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onecircuit
Australia
เข้าร่วมเมื่อ 7 ก.ค. 2019
Over the last few years I have overzealously bought a heap of electronic components for projects. Some projects have been finished, but there are way too many buckets of boxes of compartments filled with lovely OpAmps, Transistors, Logic Chips, Modules, Sensors and a multitude of other late night acquisitions which need to be used in some way.
They could sit and I guess I could be quite happy over the next few years admiring their dormancy OR I could get inspired and make one circuit a week to demonstrate their utility or otherwise.
So week by week I will attempt to document, video, draw, link, etc., each electronic creation in an effort to help me (and others) remember how to use some of this stuff (maybe to help prevent too much magic smoke escaping). I'm not an expert so if you spot anything that looks a bit dodgy - please let me know.
They could sit and I guess I could be quite happy over the next few years admiring their dormancy OR I could get inspired and make one circuit a week to demonstrate their utility or otherwise.
So week by week I will attempt to document, video, draw, link, etc., each electronic creation in an effort to help me (and others) remember how to use some of this stuff (maybe to help prevent too much magic smoke escaping). I'm not an expert so if you spot anything that looks a bit dodgy - please let me know.
Mailbag #44 - lovely modules!
Each video I will grab a random electronic component from the vault and build a circuit - this week I look at the latest batch of interesting packages from AliExpress.
More info at onecircuit.blogspot.com/2024/10/0000-0000-1111-0101.html
www.tindie.com/stores/bovineck
More info at onecircuit.blogspot.com/2024/10/0000-0000-1111-0101.html
www.tindie.com/stores/bovineck
มุมมอง: 1 780
วีดีโอ
Re-mapping the pins on a CH32v003
มุมมอง 33216 ชั่วโมงที่ผ่านมา
Each video I will grab a random electronic component from the vault and build a circuit - this week I look at how to untangle a clash between Serial Communication and the "One-Wire" SWIO programming protocols on the SOP8 CH32v003 - 5 options available on the menu, what will you choose? More info at onecircuit.blogspot.com/2024/10/0000-0000-1111-0100.html www.tindie.com/stores/bovineck
AO3400 Super Transistor!
มุมมอง 2.1K14 วันที่ผ่านมา
Each video I will grab a random electronic component from the vault and build a circuit - this week I look at a little SMD Mosfet Transistor that can apparently handle 30V and 5A?? More info at onecircuit.blogspot.com/2024/09/0000-0000-1111-0011.html www.tindie.com/stores/bovineck
Mailbag #43 - featuring a Total Dissolved Solids Module and other tasty stuff!
มุมมอง 64021 วันที่ผ่านมา
Each video I will grab a random electronic component from the vault and build a circuit - this week I look at a bunch of products fresh off the boat. A MAX1044 voltage converter is a highlight - enjoy! More info at onecircuit.blogspot.com/2024/09/0000-0000-1111-0010.html www.tindie.com/stores/bovineck
Easily unbrick your CH32v003 using the free minichlink program
มุมมอง 1.2Kหลายเดือนก่อน
Each video I will grab a random electronic component from the vault and build a circuit - this week I look at the 8-pin version of the CH32v003 chip again. I deliberately "brick" it - and then unbrick it instead of throwing it away! More info at: onecircuit.blogspot.com github.com/cnlohr/ch32v003fun/tree/master/minichlink www.tindie.com/stores/bovineck
Unboxing an Orange Pi 3B, rolling our own OS and installation direct to an EMMC
มุมมอง 340หลายเดือนก่อน
Each video I will grab a random electronic component from the vault and build a circuit - this week I look at a lovely bit of kit from Shenzhen Xunlong Software CO. A great combo of excellent features, speed and price. I unpack, make my own OS and install direct to a 64Gb EMMC. More info at onecircuit.blogspot.com/2024/09/0000-0000-1111-0000.html www.tindie.com/stores/bovineck
CH32v003 bare on a breadboard - will it blink and fade? (yes)
มุมมอง 628หลายเดือนก่อน
Each video I will grab a random electronic component from the vault and build a circuit - this week I look at the CH32v003 - last video (Mailbag #42) we fired up the module version, but this time we're going bare chip style like in the old days... Here are your links: github.com/openwch/arduino_core_ch32 wchofficialstore.aliexpress.com/store/1100367542 onecircuit.blogspot.com/2024/08/0000-0000-...
