i already connected a peltier element (heating/cooling) with a transistor (on/off) to arduino. now i would like to control the temperature.
the peltier element uses 1.9V and up to 3A. my first thought was using a l293d. but it can't handle 3A (got got itself). my experiments with l298 did not work at all. l298 should handle 3A, it should be able to flip polarity and control the voltage.
do you have any other suggestions for controlling a peltier element?