Dji ROBOMASTER EP CORE User Manual

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ROBOMASTER EP Core User Manual

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Pulse Width Servo Angle

Setting the PWM Ports

PWM (pulse width modulation) controls the duration of a high level of output during a certain period,

and is broadly used to control LEDs, navigation gears, and more. The PWM port has a default duty

cycle of 7.5% and a fundamental frequency of 50 Hz.

For LEDs, the PWM output rate ranges from 0% to 100%, with 0% corresponding to an LED’s lowest

brightness and 100% to its highest brightness. For navigation gears, the PWM output rate ranges

from 2.5% to 12.5%.

You can set the navigation gear PWM output percentage based on the rotation angles you wish to

control.

Calibrating the Robot

If any of the following scenarios occur, recalibrate the robot in the RoboMaster app:

a. The robot moves involuntarily while rotating.

b. The chassis cannot be controlled when warning prompts appear in the app.

c. The motion controller has been installed or reinstalled.

The specic calibration steps are as below:

1. Open the RoboMaster app, tap on Settings, then System, and select Calibration.

2. Follow the steps in the app to calibrate.

Each time the custom program or Python program nishes running, the PWM port output

signal will be set to its default setting, which is 50 Hz and the duty cycle is 7.5%.

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Dji ROBOMASTER EP CORE Educational Robot