Motor shield broken?

Using Arduino Motors, Mechanics, Power and CNC
1

Hi all, I´ve been using an Arduino for a while now, but I´m running into some problems.

I got a DFRobot motorshield (Arduino_Motor_Shield__L293___SKU__DRI0001_-DFRobot) connected to my Arduino, and 2 lego motors to the shield. I connected the shield and motors just the way it should, so there is no problem there.

Whenever I set the directional port of Motor 2 (pin 4) to LOW, the motor doesn't do anything. If I do the same for Motor 1 (pin 7) the motor does turn the other way.

My best bet is that the shield is broken, but I'd like to know what you guys think.

2

Have you swopped the motors onto each others' pins?- that way you could check if it's the board or the motor.

3

Yep, tried that. Then the other motor gives me problem. So the motors are fine. It isn't the Arduino either, because when I tried the same sketch (Dfrobot demo code) with another Arduino, I got the same problem. Guess I gotta get a new shield :roll_eyes:.

4

Can you show your connection diagram? We will try to help you solve the problem.