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My pleasure :) I am happy this repair video is helpful. Thanks for the feedback!

Nice, I will have a look. Are you happy with how it performs?

No, it is suitable for detecting specific dangerous gases but not measuring exact concentration.

@@LeonAnavi so if I need to measure only the concentration of oxygen inside various ventilated rooms what sensors can I use ?? Please reply

Can I use AO-03 for measuring the concentration of oxygen inside the room using Arduino nano ??? Please reply

I recommend you to have a look at Grove - Oxygen Sensor Pro(GGC2330-O2)

@@LeonAnavi it's currently unavailable could u suggest me any other oxygen sensor

Yes, absolutely. I am using a couple of these keyboards on two of computers. Actually, I am writhing this reply from the same keyboard :)

Thank you :) Glad you enjoyed it!

Thank you! Glad you like the gadget and the video :)

Yes, it is just a low-cost sensor that works as a detector.

This device was released on the market by the now-defunct company Next Thing Co. (NTC) so it is not officially supported. I haven't played with it in a few years so I am not sure what the software status. The device is with Allwinner R8 SoC which is a repackaged version of the A13. So eventually you go down the path of porting/boot modern Debian-based distro on it and install firefox. However, it a long and advanced path. On top of that by today's standards A13(R8) is quite restrained CPU and probably any graphical web browser would run very slowly.

Thank you for your feedback. I am glad you liked the video.

This a very old tablet with a very old Android version. I recommend to search for tutorials for resetting password specifically for Android 4.4.

Yes, you will definitely need more powerful PSU for such a GPU. My prodesk came with power supply model L70043-002. I can't recommend a particular model for an upgrade. However, I recommend you to carefully check the form factor and dimensions of the new power supply and to make sure that it will fit within the case of the prodesk.

First you see the printed circuit board from the back of a floppy drive from Amiga 500. This is just for a comparison with OpenFlops. Have a look at my longer video about OpenFlops to learn more about it: czcams.com/video/bPI8j_0X3Dc/video.html

Well, it is just a 2nd cheap drive for storage :)

Yes, it is an analog stick and the firmware in joystick mode takes advantage of partially setting a direction (aka less than full 100%). This is how it is used for the demo in the video on Ubuntu 24.04 LTS.

AXP209 is the power management unit on this board. It is commonly used on single board computers with Allwinner A10 and A20. You can learn more about it at: linux-sunxi.org/AXP209

Thank you for your in-depth comment. ANAVI Dev Mic is an open source hardware microphone that I have designed in KiCad. The firmware on it is also open source and based on the "Microphone library for Pico". Right now there is a crowdfunding campaign going on for it at Crowd Supply so I wanted to showcase its capabilities for speech recognition. I am even considering a new hardware version of the microphone by upgrading it from RP2040 to RP2350 because this will allow implementation of real-time ML noise suppression within the microphone's firmware. As you can see this video proves ANAVI Dev Mic is a good fit for this task. Of course the same setup can be achieved with another microphone too (although a minor modification of the Pyrhon3 script will be required). If you are curious to learn more about ANAVI Dev Mic visit: www.crowdsupply.com/anavi-technology/anavi-dev-mic

@@LeonAnavi Thank you for responding. I didn't realize this was your project, although you say it at the beginning of the video.I guess I missed that the first time. I hope you achieve your crowdfunding target. More open hardware is always helpful. Do you have any recommendations for dealing with echo cancellation on the raspberry pi when using this microphone?

Although, this particular demonstration from the video doesn't apply any additional effects for echo cancellation, in general there are two ways to handle it: 1. In the software running on the Raspberry Pi (or whatever computer is used) 2. In the firmware of the microphone. Here comes the big advantage that ANAVI Dev Mic is open source hardware built around Raspberry Pi RP2040 microcontroller so you have the freedom to modify, recompile and upload a new version of the firmware to the microphone. The default firmware is based on "Microphone Library for Pico" and relies on the Raspberry Pi Pico C/C++ SDK.

@@LeonAnavi Ah, I think I understand now. This is not just a microphone, it's a whole programmable microcontroller with a microphone so preprocessing can be done on-device. Correct? I'd love to put the echo cancellation code directly on the microphone microcontroller, but it seems like I'd have to hardwire a monitor signal from the speaker to the RP2040, and then use the right algorithm to cancel the signals depending on distance from each of the microphones. If I moved the speaker in relation to the microphone I would have to readjust, but I could probably do that programmatically. Do you know if anyone has done anything like that? It does seem like this device should be able to take care of signal strength based VAD on device, which could be helpful and take a little processing load off of the main device. Thank you.

