Two I2C Motor Driver (TB6612FNG) for two stepper motor

biproel · October 9, 2020, 9:49am

How configure I2C adress in Motor Driver (TB6612FNG)? Default adress is 0x14.
I have two drivers for two stepper motors , and I can’t change the address of one of them.

Baozhu · October 10, 2020, 12:26am

github.com

Seeed-Studio/Grove_Motor_Driver_TB6612FNG/blob/master/Grove_Motor_Driver_TB6612FNG.cpp#L21


void MotorDriver::standby() {
    I2Cdev::writeByte(_addr, GROVE_MOTOR_DRIVER_I2C_CMD_STANDBY, 0);
    delay(1);
}

void MotorDriver::notStandby() {
    I2Cdev::writeByte(_addr, GROVE_MOTOR_DRIVER_I2C_CMD_NOT_STANDBY, 0);
    delay(1);
}

void MotorDriver::setI2cAddr(uint8_t addr) {
    if (addr == 0x00) {
        return;
    } else if (addr >= 0x80) {
        return;
    }
    I2Cdev::writeByte(_addr, GROVE_MOTOR_DRIVER_I2C_CMD_SET_ADDR, addr);
    _addr = addr;
    delay(100);
}

@biproel setI2cAddr will help you.

vegar_Bartnes · November 13, 2020, 9:21am

Hi
I have the same problem… want to set new i2c adress on one of them… but I do not understand howe to modify the .ccp? do I connect one of the motordriver and run the script… or…?
Sorry I am noob…

mvh vegar

vegar_Bartnes · November 19, 2020, 8:22am

Found my solution by try an error…
I used the library #include “Grove_Motor_Driver_TB6612FNG.h” as mentioned above.
then globaly:
MotorDriver motor;

in setup:
Wire.begin();
motor.init();

In void loop:
motor.setI2cAddr(0x12);//this is the new I2C adress

When i run this once, the adress changed for 0x14 to 0x12, confirmed with i2c scanner