I am looking for a simple way to convert the standard RX TX pins from devices such as raspberry pi GPIO or Arduinos and make the availble as a HID device.
i know some arduinos currently support this but its a huge waste for 2 pins.
I was hoping there would be a simple IC available but i cant seem to find one.
My main goal is for a serial to Keyboard converter.
This comes close, but it’s not ready made. And so not as simple. But it is open source.
Any of the 32u4 based Arduino compatibles can do that fairly easily. It looks like the only board like this that Sparkfun has right now is the Pro Micro. Adafruit has several as well. The 32u4 has a hardware UART and can use the Keyboard library to act as an HID keyboard through the USB port. It may be a waste, but it’s not expensive.