ADEEPT PiCar-Pro Manual page 156

Port 3 servo port.
7. The servo that controls the clamping action of the chuck is connected to the Port 4
servo port.
8. The ultrasonic module is connected to the Ultrasonic port with a 4pin wire. Never
connect the ultrasonic to the IIC port, which will cause permanent damage to the
ultrasonic module.
9. The WS2812 light bar is connected to the WS2812 port with a 3pin wire. Note here
that the signal to control the light is sent by the Raspberry Pi and sent to the WS2812
light bar with the 3PIN wire with the driver board. It needs to be connected from the
light bar with a white stripe. (The interface text on the back of this end is marked IN),
connect from the other end of the light bar (the interface is marked OUT) and then
connect to the input end of the next light bar with the 3PIN wire (It is painted with
white stripes, and the interface is marked with IN).
10. The OLED screen is connected to the IIC port of the driver board with a 4PIN
wire.
11. MPU6050 is inserted into the 8PIN DuPont port on the front of the driver board.
12. Connect the power supply to the VIN port.
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