... and a is enough; 3, and single chip microcomputer 5 v isolation, and effectively protect microcontroller; 4, motor driver output terminal ... to drive module with four with line can (GND, 5 v, PWM1, PWM2); 7, battery power supply drive power; 8, isolation ... supply (with single-chip microcomputer Shared 5 v); 9, power support 5.5 ~ 25 v; 10, maximum frequency support 15 KHZ, more than ...