feat: DIY Seeed XIAO nRF52840 + EBYTE E22 variants, pin-compatible with Wio-SX1262 kit #7105
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thebentern
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Jun 26, 2025
…th Wio-SX1262 kit
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>
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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.
Because of previous cleanup, this should have no impact to existing variants.
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