...can I still control the esp32 from my distant location?
Okay got it all sorted out in a couple of hours!
Great Scott!! What a genius!
You should make a tutorial about a 555 timer flyback converter or about wifi or bluetooth jammer.
I have enhanced my electric window blends to be remote controllable by esp8266 relais modules. I had to implement a way to send a few simple commands like up / down / stop / reboot and identify also. A HTTP Server is a lot of overkill to achieve this. Instead I send simple single character TCP-Messages to the esp8266, like "u", "d", "s" and so on. I also wrote an Android App to control the blends and a Java command line program that simulates presence while I'm on vacation. The Android IDE is fairly easy to use. No barrier for an intelligent fiddler like you are ;-)
Hi Jeremy...I wondered if you could make wireless system for guitar. I've been suffering with this project for over a year.. It doesn't have to be super high range ( but about 10m is minimum ?!) and obviously It can't have delay.
Thanks,
Tomas
I can put it on my to do list
That'd be great... I'm sure you have plenty of projects :).
I’d also be very interested in something like this. It a great idea!
I am intrested in that too :D
Who's Jeremy????
Friend, today at 8:30 pm, I'm going to post a short video about a project I set up for the new electronics magazine, the project was saved for a few years and was almost completely finished, I'm going to do a restoration soon, clean up and finish what I missed to finish it. In the video I will only present what was set up at the time, the way it was until today.
Original Language Português Brazil
Dear GreatScott, Thanks a lot for your nice video. I'm teaching code and IoT to kids and I use ScratchX, AppInventor and ESP8266 and I've developed many projects with them. And you inspired me a lot of ideas to share with the kids.
For the error notification you got on the app, just add an empty C-Shaped block from Screen object "When Screen error Occurred" : all notifications will disappear
Thank, very usefull for my project. Can you create tutorial or some project using raspberry Pi 3 ?
Cool Video as always. It really helped me out. I created an App to control a motor that opens my curtains, using the ESP32. I couldn't have done it without your help!!!. (Well maybe I could, but it would have taken A LOT longer). Thank You!!!
Thanks! I was looking for a guide to work with my project, and your video helped a lot
Oh wow, shades of the Lost In Space Computer!! I love it, one of my favorite series when I was a boy growing up in South Dakota! Wonderful information on how to get the little ESP32 running as well. I have several of them at home in South Dakota, when we return from our winter quarters that consist of our 35 foot Class A motor Home. (There may be one in my junk bag, I will have to check now I am excited!)
After watching this recently im not sure if you had your color order set wrong WS2812B is GRB AFAIK and also Fast Led has its own delay function I believe :) so if you havent checked it out recently it might be worth a try ! I use a NodeMCU with my WS2812B 240 pixel strip and it was the perfect addition !
As always, excellent work and video
Brilliant tutorial. Really inspires me to do more with electronics!
Awesome :-)
@@greatscottlab yo
I've been tryiong to figure out what the WiFi module does. Now I know that at least it can talk HTTP, which is a big help.
Please try NodeMCU (board) next time you use ESP32
I've been struggling with the ESP32 and LED driver libs. Good to know it wasn't just me :)
Hey greatscott can you make a video about how to setup a ddwrt repeater bridge?
Taking this, adding some speakers at the corners and making the pattern sync with the music. Would be so cool :D
Hello, there is a newer version of MIT app inventor called Thinkable. It's still free and from MIT, but with a few more commands
This video is great and super helpful just like all your others! Thanks man. 🤙
Nice video. Can you please make a video on how to show a sensor analog reading by using this nodemcu with an arduino board inside a websites or an app.
ESP32 rocks! Great video Pascal
wow! that ESP32 Board sounds awesome :D
ESP 8266 are still very great chips, even if you don’t care about using it for anything in particular they are great fun to mess around with and host servers. Plus they are pretty cheap (node mcus esp8266s are around 13 dollars for 3 chips)
THE ESP32 IS F****C AWESOME
I did a similar project to open a garage door with my phone.
But I used a app called http request widget. Works great and let's you put a widget right on the home screen.
Scott, you really are the Great Scott! Thanks.
Your videos really help me out with my own projects. I didn't know anything about the ESP32, but now I can modify some of my past projects. Thank you!
Please make a vedio on power amplifire or mixer pre amp circuit...
You could also use the blynk app instead of making your own app. The Blynk app is available on both Android and IOS
Would you do a video on how to do the same for a low power approach with zigbee or zwave?
Is it possible to create switchable outlets using this thing?
+Das OSi Sure
Das OSi yes, of course, but ESP 8266 - ESP01 would be better, cause it have enough GPIOs and is a lot cheaper and smaller
I would be interested in such an project, I hate the fact that everything that's "smart" needs to be in the cloud. LAN ONLY!
thanks =)
Have alook at the SonOff. They are cheap and include an ESP8266 that you can flash with many different firmware. Check the SuperHouseTV channel.