Yes, ANAVI Dev Mic is built around XIAO module with the Raspberry Pi RP2040 microcontroller. The same microcontroller is used in the popular development board Raspberry Pi Pico. The firmware is based on the open source "Microphone library for Pico" which is built with the C/C++ SDK for Raspberry Pi Pico. So as the name suggest this is developer friendly microphone as people can modify and flash new versions of the firmware. For example, ML algorithms like RNNoise can be applied directly as part of the firmware although for RNNoise it is recommended to use more powerful microcontroller like RP2350 (for Pico 2) and in future eventually I might launch Dev Mic 2 with such capabilities. You can learn more about RNNoise at the following links: www.raspberrypi.com/news/real-time-ml-audio-noise-suppression-on-raspberry-pi-pico-2/ jmvalin.ca/demo/rnnoise/

Congrats for your new keyboard! Hope it will serve you well through the years. I am also a Linux user and I totally agree with you: it is bad that there is a lack of Linux support for their app.

Thank you for watching the video! OpenAI Whisper also supports French but I have no idea if it as good as in English. Let me know if you decide to try it :)

@@LeonAnavi ok Leon when i have a moment :)

Thanks

Благодаря за топлите думи. Поздрави от Пловдив :)

Thank you for the feedback. I'm glad you find the video helpful :)

Thank you!

Yes, absolutely! W850io network module can also be connected to the SPI pins on the 40 pin header of Raspberry Pi Zero.

Thank you 😊

Sorry, I don't get it. Could you please paraphrase the question?

@@LeonAnavi its locked to a brand or to a phone tried modifying it?

@@bhootpurvmanusya yes, esim.me supports a list of brands. Depending your eSIM.me card type there is a license transfer fee to use the same card with the mobile app on another smartphone.

Yes, actually, after these 3 I made a couple of new keyboards: ANAVI Arrows and ANAVI Macro Pad 12 (this one is bigger than 10). I have in mind making a version with about 20-25 keys like the model you mentioned.

@LeonAnavi i had a deep dive into your youtube, your making some great stuff! Ive had the koolertron for about 5 years and use it everyday, perfect form factor.

@@GTD22 thank you for taking the time to have a look at the channel! Do you think koolertron would be better with 24 keys instead of 23? The large button on the last row seems a bit awkward (but may be I am missing the point in certain use cases).

@LeonAnavi no problem, thanks for the content. there are already a few examples of the 24 key models (heaps on alibaba and the "no faff macropad") I use it for gaming, so the 2u key is a well proportioned spacebar (would be even better with stabiliser) But i could also see it being used as a modifier key as your thumb always rests there But at the end of the day it is your product so the decision is all yours

Thank you! I am a Linux user for almost 2 decades so pretty much all my videos feature demonstrations on Linux distributions. My newer videos about similar topics are for XIAO ESP modules and Raspberry Pi Pico.

Thank you! Cheers!

The default sample rate is 16 kHz but it can be eventually changed to higher. The firmware on the microphone is based on the open source "Microphone Library for Pico" which uses the PIO on Raspberry Pi RP2040. Here is a discussion in GitHub with details about the the maximum sample rate: github.com/ArmDeveloperEcosystem/microphone-library-for-pico/issues/20

Yes, sure, the sound of the promo video has been recorded with ANAVI Dev Mic and slightly processed with Audacity to reduce the environmental noise. Have a look at it and listen to the sound: czcams.com/video/A333_QlfafA/video.html

The Xbox Adaptive Controller features two USB-A 2.0 ports, one on each side. Each of these ports supports USB HID devices. You can plug ANAVI Handle in them and configure appropriate mode in the ANAVI Handle firmware. Unfortunately I don't have Xbox Adaptive Controller so I cannot try this out right now.

Yes, you can have a look at the OE4T: OpenEmbedded/Yocto Project community support for NVIDIA Tegra (Jetson) platforms using L4T and JetPack components. Here are the git repositories in GitHub, probably the most notable is meta-tegra: github.com/OE4T

My pleasure! The video is longer than initially planned even though I didn't go into details about the I2C communication with CYPD3177.

