5V isolated power supply with MCU for effective protection; onboard 5V power indicator. Voltage indication at motor driver output; optional heatsink soldering. Requires only four connections from MCU to driver module: GND, 5V, PWM1, PWM2. Isolation chip powered by 5V (can share MCU’s 5V supply). Supports bidirectional motor control; PWM input frequency up to 25 kHz. Error signal output available for current monitoring. 5V supply for isolation chip can be shared with MCU or sourced from onboard regulator. Operating voltage range: 5.5V–27V. Input voltage range: 6V–27V. Maximum continuous current: 43A. Input logic level compatible: 3.3V–5V. Control mode: PWM or digital level. Duty cycle range: 0–100%. Input/Output pins: 1. RPWM: Forward direction PWM or level signal input (active high) 2. LPWM: Reverse direction PWM or level signal input (active high) 3. R_EN: Forward drive enable (high = enabled, low = disabled) 4. L_EN: Reverse drive enable (high = enabled, low = disabled) 5. R_IS: Forward current sense alarm output 6. L_IS: Reverse current sense alarm output 7. VCC: +5V power output (for MCU power connection) 8. GND: Signal ground reference Color: As shown in photo Material: ABS Dimensions: 5 × 5 × 3 cm Package includes: 1 × Motor Driver Module Note: Actual color may vary slightly due to lighting and screen settings. Dimensional tolerance: ±1–3 cm.