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Arduino Mega Only 2 of 3 Fans Working

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(@keifypeat)
Active Member
Joined: 1 year ago
Posts: 4
Topic starter  

Hi All

I'm having trouble getting 3 PWM fans running on my Arduino Mega 2560. I've set these up with the SHAKEIT PWM FANS Outputs and assigned outputs to pins 11,12, and 13, but unable to get the fan connected to pin 13 working correctly, just spins at 100% constantly as the other two do when I disconnect the PWM pin. I don't believe this is a wiring issue as the fan works correctly when connected to either pins 11 or 12?

Any help would be much appreciated


   
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(@tjolli)
New Member
Joined: 1 year ago
Posts: 2
 

I have this problem also, but have not found any solution so far. This is a strange one, when fan is connected to pin 11 or 12, it works just fine. Are you using a genuine Arduino Mega or a clone?


   
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(@keifypeat)
Active Member
Joined: 1 year ago
Posts: 4
Topic starter  

Hi @tjolli

I have the same problem with both a genuine and clone Mega's. I originally bought a genuine Mega and when I couldn't get my third fan working I invested in a second, but this time a clone. Now running one for centre fan and the other for left and right fans as I too are yet to find a solution?...


   
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