arduino-serial-send

Building

On raspberry, requires rust to be installed:

cargo build

On x86_64, requires rustup:

• Install a C cross compiler for linking C deps

  • E.g. on arch: arm-linux-gnueabihf-gcc from AUR

• Put the following into your ~/.cargo/config:

  [target.arm-unknown-linux-gnueabihf]
  linker = "arm-linux-gnueabihf-gcc"

  (or whatever your arm cross compiler executable is called)

• rustup target add arm-unknown-linux-gnueabihf

• cargo build --target arm-unknown-linux-gnueabihf

Example Usage

mkfifo /tmp/send_to_arduino
nohup ./arduino-serial-send --serial /dev/ttyUSB0 &

Troubleshooting

I started it but it doesn't do anything!

For some reason, the fifo sometimes seems to be created with root as the owner and group. Try killing arduino-serial-send, recreating the fifo or updating the owner / group and then starting it again.

ToDo / Ideas / Roadmap

• Daemonize by itself
  • Unclear how to log errors
• Add example autostart configuration
  • Autostart with the system? With device connection? Which privileges to drop to?
• Use a different input method
  • Which one?
    • DBus: Too complex / pointless dependency?
    • Socket file: TCP? UDP? How to send things from a script?
  • Alternative: Find a way to create the FIFO with Rust
    • Can we read new data from it after EOF without reopening it?