... 5V single-chip circuitry to supply, support 3.3VMCU control, you can easily control the DC motor speed and direction, you can ... * 49mm * 33mm 10 drive plate Weight: 46g 11 Other functions: control the direction indicator, power indicator, current detection, the logic part ... directly connected with the high by jumpers, or choose to use MCU control, IN1-IN4 provide 4 jumpers to choose whether connected ...