We do not have the L298N attached to a heatsink. Can you recommend a link sayng how to do this?
We thought that when the datasheet said: Rated Voltage: 3,96 V, that we should feed the motor with 3,96 volt from the adjustable DC powersupply.
In the datasheet for the motors we read that the rated current is: 2,2 amp. So can we run it at a lower current?
[If you have a machine shop you can just make yourself a big block of aluminum to bolt on instead of trying to find a proper heatsink (it's not a standard package so finding a heatsink for it could be challenging).
Those Radio Shack ones look good but they may be an online only thing - have never seen them in the bins at a RS store.
Dear the solution by adding two resistors at the tail of the H-bridge,at pins 1&pin 15
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