- Arduino based on the 32U4 chip (recommended: Arduino Micro Pro)
- USB to TTY
- HDMI to USB capture card
- Flash the file
key_passthrough/key_passthrough.inoonto the Arduino. - Unplug the Arduino.
- Connect the following:
| Arduino | USB-TTY |
|---|---|
| Pin 9 | Tx |
| Pin 10 | RX |
| GND | GND |
- Plug the USB-TTY into the laptop
- Plug the Arduino into the device to control
Prerequisit: python 3.8
pip install pygame==2.5.2
python3 passthrough.py [port]
The port argument is /dev/ttyUSB0 by default. test_ports.py can be used to help find the correct port.
Once the game window opens, select it and start typing!
Notes:
- You may need to run in sudo to access the ports. In which case make sure to
sudo pip install pygame - On Windows these are the COM ports
- If you are running in WSL, you need to activate your graphics and tell Windows to pass you the USB device: https://learn.microsoft.com/en-us/windows/wsl/connect-usb#attach-a-usb-device
- Connect the capture card to the device by HDMI and to the laptop by USB.
Media->Open Capture Device- Select
Show more options - Caching:
0 - MLR:
dshow:// - Edit Options:
:dshow-vdev="USB Video" :dshow-adev= :dshow-aspect-ratio="16:9" :dshow-audio-samplerate=48000 :dshow-audio-channels=2 :live-caching=0 :dshow-fps=60 :dshow-size=1920x1080
Note: dshow-vdev may need to be adjusted, check the Video device name dropdown for exact name.
To open this automatically you can create a VLC shortcup with target: "C:\Program Files\VideoLAN\VLC\vlc.exe" dshow:// :dshow-vdev="USB Video" :dshow-adev= :dshow-aspect-ratio="16:9" :dshow-audio-samplerate=48000 :dshow-audio-channels=2 :live-caching=0 :dshow-fps=60 :dshow-size=1920x1080 (example in Capture.lnk)
Original keyboard passthrough and inspiration: https://euer.krebsco.de/a-software-kvm-switch.html