Hello,
I have a question : How to use the EXT power for this shield ? I tried using 5 AA 1,5v LR6 batteries in the PWR but when I put the jumper on EXT my code is not working. It is only working when I use the INT power.
This is my little test code for one motor :
int pwm_b = 9; //PWM sur 9
int dir_b = 8; //direction sur 8
void setup() {
pinMode(pwm_b, OUTPUT);
pinMode(dir_b, OUTPUT);
}
void loop() {
digitalWrite(dir_b, HIGH);
analogWrite(pwm_b, 255);
delay(1000);
digitalWrite(dir_b, LOW);
analogWrite(pwm_b, 255
);
delay(1000);
}
Below is a photo of my connection :
Thank you in advance for your replies.
EDIT :
I only had a battery problem. thank you