Description
Gyro und ACC in one unit.
4.7K Pullups onboard.
3.3V regulator onboard, 5V can be used directly.
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Attation:
There is one BUG in MWC v2.0, that MPU6050 DLPF setting has no effect,
Please replace original MPU6050 Gyro_init() function with the following:
More information : http://www.multiwii.com/forum/viewtopic.php?f=8&t=1591
// ************************************************************************************************************
// I2C Gyroscope and Accelerometer MPU6050
// ************************************************************************************************************
#if defined(MPU6050)
void Gyro_init() {
TWBR = ((16000000L / 400000L) - 16) / 2; // change the I2C clock rate to 400kHz
i2c_writeReg(MPU6050_ADDRESS, 0x6B, 0x80); //PWR_MGMT_1 -- DEVICE_RESET 1
delay(5);
i2c_writeReg(MPU6050_ADDRESS, 0x19, 0x00); //SMPLRT_DIV -- SMPLRT_DIV = 0 Sample Rate = Gyroscope Output Rate / (1 + SMPLRT_DIV)
i2c_writeReg(MPU6050_ADDRESS, 0x6B, 0x03); //PWR_MGMT_1 -- SLEEP 0; CYCLE 0; TEMP_DIS 0; CLKSEL 3 (PLL with Z Gyro reference)
i2c_writeReg(MPU6050_ADDRESS, 0x1B, 0x18); //GYRO_CONFIG -- FS_SEL = 3: Full scale set to 2000 deg/sec
// enable I2C bypass for AUX I2C
#if defined(MAG)
i2c_writeReg(MPU6050_ADDRESS, 0x6A, 0x00); //USER_CTRL -- DMP_EN=0 ; FIFO_EN=0 ; I2C_MST_EN=0 (I2C bypass mode) ; I2C_IF_DIS=0 ; FIFO_RESET=0 ; I2C_MST_RESET=0 ; SIG_COND_RESET=0
i2c_writeReg(MPU6050_ADDRESS, 0x37, 0x02); //INT_PIN_CFG -- INT_LEVEL=0 ; INT_OPEN=0 ; LATCH_INT_EN=0 ; INT_RD_CLEAR=0 ; FSYNC_INT_LEVEL=0 ; FSYNC_INT_EN=0 ; I2C_BYPASS_EN=1 ; CLKOUT_EN=0
#endif
i2c_writeReg(MPU6050_ADDRESS, 0x1A, MPU6050_DLPF_CFG); //CONFIG -- EXT_SYNC_SET 0 (disable input pin for data sync) ; default DLPF_CFG = 0 => ACC bandwidth = 260Hz GYRO bandwidth = 256Hz)
//debug2 = i2c_readReg(MPU6050_ADDRESS, 0x1A);
//debug2 = MPU6050_DLPF_CFG;
}
