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feat: DIY Seeed XIAO nRF52840 + EBYTE E22 variants, pin-compatible with Wio-SX1262 kit (#7105)

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These DIY builds are functionally similar to the legacy xiao_ble variant, but use a pinout harmonized with the officially-supported XIAO nRF52840 & Wio-SX1262 Kit for Meshtastic (SKU 102010710).

An additional E22-900M33S variant is provided to ensure SX1262 transmit power is set below the maximum PA input for that module, to avoid damaging it.

- seeed_xiao_nrf52840_e22_900m30s:
  - XIAO nRF52840 + EBYTE E22-900M30S
  - EBYTE E22 pinout matching Wio-SX1262 (SKU 113010003)
  - I2C
    - SDA: D6
    - SCL: D7
  - User button: D0
  - Gain is programmed in firmware - user Tx power setting is the desired final output power
- seeed_xiao_nrf52840_e22_900m33s:
  - XIAO nRF52840 + EBYTE E22-900M33S
  - EBYTE E22 pinout matching Wio-SX1262 (SKU 113010003)
  - I2C
    - SDA: D6
    - SCL: D7
  - User button: D0
  - Gain is programmed in firmware - user Tx power setting is the desired final output power

Signed-off-by: Andrew Yong <me@ndoo.sg>
This commit is contained in:
Andrew Yong 2025-07-13 15:58:01 +08:00 committed by GitHub
parent 77768e9023
commit fd414ed149
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1 changed files with 14 additions and 0 deletions
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variants/diy/platformio.ini
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@ -96,6 +96,20 @@ board_level = extra
build_flags = ${env:seeed_xiao_nrf52840_kit.build_flags} -D PRIVATE_HW -DXIAO_BLE_LEGACY_PINOUT -DEBYTE_E22 -DEBYTE_E22_900M30S
build_unflags = -DGPS_L76K
; Seeed XIAO nRF52840 + EBYTE E22-900M30S - Pinout matching Wio-SX1262 (SKU 113010003)
[env:seeed_xiao_nrf52840_e22_900m30s]
extends = env:seeed_xiao_nrf52840_kit
board_level = extra
build_flags = ${env:seeed_xiao_nrf52840_kit.build_flags} -D PRIVATE_HW -DEBYTE_E22 -DEBYTE_E22_900M30S
build_unflags = -DGPS_L76K
; Seeed XIAO nRF52840 + EBYTE E22-900M33S - Pinout matching Wio-SX1262 (SKU 113010003)
[env:seeed_xiao_nrf52840_e22_900m33s]
extends = env:seeed_xiao_nrf52840_kit
board_level = extra
build_flags = ${env:seeed_xiao_nrf52840_kit.build_flags} -D PRIVATE_HW -DEBYTE_E22 -DEBYTE_E22_900M33S
build_unflags = -DGPS_L76K
; Seeed XIAO nRF52840 + XIAO Wio SX1262 DIY
[env:seeed-xiao-nrf52840-wio-sx1262]
board = xiao_ble_sense