The DJI 1240BA Servo serves as an S-Bus (RS485) servo and is compatible with PWM.
1. When used to drive the Robotic Arm, the system will automatically switch to bus mode. Here are the instructions:
a) The default number for servos is 4, but the number of a servo on the left or right side of the Robotic Arm can only be 1-3. So, before your first use, go to Servo Connection in the app and change the servo number.
b) After connecting the servo to the Robotic Arm, go to Settings->Expansion Module, and tap Connect to connect the Robotic Arm before use.
2. When used as an independent servo, the DJI 1240BA Servo can be controlled via PWM or S-Bus.
Note: Once assembled into the driver of the Robotic Arm, the DJI 1240BA Servo cannot be used as an independent servo. To make it an independent servo, you will need to disconnect it from the Robotic Arm by going to Settings->Expansion Module in the app.
3. S-Bus mode and PWM mode will automatically switch according to input signals. Manual operation is not necessary. The frequency of PWM signals is 50hz, with a duty cycle of 2.5%-12.5% and a corresponding output rate of 0-360°.