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Product Description
This board allows you to control one stepper motor, as well as receive input from two limit switches. It is based around the L297/L298 stepper driver combo. The L297 takes the signals from your microprocessor and translates them into stepping signals to send to the L298 which actually drives your stepper motor. The L298 is capable of driving up to 2A per coil. One interesting feature of the L297 is its current sensing and 'chopping' abilities. The L297 will sense the amount of current flowing through the coils, and will 'chop' the signal to the L298 so that the average current flowing is the desired amount. You can configure this current by setting the trimpot on the board and measuring the voltage on the test point.
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