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Thank you so much for your comment! I liked a lot making this project too and it is still fully functional on my desk 😀

You can even use the windows command line like "echo some message >COM1" so in theory you don't even need the Arduino serial console although it makes it simpler.

can i also ask which wat model of arduino are you using?

@@xiaodingdang2764 It's a regular Arduino Uno v3.

Here I list the components I used: github.com/raphaelchampeimont/arduino_fake_bomb_wires

Yes you can find the link in the description of the video: github.com/raphaelchampeimont/arduino_fake_bomb_wires

it's there: github.com/raphaelchampeimont/arduino_fake_bomb_wires

The keyboard is actually 4 pins (VCC, GND, DATA, CLK). You can see the diagram here github.com/raphaelchampeimont/arduino_almacha_os. Unfortunately I don't think the wire colors are strandard inside the PS/2 keyboard cable are standard so you'd have to somehow guess. For the software side you can either do like in github.com/raphaelchampeimont/arduino_almacha_os/blob/main/almacha_os/keyboard.ino where I did it the hard way by coding the low-level signal decoding (which I did for fun) or simpler like here github.com/raphaelchampeimont/arduino_eeprom_editor/blob/main/EEPROM_editor/EEPROM_editor.ino where I used a library that decodes the PS/2 signals for me.

Thank you :)

​@@riverchampeimontis there a way just for audio just to play from the computer itself through the Arduino like Make the Arduino as main audio device

​@@riverchampeimontI'm trying to do like you know when you plug headphones into a computer like that but I want to build my own DJ controller I'm trying to figure out just for audio to be playing through the Arduino and through the speaker pins into an amp

​@@dj-la--wolf7194 If I understand properly you want to use directly the headphones output of the computer, connect it to the Arduino which would capture the sound and then apply some transformation with code and re-output it. For the output you could do the same as my project. But for the input you would need to connect it to an analog pin on the Arduino and read it as an analog signal.

I think this would definitely be possible. In this other video th-cam.com/video/-Ej4zM4t6mE/w-d-xo.html for instance I transmit audio in real time from one Arduino to another. The "input" Arduino reads data from a floppy drive in my project which is much more complicated, so reading from a microphone should clearly be possible. Your project is a really cool idea btw :)

Thanks :) Actually I don't, I have just used a temperature sensor on the circuit (TMP36)

@@riverchampeimont yeah i was thinking of doing that, the other option is tapping the bios data, im trying to undestand how that works because the bios looks like the only part i could "hack" for that purpouse. meanwhile im monitoring voltage too, just for the sake of showing data, im building a cyberdeck, its all about the aesthetics lol. fan speed was easy buy the idea to tap the hdd led was great.

@@jonayamaha3215 One solution you still have, if like me you power the Arduino directly from a USB port in the computer, is to write a program which runs in the background on your computer, and regularly gets the BIOS sensor data and sends it to the virtual serial port which corresponds to the Arduino. Then on the Arduino side you then read the data from the serial port.

You can find everything on the github page: github.com/raphaelchampeimont/arduino_eeprom_editor

It's just an external battery. I developed the project by connecting the USB cable directly to my computer, but for the video it would have been confusing because one could have thought that the data goes through the USB cable to the computer (also in that case the ground of the Arduino is connected to the ground of the computer by two ways: RS232 and USB, so if you incorrectly connect the RS232 while connected to the computer via USB you could create a short-circuit).

​@@riverchampeimont I am a little bit confused, isn't the USB port on the Arduino using RS232 serial communication? why do you use TX RX pin? just using the USB port as a serial. I am a little bit new to this, thank you for your time.

​@@raymondzhao9557 Yes, you can also do serial communication using the USB port. When you connect an Arduino Uno to your computer, your computer emulates a serial port, for instance on my Windows computer it would appear as COM4. This is what I do in this other video th-cam.com/video/IvkEMvsHVPk/w-d-xo.html for instance in which I send data to COM4 which is the virtual serial port which goes through USB. In the current video on the other hand, I wanted to demonstrate that you can also connect an Arduino to the real hardware old-style serial port of the computer (port COM1 in Windows here) by using RX and TX pins. I agree this is only "for the challenge", since using the USB port like like in my other video is in fact much simpler (and you can get a lot more KBit/s also with the USB port).

The LCD screen I used is compatible with the Hitachi HD44780 standard in order to be usable with the www.arduino.cc/reference/en/libraries/liquidcrystal/ Arduino module but with the nice addition of being able to change the background color. The specific LCD screen I used is part 399 from Adafruit, cf www.adafruit.com/product/399 which I ordered here from DigiKey: www.digikey.fr/fr/products/detail/adafruit-industries-llc/399/5774232

@@riverchampeimont Hello again. you aproach is more clear, but as i'm finding some difficulties on finding the same screen type you've used, I'm trying to replace it with a normal lcd (both std and i2c) and a RGB led. I'm currently designing it on tinkercad, because I'm adding some extra options. Once I found it almost finished, I'll share it with you, maybe you'll find it useful. Thank you so much!

@@lordnaickol You can indeed adapt it to a regular LCD screen since the LCD library does not use the RGB part in fact. If you publish your code somewhere like Github I can add a link from my github repository to show it as an example of derived project.

You can change the time in the source code with the constant TOTAL_TIME (by default 3600 seconds)

Yes it's there: github.com/raphaelchampeimont/arduino_fake_bomb_wires

@@riverchampeimont thank you sir

It's an Adafruit RA8875. You can look at the schematic of my setup here: github.com/raphaelchampeimont/arduino_TFT_display_snow

Yes, it's possible to use the floppy to write directly analog data (bypassing the regular storage format). This guy has done it for instance: th-cam.com/video/ziVXF_tM4Gw/w-d-xo.html

@@riverchampeimont I already found that video, it uses the data lines with decoding circuits. So, I mean, external fine stepping for the heads and wiring the heads directly (bypassing the drive's circuits), similarly like this: th-cam.com/video/Xpr7B-7BFP4/w-d-xo.html In this, the floppy heads are directly wired like audio cassette heads. Okay?

@@zsombor_99 You're right. I remembered incorrectly the video I cited. On the other hand, the video you're citing does exactly what you talk about indeed writes the audio analog signal directly as magnetic variations on the floppy. Doing it with an Arduino would be possible, but in fact the only part in which the Arduino would be useful is moving the step motor. The signal itself does not need any processing by the Arduino since it's directly the audio signal. So the Arduino code would be pretty trivial: just send a pule to the step motor every time you receive the pulse sent by the drive when it does one rotation.

@@riverchampeimont Yes, but it needs a lot slower and smoother (custom) head moving to improve it.