ammar

I’ve tried all your suggestions, ive also tried increasing the speed to 300 but still no movement by the motor. I even swapped the connectors, left motor to a pins and right motor to b pin. the sketch is only providing output for B pins somehow. I apologise but i really need to rush this.

Previously I used 9 and 2, the right motors don’t work at all so I tried different pins.

/*
4WD Bluetooth Robot Car
Lesson       : 3.15
Project      : 8a
Project Name : DC Motor Control

Home

*/

const int leftMotor_ctrl = 4;       // pin to control direction of B motor
const int leftMotor_pwm = 5;        // pin to control PWM of B motor
const int rightMotor_ctrl = 7;    // pin to control direction of A motor
const in…[Read more]

• I used your 8a sketch. I managed to get it the motors to run by changing the pin numbers. Your sketch uses pins 4 and 5 for left motor, and 9 and 2 for right motor. However, the right motors are still not following the instructions. It just runs on its own