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©
2020 DJI All Rights Reserved.
21
ROBOMASTER EP Core User Manual
2. Power Port
Power port used for intelligent battery connection. Note that this interface contains the battery
management system. Avoid unplugging the power port unless necessary.
3. M BUS Port
Motor port used for motor connection.
4. CAN BUS Port
A reserved port used for armor module connection.
5. Micro USB Port
Supports connection and communication in SDK USB RNDIS.
6. UART Port
UART port is an extension port, used for programming and supports SDK connection.
7. PWM Output Port
The motion controller enables the duty cycle to be set through the Scratch or Python program
using the PWM output port.
8. S-Bus Port
Controls signal reception and is used to connect a remote controller receiver that supports SBUS protocol.
9. M0 Port
Used for servo and gripper connection.
10. LED indicator
Used to indicate the status of the motion controller.
LED indicator Motion controller status
Blinks blue slowly
Working normally
Blinks yellow slowly
Running autonomous program
Blinks green quickly
IMU calibration successful
Blinks red quickly
IMU calibration failed
Solid yellow
IMU is calibrating
Solid white
Firmware updating
Blinks red, green,
and blue alternatively
No attitude information input
Blinks red slowly
Stop Mode*
Stop mode may occur in the following situations:
a. Motion controller is disconnected from or cannot
communicate with motor.
b. Robot cannot move due to the motor hardware
abnormality.
c. Motion controller cannot communicate with the remote
controller.
d. Abnormal motion controller attitude.
e. Motion controller cannot communicate with the battery.
* Stop mode warning prompts will display in the app. Go to Settings then System to check the
corresponding error.
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