Data Sheet

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CHART3 YDLIDAR G4 INTERFACE DEFINITION
Pin
Type
Description
Defults
Range
Remarks
VCC
Power Supply
Positive
5V
4.8V~5.2V
-
Tx
Output
System serial output
-
-
Data stream：
LidarPeripherals
Rx
Input
System serial port Input
-
-
Data stream：
PeripheralsLidar
GND
Power Supply
Negative
0V
0V
-
NC
-
Reserved pin
-
-
-
Data communication
With a 3.3V level serial port (UART), users can connect the external system and the product through
the physical interface. Users can obtain the real-time scanned point cloud data, device information as
well as device status.
CHART4 YDLIDAR G4 SERIAL SPECIFICATION
Item
Min
Typical
Max
Unit
Remarks
Baud rate
-
230400
-
bps
8-bit data bit,1 stop
bit, no parity
High Signal
Level
1.8
3.3
3.4
V
Signal voltage>1.8V
Low signal
Level
0
0
0.5
V
Signal voltage<0.5V
Motor control
The G4 has its own motor drive with motor speed control function and a command interface instead
of a hardware interface for motor control. Please refer to the development manual of this product for
details.
Optical Characteristic
G4 uses an infrared point pulsed laser that meets FDA Class I laser safety standards. The laser and
optical lens finish the transmission and reception of the laser signal to achieve high- frequency
ranging while working. To ensure system ranging performance, please keep the laser and optical lens
clean. The detailed optical parameters are as follows: