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Add MAX17048 fuel gauge for Marauder V8 #346

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Merged
bmorcelli merged 1 commit into from
Jun 20, 2026
Merged

Add MAX17048 fuel gauge for Marauder V8 #346

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17 changes: 17 additions & 0 deletions boards/marauder-v8/interface.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,22 @@

CYD28_TouchR touch(320, 240);

// --- MAX17048 fuel gauge (SDA=GPIO5, SCL=GPIO4) ---
#define MAX17048_ADDR 0x36
#define MAX17048_REG_SOC 0x04

int getBattery() {
Wire.beginTransmission(MAX17048_ADDR);
Wire.write(MAX17048_REG_SOC);
if (Wire.endTransmission(false) != 0) return 0;
if (Wire.requestFrom((int)MAX17048_ADDR, 2) != 2) return 0;
uint8_t hi = Wire.read();
Wire.read();
if (hi > 100) hi = 100;
return (int)hi;
}


/***************************************************************************************
** Function name: _setup_gpio()
** Location: main.cpp
Expand All @@ -26,6 +42,7 @@ void _setup_gpio() {
** Description: second stage gpio setup to make a few functions work
***************************************************************************************/
void _post_setup_gpio() {
Wire.begin(5, 4, 400000U); // MAX17048 I2C
if (!touch.begin(&SPI)) {
launcherConsolePrintf("%s\n", String("Touch IC not Started").c_str());
log_i("Touch IC not Started");
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