Dr. Hax on Nostr: It's the rPi Pico and the Waveshare Lora module that are listed here: There's a ...

It's the rPi Pico and the Waveshare Lora module that are listed here: https://meshtastic.org/docs/hardware/devices/raspberry-pi/

There's a Meshtastic client for Arduino. Connect UART1 on the pico to any UART on the Arduino (I'm using UART1 so I can debug with UART0), and use the Arduino library.

https://client.meshtastic.org can be used to connect to a second meshtastic node over USB to see the messages.

There's also a bunch of configuration steps required for each meshtastic node, but I don't have them written up yet. I had to nuke one of my picos because I messed that up when I configured it wrong, so it's a fairly important detail.