Product Description 5V isolation with MCU, and effectively protect the MCU; 5V power indicator on the board. Voltage indication of the motor driver output; can solder heat sink. Only need four lines from the MCU to the drive module (GND. 5V. PWM1. PWM2); isolation chip 5V power supply (can share with MCU 5V). to turn the motor forward, two PWM input frequencies up to 25kHz; two heat fluxes passing through an error signal output. Isolated chip 5V power supply (can share with MCU 5V), can also use the built-in 5V supply; the supply voltage 5.5V to 27V. Input voltage: 6V-27V Maximum current: 43A Input level: 3.3-5V Control: PWM or level Duty cycle: 0- Input port: 1.RPWM: forward level or PWM signal input, active high 2.LPWM: Reverse level or PWM signal input, active high 3.R_EN: forward drive enable input, high level enabled, low level off 4.L_EN: Reverse drive enable input, high level enabled, low level off 5.R_IS: forward drive current alarm output 6.L_IS: Reverse drive current alarm output 7.VCC: +5 V power output, 5V power supply connection with the microcontroller 8.GND: signal common low end Color: Photo color Material: ABS Size: 5 x 5 x 3cm Package Contents: 4 x Motor Drive Module Only the above package contents, other products are not included. Note: Light reflection and different monitors may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.