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Add Elecrow ThinkNode M8 board support (thinknode_m8) (#11226)

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* Add Elecrow ThinkNode M8 variant scaffold (thinknode_m8)

nRF52840 + SX1262 + 2.4" e-paper + ATGM336H-5NR32 GPS.
All pins resolved from ThinkNode_M8_V0.3.sch; cross-checked
against meshtastic/firmware#9181 (Elecrow V0.1 reference).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* Add Elecrow ThinkNode M8 board support (nRF52840/SX1262, 1.54in e-ink, ATGM336H GNSS, SC7A20, EC04 encoder)

* Address review: keep the stored backlight level out of blanking, match only the SC7A20 WHO_AM_I byte, and transfer detents atomically

* Use std::atomic for the press-and-turn detent counter so native builds compile

* Drop the ThinkNode M8 LED_BUILTIN redefinition that warned on every translation unit

---------

Co-authored-by: claude[bot] <41898282+claude[bot]@users.noreply.github.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Thomas Göttgens
2026-07-30 15:59:35 +00:00
committed by GitHub
co-authored by GitHub claude[bot] <41898282+claude[bot]@users.noreply.github.com> Claude Sonnet 4.6
parent 84322af4e0
commit 597f6767b5
22 changed files with 641 additions and 33 deletions
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src/detect/ScanI2CTwoWire.cpp
+4
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@@ -691,6 +691,10 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
if (registerValue == 0x3300 || registerValue == 0x3333) { // RAK4631 WisBlock has LIS3DH register at 0x3333
type = LIS3DH;
logFoundDevice("LIS3DH", (uint8_t)addr.address);
} else if ((registerValue & 0xFF00) == 0x1100) {
// Silan SC7A20: LIS3DH register map, but answers 0x11 here.
type = SC7A20;
logFoundDevice("SC7A20", (uint8_t)addr.address);
} else {
type = BMA423;
logFoundDevice("BMA423", (uint8_t)addr.address);