roro9stack

A multi-app firmware for the M5Stack Cardputer ADV with the Cap LoRa-1262. It's a Meshtastic-compatible mesh messenger, plus Wi-Fi tools, IRC, GNSS and more. Licensed GPL-3.0.

• Domain language: CONTEXT.md
• Decisions: docs/adr/
• Milestones: docs/milestones/

Requirements

Only Docker is needed. PlatformIO and the ESP32 toolchain run inside a container, and are cached in the roro9stack-pio Docker volume. The first build downloads about 1 GB and takes a few minutes.

Build and test (local CI)

scripts/ci.sh

This runs the host-side unit tests (test/, native environment), then builds the firmware. The output is .pio/build/cardputer-adv/firmware.factory.bin.

Flash

1. Connect the Cardputer by USB-C.

2. Run:

   scripts/flash.sh            # auto-detects the port; or: scripts/flash.sh /dev/ttyACM1
   

   This uploads the firmware, then opens the serial monitor. Quit the monitor with Ctrl+C.

If the upload can't connect, put the device in download mode: hold G0 (the button next to the screen) while plugging in USB, or while pressing reset. Then retry.

If you get "permission denied" on the port, your user needs access to the serial device. Run this once, then log out and back in:

sudo usermod -aG dialout "$USER"

Development aids

scripts/serial_log.sh [seconds] [command…] records the serial output, and can send commands to the firmware first. For example, scripts/serial_log.sh 30 short sleep:12 burst sets short screen timeouts, waits 12 s, then sends a burst of Toasts.

Command	Effect
burst	Publishes 5 Notifications at once
key up|down|left|right|select|back|home	Injects a logical key press
sound on / sound off	Toggles the Sound setting (beep + LED)
short / normal	Screen timeouts 5 s / 10 s, or 30 s / 60 s

scripts/flash.sh stops a running serial log first, since it would hold the port.