Mailbag #42 featuring C̶a̶r̶d̶i̶ ̶B̶ CH32v003 and a Raspberry Pi 5
มุมมอง 7832 หลายเดือนก่อน
Each video I will grab a random electronic component from the vault and build a circuit - this week I look at some lovely goods from overseas, plus one mad experience with a local supplier. The RPi 5 makes an appearance, as does a swag of CH32v003 modules and their WCH-Link programmer Breadboard Jumper maker: www.thingiverse.com/thing:5428701 More info at onecircuit.blogspot.com/2024/08/0000-00...
Audio Eggs - a little bit of amplified ear-pod work
มุมมอง 3962 หลายเดือนก่อน
Each video I will grab a random electronic component from the vault and build a circuit - this week I look at a C-H-E-A-P amp that works great (after some fiddling about) and a couple of naughty ear pods that need cleaning (maybe) More info at onecircuit.blogspot.com/2024/07/0000-0000-1110-1101.html www.tindie.com/stores/bovineck
Mailbag #41 - sure it's electronics, but that guy drones on a bit!
มุมมอง 5172 หลายเดือนก่อน
Each video I will grab a random electronic component from the vault and build a circuit - this week I look at recent arrivals from the North - including some drone accessories! More info at onecircuit.blogspot.com/2024/07/0000-0000-1110-1100.html www.tindie.com/stores/bovineck
Do bees like prime numbers? Let's use a turtle(?) to find out!
มุมมอง 1722 หลายเดือนก่อน
This week is a bit of a departure as I lean into a holiday project on prime numbers. I know, weird eh? All the code on the link below. onecircuit.blogspot.com/2024/07/0000-0000-1110-1011.html
Replacing a NiMH Battery with Super Capacitor (Part II)
มุมมอง 2812 หลายเดือนก่อน
Each video I will grab a random electronic component from the vault and build a circuit - this week I look at a second "impossible" stage of changing out a NiMH rechargeable battery for a super capacitor. This is stage three of the impossible trio - can the cap keep candling all night? More info at onecircuit.blogspot.com/2024/07/0000-0000-1110-1010.html www.tindie.com/stores/bovineck
One impossible thing
มุมมอง 8703 หลายเดือนก่อน
Each video I will grab a random electronic component from the vault and build a circuit - this week I look at a wacky 16-step comparator buried in the PFS154 - it also acts as an interrupt? Note - due to comment below from Ivolol (pinned) I have changed and updated the code on the blog below. Thanks mate! Champion! More info at onecircuit.blogspot.com/2024/06/0000-0000-1110-1001.html www.tindie...
Mailbag #40 - generosity in solid form
มุมมอง 4763 หลายเดือนก่อน
Each video I will grab a random electronic component from the vault and build a circuit - this week I look at a big box of joy sent from subscriber Steve including a magnificent digital oscilloscope. More info at onecircuit.blogspot.com/2024/06/0000-0000-1110-1000.html www.tindie.com/stores/bovineck
Mailbag #39 - Lovely stuff including pretty cool RISC-V chips
มุมมอง 1.4K4 หลายเดือนก่อน
Each video I will grab a random electronic component from the vault and build a circuit - this week I look at a lovely selection of goods, including some cheap but powerful microcontrollers from Nanjing Qinheng Microelectronics More info at onecircuit.blogspot.com/2024/05/0000-0000-1110-0111.html www.tindie.com/stores/bovineck
8 Pin Microcontroller Wars: ATtiny13, PMS150C, PFS154, PFS173 and CH32V003
มุมมอง 1.8K5 หลายเดือนก่อน
8 Pin Microcontroller Wars: ATtiny13, PMS150C, PFS154, PFS173 and CH32V003
Is it a Raspberry Pi or an Arduino Uno??
