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rlwilliamson-dev 568d311ab0 boards: add GAT562 30S Mesh Kit (nRF52840, RAK4631 core)

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.

2026-06-02 11:28:44 -05:00

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Supported Boards

Board strings for use with west build -b <board> zephcore.

nRF52840

rak4631
rak3401_1watt
wio_tracker_l1
t1000_e
thinknode_m1
thinknode_m3
thinknode_m6
rak_wismesh_tag
ikoka_nano_30dbm
sensecap_solar
xiao_nrf52840
lilygo_techo
promicro_sx1262
heltec_t114
gat562_30s

RAK WisMesh Pocket (WisBlock pocket): use -b rak4631 — same board string and firmware as RAK4631.

Heltec T114 screenless build: append boards/nrf52840/heltec_t114/no_display.conf to EXTRA_CONF_FILE for units without the TFT module.

ESP32

xiao_esp32c3
xiao_esp32c6/esp32c6/hpcore
xiao_esp32s3/esp32s3/procpu
lilygo_tlora_c6/esp32c6/hpcore
station_g2/esp32s3/procpu
heltec_wifi_lora32_v3/esp32s3/procpu
heltec_wifi_lora32_v4/esp32s3/procpu
heltec_wifi_lora32_v43/esp32s3/procpu

ESP32 boards require west blobs fetch hal_espressif before first build.

Heltec V3 console/shell use uart0 (UART serial) in ZephCore.

MG24 (Silicon Labs)

xiao_mg24

Requires west blobs fetch hal_silabs and pyocd.

nRF54L

xiao_nrf54l15/nrf54l15/cpuapp

Requires --no-sysbuild flag: west build -b xiao_nrf54l15/nrf54l15/cpuapp zephcore --no-sysbuild

1.2 KiB Raw Blame History

Supported Boards

nRF52840

ESP32

MG24 (Silicon Labs)

nRF54L

1.2 KiB

Raw Blame History