5V isolate with MCU, and effectively protect MCU; 5V power indicator on board. Voltage indication of motor driver output end; can solder heat sink. Just need four lines from MCU to driver module (GND. 5V. PWM1. PWM2); isolation chip 5 V power supply (can share with MCU 5 V). Able to reverse the motor forward, two PWM input frequency up to 25kHZ; two heat flow passing through an error signal output. Buy Online: https://www.giganepal.com/product/bts7960-43a-high-power-motor-driver-module-smart-car