The servo has three interfaces, distinguished by brown, red and orange lines (different brands may have different colours). BROWN wire is for GND, RED wire for voltage input 5V, and ORANGE wire for signal terminal (PWM signal).

The rotation angle of the servo is controlled by regulating the duty cycle of the PWM (Pulse-Width Modulation) signal. The standard cycle of the PWM signal is fixed at 20ms (50 Hz), and the pulse width is distributed between 1 ms – 2 ms.

The pulse width corresponds to the rotation angle ( 0°～360°) of the servo.

SPECIFICATION

• Operating voltage: DC 4.8V〜6V
• Angle range: about 90°(in 1000→2000μsec)
• Pulse-width range: 1000→2000μsec
• No-load speed: 0.12±0.01 sec/60（DC 4.8V）; 0.1±0.01 sec/60（DC 6V）
• No-load current: 200±20mA（DC 4.8V）; 220±20mA（DC 6V）
• Stop torque: 1.1±0.01kg/cm（DC 4.8V）; 1.3±0.1kg/cm（DC 6V）
• Stop current: 600±30mA（DC 4.8V）; 750±30mA（DC 6V）
• Standby current: 4±1mA（DC 4.8V）; 4±1mA（DC 6V）
• Operation temperature: -10℃〜50℃
• Save temperature: -20℃〜60℃
• Motor wire length: 250 ± 5 mm
• Dimensions: 22.7mm*12.12mm*25.7mm
• Weight: 12± 1 g (without servo mounts)

TUTORIAL

• https://lastminuteengineers.com/servo-motor-arduino-tutorial/