Item Type: Motor drive module_x000D_ Feature:_x000D_ Double BTS7960 high current (43 A) H-bridge driver;_x000D_ 5V is isolated from MCU to effectively protect MCU;_x000D_ Onboard 5V power indicator;_x000D_ Voltage indication at the output of the motor driver;_x000D_ The radiator can be welded;_x000D_ PIN Definition:_x000D_ 1. RPWM: Turn right to PWM_x000D_ 2. LPWM: Turn left PWM_x000D_ 3. R_EN: Turn right to enable (active high)_x000D_ 4. L_EN: Enable left turn (active high)_x000D_ 5. R_IS: Right turn current warning (may float)_x000D_ 6. L_IS: Left-turn current warning (may float)_x000D_ 7. VCC: (5V)_x000D_ 8. GND_x000D_ Connection Method:_x000D_ Method 1:_x000D_ VCC: 5V from single chip microcomputer (MCU)_x000D_ GND: GND of the microcontroller (MCU)_x000D_ L_PWM: PWM or 5V from the microcontroller (MCU) for CCW (CW) turns_x000D_ R_PWM: PWM or 5V from microcontroller (MCU) for CW (CCW) turns_x000D_ R_EN and L_EN: 5V from the microcontroller (MCU)_x000D_ Method 2:_x000D_ VCC: 5V from single chip microcomputer (MCU)_x000D_ GND: GND of the microcontroller (MCU)_x000D_ L_PWM: 5V from the microcontroller (MCU) for CCW (CW) turns_x000D_ R_PWM: 5V from the microcontroller (MCU) for CW (CCW) turns_x000D_ R_EN and L_EN: PWM from microcontroller (MCU)_x000D_ Merely four wires (GND. 5V. PWM1. PWM2) are needed from the MCU to the driver module;_x000D_ Isolation chip 5 V power supply (can be shared with MCU 5 V);_x000D_ Can make the motor rotate forward, two PWM input frequencies up to 25kHZ;_x000D_ Two heat flows through an error signal output;_x000D_ Isolation chip 5V power supply (can be shared with MCU 5V), you can also use the onboard 5V power supply;_x000D_ Power supply voltage 5.5V to 27V;