มุมมอง 6095 หลายเดือนก่อน
Is it a Raspberry Pi or an Arduino Uno??
A dodgy function generator vs. a dodgy oscilloscope
มุมมอง 2526 หลายเดือนก่อน
A dodgy function generator vs. a dodgy oscilloscope
Mailbag #38 - Bluetooth clothing, Teddy Bears and Torches
มุมมอง 3467 หลายเดือนก่อน
Mailbag #38 - Bluetooth clothing, Teddy Bears and Torches
Using a soft start circuit on two fans for solder fume extraction.
มุมมอง 2.7K7 หลายเดือนก่อน
Using a soft start circuit on two fans for solder fume extraction.
TDA1308 amplifier and microphone module
มุมมอง 5258 หลายเดือนก่อน
TDA1308 amplifier and microphone module
Hot Software? Your choice of Armbian image matters!
มุมมอง 3559 หลายเดือนก่อน
Hot Software? Your choice of Armbian image matters!
Lunar Landing like it's 1978 - a KimUno game
มุมมอง 1929 หลายเดือนก่อน
Lunar Landing like it's 1978 - a KimUno game
Outback Remote ESP32 Over The Air (OTA) Project
มุมมอง 75910 หลายเดือนก่อน
Outback Remote ESP32 Over The Air (OTA) Project
Mailbag #35 - a bundle of electronicals!
มุมมอง 1K11 หลายเดือนก่อน
Mailbag #35 - a bundle of electronicals!
English England just found you're you tube videos thanking you most kindly
You’re welcome! 👍😀
Plug in timers have come a long way since I got mine with the little plastic tabs around the rotating edge. LOL.
Marvin appreciates his electronic help! 👍😀
@@onecircuit-as Toasty kitty. 😸
Measuring the capacity of supercats might make a nice video.
True. Plug in, wait awhile! 👍😀
Your melted breadboard would trigger people's trypophobia lol - post it to your socials!
A stern warning about those hot guns! 👍😀
The ESP32-S2 only has one core, the ESP32-S3 is dual core. The ESP32-C3 is the cheap version with a different core.
Core Electronics === RPI I guessed it. 😆
Funny procedures! 🤷🏻♂️
Quick helper: it is AO like the o hello :D Anyway I really like mailbags, so keep 'm coming!
Oh yeah I was watching (after upload of course) and picked that up too! 🫣
Lmao @ hot air gun on bread board. Screw ups = experience.
Have you noticed how torches these days have flashing red and blue lights, which is illegal here in Australia.
Really! Interesting! Must strap one to the car…
@@onecircuit-as Lol ,you would too but I would be be a bit worried to to do so
I'm a bit surprised that you didn't make the timer for the cat-hot-pad from an ESP and a MOSFET.
Now there’s an idea! 👍😀
"... We're very responsible with our late night shopping ..." Instantly relatable.
😬
And we NEVER shop when we're drunk.
@@frankowalker4662 Er...
I'm glad I'm not the only one
That round display looks very interesting.
Yes I'll be hooking it up soon to see if it can be a toddlers clock! 👍😀
Always good.👍 👍 👍 👍
Thank you 👍
Where do you buy the super capacitor? Mouser minimum quantity is 100!
AliExpress for the win: a.aliexpress.com/_mtiqtk0
CH32X035 is quite nice. Only costs a little bit more than the 003, but much more capacity.
Yes, looking forward to exploring it! 👍😀
WCH make great chips in general. For cheap :)
They have excellent customer service too.
@@brettb.345 Super packaging!
Could you build me a HEX fuzz circuit such as the one Inspired by Craig Anderton and something about improving the HEX function, can this be made into a box with six outputs?
Done! www.tonepad.com/getFile.asp?id=119 (google to the rescue)
@@onecircuit-as I saved the page, but is there a HEX distortion unit already built like the 6 Apeal? With SIX outputs?
