DIGILENT PMOD STEP 演示板, 用于L293DD步进电机
The is a Demo Board designed to provide an easy means to drive a stepper motor using any host board with a 12-pin Pmod connector. The PmodStep contains a push-pull four channel driver, capable of driving up to 600mA of current per channel. The PmodStep has eight digital I/O signals on header J1, all of which are connected to indication LEDs to show the current states of the signals. Four of the signals are used to control the stepper motor driver. The PmodStep can be powered either from Vcc on the microcontroller board or alternatively, from the external power screw terminal block.