Fangrui Product Details Fangrui Product Details Fangrui Product Details This Driver Uses Chips Bts7960 Composed Of High-power Drive Full H-bridge Driver Module With Thermal Over-current Protection. Double Bts7960 H-bridge Driver Circuit, With A Strong Drive And Braking, Effectively Isolating The Microcontroller And Motor Driver! High-current 43a Double Bts7960 Large Current (43 A) H Bridge Driver; 5v Isolate With Mcu, And Effectively Protect Mcu; 5v Power Indicator On Board; Voltage Indication Of Motor Driver Output End;can Solder Heat Sink; Pin Definition: 1. Rpwm: Right Turn Pwm 2. Lpwm: Left Turn Pwm 3. R_en: Right Turn Enable (high Active) 4. L_en: Left Turn Enable (high Active) 5. R_is: Right Turn Current Warning (may Leave Floating) 6. L_is: Left Turn Current Warning (may Leave Floating) 7. Vcc: (5v) 8. Gnd Connections: Method 1: Vcc: 5v From Microcontroller(mcu) Gnd: Gnd From Microcontroller(mcu) L_pwm: Pwm Or 5v From Microcontroller(mcu) For Ccw(cw) Turns R_pwm: Pwm Or 5v From Microcontroller(mcu) For Cw(ccw) Turns R_en And L_en: 5v From Microcontroller(mcu) Method