- README: add Room Server to "Device Roles" + a build command in "Building"
- ARCHITECTURE.md: role list two -> four (add Room Server + the
previously-undocumented Observer)
- Repeater_CLI_commands.md: note the room server shares this CLI
- boards/example_board/README.md: add the room_server.conf build snippet
The GAT562 30S Mesh Kit is an nRF52840 + SX1262 board built on the
RAK4631 WisBlock core module with a 30 dBm (1 W) external PA, so it
reuses the proven rak4631 LoRa path. Deltas vs rak4631: 1.8 V TCXO
(per the MeshCore variant), battery multiplier 6232, buzzer on P1.01,
an AT6558R UART GPS, active-high LEDs, and a 5-way joystick that
selects the joystick companion menu UI.
A single board serves both the full kit and the screenless solar
repeater pod; absent peripherals (OLED, GPS, joystick, buzzer) are
optional in devicetree and skipped at runtime.
Board-specific notes:
- GPS: AT6558R NMEA on UART0 @ 9600 (P0.15 RX / P0.16 TX), powered by a
WB_IO2/P1.02 gpio-hog and parsed by gnss-nmea-generic. Uses
CONFIG_UART_ASYNC_API (DMA receive); nRF UARTE interrupt-driven RX did
not feed the modem backend.
- The 6 button/joystick inputs are routed to GPIO SENSE (sense-edge-mask
on &gpio0) so they don't consume the GPIOTE channel the SX1262 DIO1
"done" IRQ needs.
Registration: board definition, CMakeLists.txt platform-conf match,
build.sh (nRF_boards), supported_boards.md, the top-level README board
table, and the porting-guide board table.
Hardware-tested on the kit, companion and repeater: LoRa TX/RX with BLE
active (no CAD errors), BLE pairing (PIN 123456) and two-way messaging,
joystick menu UI, SSD1306 OLED, buzzer, battery %, UF2 + DFU-zip
flashing, and a 14-satellite GPS fix.
liquidraver