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Feature/madflight fc3 config new sensors #1030

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f5c8546
MADFLIGHT_FC3: add I2C sensor configuration
gintaris Feb 16, 2026
48bd398
MADFLIGHT_FC3: update BMP580 defines to BMP5XX for driver rename
gintaris Feb 16, 2026
eef94f1
MADFLIGHT_FC3: Use default DSHOT motor protocol
gintaris Feb 16, 2026
574396e
MADFLIGHT_FC3: Add INA226, BMP580, MMC5603 sensor configs
gintaris Feb 18, 2026
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80 changes: 54 additions & 26 deletions configs/MADFLIGHT_FC3/config.h
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Original file line number Diff line number Diff line change
Expand Up @@ -38,24 +38,43 @@
//------------------

// Bus for internal I2C sensors
// NOTE: Board has BMP580 barometer, MMC5603 compass and INA226 power sensor. Sensors not supported by betaflight_2025.12.0-beta
// NOTE: Board has BMP5xx barometer, MMC560x compass and INA226 power sensor.
#define I2C0_SCL_PIN PA33
#define I2C0_SDA_PIN PA32
#define I2C0_CLOCKSPEED 100 // 100kHz (slow, most compatible)
#define USE_I2C_PULLUP // Enable internal pull-ups

// LED
#define LED0_PIN PA45 // blue
//#define LED0_INVERTED

// Battery voltage
#define USE_ADC
#define ADC_INSTANCE ADC1
#define ADC_VBAT_PIN PA44
#define DEFAULT_VOLTAGE_METER_SOURCE VOLTAGE_METER_ADC
#define DEFAULT_VOLTAGE_METER_SCALE 110 // 100k/10k divider
// INA226 Current Sensor (connected to I2C0)
// NOTE: Requires feature/ina226-power-monitor branch merged
#define USE_CURRENT_METER_INA226
#define DEFAULT_INA226_I2C_DEVICE 1 // 1 = I2CDEV_0 (internal I2C bus)
#define DEFAULT_INA226_ADDRESS 0x40 // Default INA226 address (A0=GND, A1=GND)
#define DEFAULT_INA226_SHUNT_RESISTANCE 2000 // 2mΩ shunt resistor (2000 µΩ) - adjust based on actual board design
#define DEFAULT_INA226_MAX_CURRENT 50000 // 50A maximum expected current
#define DEFAULT_INA226_VBAT_SCALE 100 // Calibration: 100 = 1.00x (no scaling needed, INA226 reads accurately)
// Use INA226 as meter source when INA226 driver is merged:
//#define DEFAULT_CURRENT_METER_SOURCE CURRENT_METER_INA226

// Battery voltage - use INA226 for voltage measurement (no ADC needed)
// Use INA226 as meter source when INA226 driver is merged:
//#define DEFAULT_VOLTAGE_METER_SOURCE VOLTAGE_METER_INA226

// RGB LED
#define LED_STRIP_PIN PA46

// Motor protocol - use default DSHOT600
// For analog ESCs, change to: #define DEFAULT_MOTOR_PROTOCOL MOTOR_PROTOCOL_ONESHOT125

// Digital OSD via MSP Displayport (for HDZero, Walksnail, DJI, etc.)
// Connect VTX to PIOUART0 (PA10=TX, PA11=RX)
#define USE_OSD
#define USE_MSP_DISPLAYPORT
#define MSP_DISPLAYPORT_UART SERIAL_PORT_PIOUART0

// Gyro+acc
//#define USE_GYRO_CLKIN //TODO - gives compile error with betaflight_2025.12.0-beta
#define USE_GYRO
Expand Down Expand Up @@ -182,25 +201,34 @@
//+3.3V
//GND

// Optional external barometer connected to I2C1 (second i2c bus) PA2=SDA PA3=SCL
// Internal BMP5xx barometer on I2C0
#define USE_BARO
#define USE_BARO_MS5611
#define USE_BARO_BMP280
#define USE_BARO_BMP388
#define USE_BARO_LPS
#define USE_BARO_QMP6988
#define USE_BARO_DPS310
#define USE_BARO_BMP085
#define USE_BARO_2SMBP_02B
#define USE_BARO_LPS22DF
#define BARO_I2C_INSTANCE I2CDEV_1
#define USE_BARO_BMP581
#define DEFAULT_BARO_BMP581
#define BARO_I2C_INSTANCE I2CDEV_0

// Optional external compass connected to I2C1 (second i2c bus) PA2=SDA PA3=SCL
// Internal MMC560x compass on I2C0
#define USE_MAG
#define USE_MAG_HMC5883
#define USE_MAG_QMC5883
#define USE_MAG_LIS2MDL
#define USE_MAG_LIS3MDL
#define USE_MAG_AK8975
#define USE_MAG_IST8310
#define MAG_I2C_INSTANCE I2CDEV_1
#define USE_MAG_MMC560X
#define MAG_I2C_INSTANCE I2CDEV_0

// Optional external barometers on I2C1 (second i2c bus) PA2=SDA PA3=SCL
// Disabled to reduce I2C detection errors - uncomment if needed
//#define USE_BARO_MS5611
//#define USE_BARO_BMP280
//#define USE_BARO_BMP388
//#define USE_BARO_LPS
//#define USE_BARO_QMP6988
//#define USE_BARO_DPS310
//#define USE_BARO_BMP085
//#define USE_BARO_2SMBP_02B
//#define USE_BARO_LPS22DF

// Optional external compass connected to I2C1 (second i2c bus) PA2=SDA PA3=SCL
// Disabled to reduce I2C detection errors - uncomment if needed
//#define USE_MAG_HMC5883
//#define USE_MAG_QMC5883
//#define USE_MAG_LIS2MDL
//#define USE_MAG_LIS3MDL
//#define USE_MAG_AK8975
//#define USE_MAG_IST8310
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