@@onecircuit-as I really appreciate this information however I'm tech illiterate, do you build these for customers? THANKS
I don’t build these, would make a nice project for you, the CD4049 is readily available through AliExpress. 👍
@@onecircuit-as OK thanks
It would be nice to have a variant of the CH32v003 in the Arduino IDE with this Pins swapped like you showed and also the register manipulation done in the serial.begin method in the serial class-
Grand idea! I’ll look into that - with the versatility comes a little confusion. 🤷🏻♂️👍
The data sheet and reference manual are essential for this chip.
They are pretty dense reading! 👍😀
Nice to see that there are ways to fix frustrating problems if you open the box and dig in to look.
It’s a pretty novel chip that’s fer sure! 😳
Just what I was looking for thanks!
The BS170/2N7000 were really aimed at 5V gate drive switching applications, so their maximum gate threshold can be problematic unless one is hand testing and binning for lower threshold specimens. That combined with their lower transconductance can be problematic in 3.3V circuits - especially at colder temperatures.
Yes I think the AO series looks like the goods for IoT logic level applications. 👍😀
@@onecircuit-as I thought so too, so 10 years ago I bought factory sealed 3000 each reels of AO3400A and its complement AO3401A. They only cost 4c each back then.
@@ChrisSmith-tc4df Wow good pickup - I'm happy if I find 100 pcs relatively cheap!
I'd have the fan blowing into the case. But the size of those components gets me. I've read books with bigger full stops.
I lost a few 603s along the way due to breathing. The fan is now blowing into the case, plus I installed a flyback diode and shortened the leads. 👍😀
@@onecircuit-as One sneeze and your project is gone. LOL Nice one. I did'nt think of the back EMF diode. 👍
You can buy them in SOT-23 format which is much easier to solder.
@@Steve_Coates With my eyesight and tremors, SMD is just a myth. LOL.
@@frankowalker4662 Join the club although on good days I can manage SOT-23.
Fan should indeed be blowing on the heat sink :) Also - I’m happy to see it didn’t fry the GPIO when you hooked it straight to it in the beginning. I don’t think a Raspberry Pi would’ve been that forgiving with trying that much current. The internal reverse diode might be enough for back EMF?
The fan is now blowing back into the case and I did install a flyback diode in the final version. 👍😀
It has all the right things to run a pulse laser except the watts is to low. If I use an arduino to create a PWM , need 75w 12v 2.5-30a . Any ideas how to drive a 75w 905nm pulse laser diode with an arduino ? Pulse Drvers cost upward of $1500.
Use something like this circuit to trigger a larger fet like the IRFZ44?
@@onecircuit-as I will look at the data. I freaked myself out and got the laser diode to light up with a PWM and then I fried the PWM module. I tried with a Arduino and found that it is easy to use the simple blink code but I couldn’t get any light using a TIP31c. I might have killed the laser diode ? 4 days and nights of studying now , trying to get a 75w 12.8v 30a 100ns max pwm . I thought when I bought the diode for $20 it would be as easy as connecting to a buck converter not realising it needed a PWM. Thankyou for your quick reply.
Good luck with the project, sounds like good fun! 👍😀
@@onecircuit-as I want to know how cheap I can drive a pulse laser diode ? The $2000 drivers look like cheap circuits so why are they so expensive ?
🤷🏻♂️ This is often the case with electronics. Commercial WiFi extender AU$60. ESP8266 version? AU$1.50 😂
Hi, yes fan should blow onto heat sinks. The air flow when sucking comes via the least resistance path and so although will flow some air over heat sinks, most air movement will travel from sideways into the fan (as path of least resistance). Pushing the air onto the heat sinks will provide much moor cooling capacity as it will force air across the surface of the heat sink.
Thanks Paul my thoughts as well! 👍😀
hello, you need a back emf diode (reverse) between the +5v and the drain in order to protect the AO3400 from high voltage while turning off the fan
@@amitmeyuhas6216 Good point - I’ll add it for the final version! 👍😀
Doesn't the mosfet body diode do that?