No, according to the technical data I saw the supported and recommended input voltage is no more than 23V.

Do you still use it? I bought this speaker as a second hand from a local market. It was dirt cheap. Honestly, I don't use it but it was a good fit for the simple demo in this video.

@@LeonAnavi I don't have it now

@@usmanumer9871 btw today I published a new video about USB-C Power Delivery (PD) for voltages higher than 5V DC. I am still experimenting with various PD sink chips. Eventually, in distant future I might convert a similar old speaker to a USB-C powered device :)

@@LeonAnavi nice idea

That's interesting! Thanks for sharing. I will have a look. However, Seeed Studio has a proven as a stable manufacturer and supplier over the years so I prefer and recommend using the XIAO modules.

Yes, this is the on-board antenna. GPIO14 is used to select between using the built-in antenna or an external antenna.

SEL jumpers are for boot selection and MO is for Motor On. JC jumper is required as part of the setup for emulating the 2.8-inch "Quick Disk" drive, used in synthesizers made by Akai, Korg and Roland: github.com/keirf/FlashFloppy/wiki/Quick-Disk

It might be. I guess we will see for sure when someone does a tear-down after 14th August. I read rumors from a couple of different sources Google TV streamer will be with MediaTek MT8696.

Yes, it has, have a look at the details here: wiki.seeedstudio.com/xiao_esp32c6_getting_started/#battery-usage

You will need to disassemble the keyboard and do a hardware repair which most probably will require the mechanical switch. Considering that the N is in the middle of the keyboard, it might be a PCB or a solder joint issue because if you often hit the keyboard very hard it bends most in the middle.

@@LeonAnavi thank you 🤝🏻👍🏻

yes, in general, with some additional configurations depending on the exact needs and setup.

@@LeonAnavi oh, do u have a link for setup or example ? i research so much but no working.

@@tb.4276 depends on what exactly you are trying to achieve with your rpi0 setup, here are some useful notes and guides: gist.github.com/gbaman/50b6cca61dd1c3f88f41

Yes, the 2.54mm pads underneath the RTC battery connector allow you to take "Pimoroni GPIO Hammer Header (Solderless) - Male", cut just 2 pins and use them (without soldering).

@@LeonAnavi thanks!

Yes, with the ANAVI Handle and the Adafruit CircuitPython library you can read acceleration values from the gyroscope inside the nunchuck controller. Here is a simple example how to do it: github.com/adafruit/Adafruit_CircuitPython_Nunchuk/blob/main/examples/nunchuk_simpletest.py This is actually a very good question and probably we should include in the FAQ section of the user's manual for ANAVI Handle.

Thank you for your feedback, thats great news for anyone that wants to develop games with using the nunchuck as the primary controller

@@dpmilligan4487 do you know any PC and/or open source games taking specific advantage of nunchuk? I am curios to try them. I enjoyed playing "Tiny Crate" which worked really nice with a nunchuk.

Nothing off the top of my head but ill reply here upon learning about any! I am looking to do some work on nunchuck × godot in the future though

​@@LeonAnaviYou might want to try using the Dolphin emulator. It would be great if it could fully replicate the functionality of an original Wii Nunchuck.

Well, it is a different laptop model. Are you also an Ubuntu user on this x220?

@@LeonAnavi Yes I use ubuntu-24.04-desktop. Only running Windows the pen worked xD On Ubuntu I tried versions wayland and xorg - still no pen xD

Thanks for sharing these details. Speaking of LM2596, yes it is a good alternative if PCB space is not constrained.

Please provide details. How have you connected the sensor to the Raspberry Pi?

@@LeonAnavi with a mcp30080 a/d converter and I used your code

@@MiniMini-ks6gh this video is for MCP3002. MCP3008 should be similar but it offers more channels. Make sure your wiring is correct and double check the pins of MCP3008 as per its datasheet.

As you have seen in the video this analog capacitive sensor the capacitance value into an electrical signal so using an analog to digital converter we outputs a percentage value to monitor moisture. Other sensors like TDR(Time Domain Reflectometry) make measurements based on the dielectric constant. There is correlation between soil moisture and dielectric: as the soil moisture increases, its dielectric constant also increases correspondingly so I guess in your app you eventually can do the math to show it (if you are using a capacitive sensor like the one in the video).