Hi,
I have a L298n like this: http://www.ebay.co.uk/itm/like/181333991645?limghlpsr=true&hlpv=2&ops=true&viphx=1&hlpht=true&lpid=108&device=c&adtype=pla&crdt=0&ff3=1&ff11=ICEP3.0.0-L&ff12=67&ff13=80&ff14=108&ff19=0
When I use it it makes noises, should it be capable of this? I am using it to drive 2 6v DC motors.
Cheers,
Alex
They do that, yes.
The motors may make a similar noise.
You should tell more about how you are driving the shields and the motors.
But i bet you're using PWM to control speed.
Look into setting PWM to a higher frequency (use other PWM pins, not all pins are the same).
If you move the frequency up high enough, they will still make this noise, but you can't hear it.
Your pets might still hear it though.
Thanks for the useful reply. Glad its not a problem. Yes I am using PWM, I will try adjusting the frequency.
Cheers,
Alex
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