Product selling points: Small size, easy to carry, stable performance, easy to use. Number of control channels: 8. Functional characteristics: 1. Onboard STM32 generates high-resolution PWM signals for precise control. 2. Supports manual mode and center return mode; mode can be switched via buttons with indicator light. 3. Supports knob adjustment control in manual mode. 4. Number of control channels: 8. 5. Servo control accuracy: 0.09 degrees (PWM minimum change value of 1us). 6. Supports servos with a control cycle of 20ms and pulse width between 0.5 and 2.5ms. 7. Can directly use a 2S lithium battery charging header for debugging and returning to the servo. 8. Power supply voltage range: 5–9V (based on actual servo power supply requirements). 9. Each servo interface includes a self-recovery fuse to prevent damage from overcurrent. Usage instructions: Servos are power-consuming devices requiring sufficient current supply. If the power indicator light flashes, the servo moves uncontrollably, or positioning errors occur, the power supply may be insufficient and should be replaced. Wiring instructions: Connect VCC and GND to the power source, and plug the servo into the 2x3P pin header. VCC is positive, GND is negative, and S is the signal terminal. Material: PCB Color: As shown Package contents: 1 x 8-channel servo controller debugging board Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement error allowed is +/- 1–3 cm.