... -30V DC motor, and provides a 5V output interface can 5V single-chip circuitry to supply, support 3.3VMCU control, you can ... , power indicator, current detection, the logic part of the board to take power interface. Module wiring: IN1-IN4 connected microcontroller, ENA ... , when the VCC voltage greater than 6V, the +5 output, easy to 5V single-chip power supply, when the VCC voltage is ...