The same sketch worked before but not now [solved]

Projects Programming
1

Hi All,

I used a simple code + Arduino Uno R3 + Big Easy Driver to control my stepper motor. Here is my code:

#include <Stepper.h> 
Stepper stepper(20,3,2); 

void setup() 
{
  
   
}

void loop()
{
  stepper.setSpeed(150); 
  stepper.step(240); 
  delay(1000);
  stepper.setSpeed(150);
  stepper.step(-240); 
  delay(1000);
}

This code worked well yesterday. But I re-tested it today, I got no luck. Everything else is kept exactly the same. I checked the connection, it's good. I tried out several motors, but none of them responded. I tried out another drive Easy Driver, nope. I even tried out the "Blink" code, this code worked! And all the sketches were uploaded successfully...

Anyone experienced this "unreliable" situation before? Thanks!

Best,
Sonia

2

I've seen this kind of thing before, alot.

The source of "this "unreliable" situation" is you! You have changed something.

Mark

3

I think I got it figured out! It's because the battery I used for powering the driver was running out. Though LED on the driver was on, the battery is below the trigger voltage, I believe is 7V, I switched to another battery, everything back to normal. I post it here in case anyone else has the same problem. Thanks anyway!