5V isolated power supply with MCU protection; onboard 5V power indicator. Voltage indication for 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 for current monitoring. 5V isolation supply compatible with MCU 5V; also supports onboard 5V regulation. Operating voltage range: 5.5V–27V. Input voltage range: 6V–27V. Maximum continuous current: 43A. Input logic level: 3.3V–5V. Control modes: 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 input (high = enabled, low = disabled) 4. L_EN: Reverse drive enable input (high = enabled, low = disabled) 5. R_IS: Forward current fault alarm output 6. L_IS: Reverse current fault 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 product color may vary slightly due to lighting and screen settings. Dimensional tolerance: ±1–3 cm.