@@ColinMcCormack The body diode allows current to flow in the direction from the ground rail to the drain of the mosfet. That's not what will happen when the mosfet turns off and the fan is still running. In that case, the fan motor negative lead will become more positive than the positive rail. A diode across the fan will prevent this voltage from rising significantly. A 1N4140 of 1N4001 would be fine.
Diode installed (1N4001], leads shortened, all of it fits comfortably in the case.👍😀
Always good.👍 👍 👍 👍
Thank you 👍😀
Have you ever used an Airpax temp-activated passive switch? They have models that will close at 40C/50C/60C, etc.
Interesting! I’ll look into that - thanks! 👍😀
I used this transistor for a 10 watt led. It's able to strobe at like 1mhz.
Amazing little guy! 😮
Those Alpha-Omega 34xx series mosfets are ubiquitous!
Many thanks for the time-saving idiot's guide to these things.They'd be perfect for my project,but as yet there's no RCSwitch library for them.
Interesting! I'm not familiar with those libraries but I'll take a look. It might be just a case of assigning the correct pins for this chip in the *.h files.
@@onecircuit-as There's a free IDE called Embeetle for RISC V chips;it can be used to program the CH32003 and comes with quite a few examples.
Excellent I’ll check it out, I have a feeling it’ll be a great community as it gains momentum. 👍😀
Nicely done.
Thank you. I’m thinking about doing a follow up showing how it’s done for a particular project. 👍😀
Never heard of this channel before, just happened across it. But when I saw the Autobot badge pop up on the tester screen, I knew these were my people.
Welcome! 👍😀
Excellent video! Explains everything from A to Z, very comprehensive.
Glad you enjoyed it! 👍😀
Excellent video! Explains everything from A to Z, very comprehensive.
Much appreciated! 👍😀
Always good.👍 👍 👍 👍
Thank you 👍
When are you going to build a OneCircuit Collider?
Can't be far off...
@onecircuit-as Lol, it would be bloody cool, hey.
didn't realize LORA modules had got that cheap. dammit, man, you've gone and made me but stuff I don;t know how to use again...
It's payback time buddy. 😉
Extra yellow, lol😅
I’ve ordered some yellllow ones for comparison. 👍😀
Those power IC's look like fun.
Amazing little fellas, I started thinking straight away about the current limitations and how to beat them. 👍😀
Nice haul, always best to have lots of LEDs
True! 👍😀
Brilliant - I've bought 50 of these little puppies (and programmer etc.). Still on the slow boat from China, but great to know!
Unraveling UART is next on the list. 👍😀
Yup, have made a HVSP for my bricked tiny85s. I wanna see if you can get those serial print commands to work through the debug wire. Sure looks fun playing with those. 10 cent MCU, good for most anything.
UART here I come.👍😀
Always good.👍 👍 👍 👍
I had similar problems with a CH32X035 from the factory. Set read unprotect twice via minichlink did the trick for me.
Great stuff as always!
Thanks again!
Always good.👍 👍 👍 👍
Always good.👍 👍 👍 👍
Thank you 👍😀
How GPIO situation with this config? Will I2C work?
Usually they are fully compatible with RPi - there are the same number of GPIOs in the same config - and although I2C is available, I haven't tried it! I use mine for higher duties such as NAS and PiHole. 👍😀
Excelent video. It would be great to post a video showing if the setup hold up or not after many months running. I'm telling you this because I'm not sure if these Orange Pi's as are sturdy as the Raspis, at least that is my impression but maybe I'm wrong.
My Orange Pi 3 LTS has been up 24hrs/7days for months (apart from power outages) as both NAS and Pi-hole. I’ve never had an issue with these SBCs, but I understand the hesitation. More of an issue than hardware wobbles is lack OS support and community support, compared to such a rich vein in the RaspiPi world. I would be hesitant to use the Orange Pi suppliers OS images. 😬
very informative. I like the EMMC to SD card adapter idea.
A cool idea, skip the SD card entirely. 👍😀