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WB_A1 external battery sense

This flasher serves one purpose: flash WB_A1-aware MeshCore firmware onto RAK3401 and RAK4631 / RAK4630 WisBlock cores. The WB_A1 analog input (AIN1) reads the battery through a user-supplied voltage divider, so you see the actual cell voltage in telemetry instead of the clipped on-board sense. Recommended base: RAK19007 (J11 pin 1). Stock MeshCore builds are not exposed here on purpose. Wiring guide · Docs

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