You might find it easier to have the ESP32 run all the networking and then talk to an Arduino over I2C. This way I got the best of both worlds - I really didn't want to lose the FastLED functionality having spent hours generating and amending the matrix based animations, which I had to do because I'm using 4 of the 8x8 pixel panels.
Hi Robert, can you point me to an example using the i2c communication between esp8266 and arduino? I tried serial communication (usind an esp12 and a teensy lc) but after some time the connection seem to stop working...
I got all my information from here:
www.instructables.com/id/I2C-between-Arduinos/
It's not specifically about ESP-8266 or ESP-32 but the process is pretty much the same for those devices.
Remember, however, to check the voltages - most Arduinos are 5v whereas the ESP devices are 3.3v - you'll need some form of voltage shifter but there's a lot to choose from on EBay and Ali Express.
Hope this helps.
Thanks - that already helped me. Luckily the Teensy already is a 3,3V device.
Your windows profile name is "IDONTKNOW"..
it's ficeto ;)
Wtf that's me
OZZY RULES
Hi great Scott could you make a synthesizer with the 555 or an other ic?
Anne Marie Miguel I would be interested in this video too.
See The Ben Heck Atari Junk Keyboard project and then 8-Bit Keys playing it.
Can you do a vu meter in a digital led strip
that's a great idea!
Awsome video, but I forgot why I wanted an arduino with wifi build in. :D
I built a 16x16 RGB board and have been using a RPI to power it. I think it's a nice solution because I can run code that pulls from weather underground and display it along with other fun animations. Definitely not the cheapest solution though.
GREAT VIDEO sir.... I was thinking is it possible to use Nextion display to enter WiFi credentials without hard coding or without creating a Soft AP
was literaly just looking for a video like this, thanks man love ur vids
Can you do more of these? I like seeing how to develop apps that can control projects like this
If you create the interface for the browser through typing html code in arduino ide then to u can get rid of the error message since you actually have a "webpage" to browse
So please tell which hot air gun and prefboard can I buy and when you will do QA and give away
Bro . As usual great video. Who is here dor 30 views. First time:))
Very good skills GS. Very nice work
Wow u have a great knowledge of electronic
I like the APA102 library, which uses its own protocol running over SPI. It's pretty easy to implement a low level control yourself using that. Also works better with hardware or operating systems that aren't fully real-time.
Really, really nice, man. :)
Tons of good projects out there to that board. :)
Its rare to see a samsung with million subscribed youtuber
Add in tasker or macrodroid and a relay module to the mix and you can create you're self a home automation..
HELLO Great Scott I'm wonder if you can make a video about if the transformer from 16.4ft led strips can handle 6 or more 16.4ft led strips
This is the led strip; 16.4ft 5050 RGB LED Flexible Strip Light DC 12V Kit 5M 300 LEDs 5050 SMD IP65 Waterproof Color Changing LED Rope Light Strips & 12V 5A Power Adapter & 44Key IR Remote Controller
Scott can you try the same idea with a led cub?
nice work
thinking about the vast implementation it can have :D
Scott,
I am new to electronics. Cwn you suggest any reading material for begineers.
Nice project, love the design
Another GREAT video, thanks.
Would the ESP32 be powerfull enough to replace the Arduino completly? Do you plan to improve this project further? I would love to see you do more with this little MC.
+theSimonking Yes and No, sorry.
No like no further improvments on this project or no further stm32 projects?
This works if your willing to recompile everytime you want to connect to a new WiFi network. However, it would be much better if it could create an adhoc network that you connect to where you can input network connection settings.
Great video. Can you make one on respberry pi ??
I can put it on my to do list
GreatScott! Thank you sir
when working with an ESP appinventor / cordova is ur best friend ;)
Good, as usual, but can you make more detailed videos about utilizing ESP32 in different projects ? Thanks in advance ! )
i love all the videos and find it to be allot of help with my electronics basics..request- robotic arm or LIDAR sensor
Please create more videos with ESP32. Maybe internet of things, or something like this.
I think that you should make a video on how to use the Blynk app to upload pictures and gif's to a led matrix once they add the feature to the app
Can you make a video about making an arduino charger for lipo battery's?
+Guillaume Deplancke I put it on my to do list
I know this is an older video and surely someone has said it, but, just in case they haven't: You should be using POST and not GET request in this instance. You're trying to set a value on the server, not get data from the server. I'm not sure how to handle the code on the arduino to handle post requests or I wouldn't be here right now lol; but, it should be about the same as what you have.
Thanks for the review... i will buy it and see what i can do !!stay creative
You should do a playlist related to the 10x10 matrix.