bootstrapin arduino-cli & digispark setup to quickly turn your attiny85 into a 2$ rubber ducky

arduino-cli is installed with curl so be sure to have curl installed on your machine, otherwise: sudo apt install curl

• buy a digispark attiny85 microcontroller here or somewhere else
• run setup.sh in the repo, basically it:
  • installs arduino-cli
  • set specific udev permissions in order to program the attiny85 microcontroller
  • installs specific depedencies so that arduino-cli can program the attiny85 microcontroller

Once your setup is done, edit your .ino project located in project/ and compile it as follow:

arduino-cli compile --fqbn digistump:avr:digispark-tiny project/

then upload it on your board:

arduino-cli upload --fqbn digistump:avr:digispark-tiny -p /dev/ttyACM0 project

NB: make sure that your project.ino is inside a folder of the same name (here project). Won't work otherwise.

You'll then have 60 seconds to plug in your USB attiny85 to upload the payload on it.

The repo contains 3D models (in models/) to 3D print a case to make it look like an USB key.

A .blend to modify it with blender.

A .cbddlp in case you have an elegoo mars 3d printer.

The official documentation doesn't provide a simple bash script to automate everything, so here it is. I was just fed up with clicking everywhere in the GUI to configure my computer & flash the device.

If it doesn't work goto troubleshooting :)

& thx to https://github.com/ArminJo/DigistumpArduino/ for the package_digistump_index.json