TB6612FNG motor driver not working

[zehevvv]

Hi
I tried to run motor drive TB6612FNG and it's not working and I have no clue why .
I attached the code and the schematic

/*
TB6612FNG H-Bridge Demo
TB6612-Demo.ino
Demonstrates use of TB6612FNG H-Bridge Motor Controller
Drives two DC Motors

DroneBot Workshop 2019
https://dronebotworkshop.com
*/

int stby = 6;
// Motor A

int pwmA = 5;
int in1A = 3;
int in2A = 4;

// Motor B

int pwmB = 6;
int in1B = 7;
int in2B = 8;

// Speed control potentiometers

int SpeedControl1 = A0;
int SpeedControl2 = A1;

// Motor Speed Values - Start at zero

int MotorSpeed1 = 0;
int MotorSpeed2 = 0;

void setup()

{

// Set all the motor control pins to outputs
Serial.begin(115200);
pinMode(stby, OUTPUT);
pinMode(pwmA, OUTPUT);
// pinMode(pwmB, OUTPUT);
pinMode(in1A, OUTPUT);
pinMode(in2A, OUTPUT);
// pinMode(in1B, OUTPUT);
// pinMode(in2B, OUTPUT);

}

void loop() {
static int counter = 0;
Serial.println(counter++);

// Set Motor A forward

digitalWrite(stby, HIGH);
digitalWrite(in1A, HIGH);
digitalWrite(in2A, LOW);

// Set Motor B forward

// digitalWrite(in1B, HIGH);
// digitalWrite(in2B, LOW);

// Read potentiometers and convert to range of 0-255

// MotorSpeed1 = map(analogRead(SpeedControl1), 0, 1023, 0, 255);
// MotorSpeed2 = map(analogRead(SpeedControl2), 0, 1023, 0, 255);

// Set the motor speeds

analogWrite(pwmA, 125);
// analogWrite(pwmB, MotorSpeed2);
delay(1000);
}

Thanks!!!

[gilshultz]

A schematic would be much better then the pictures. I do not see any power to the Arduino, the VCC on the driver is an input not a output. Reconsider the power section and how you are going to get good power to the Arduino where the motor will not mess it up. Remember the Arduino a Power Supply it is NOT.

[zehevvv]

A schematic would be much better then the pictures

attached
tb6612FNG schematic.zip (4.0 ק״ב)

I do not see any power to the Arduino

The power supply of the Arduino is USB cable from computer.

the VCC on the driver is an input not a output

I am not sure what the problem... the 5V power supply of the Arduino is connect to VCC of driver

Thanks for the answer and sorry for the delay

[gilshultz]

I have no clue what a ".fz" file is. If it is a frizzy thing I do not open them.

[zehevvv]

It is frizzy...
How do you want me to attach the schema?

[gilshultz]

The directions to this forum will explain it to you. The USB only gives you about 4.5 volts on the 5V pin maybe a bit more depending on the design.