
ZG09 CO
2
Module
http://www.ZyAura.com
REV. 082018
Pin assignment of ZG09
Figure 1. Module External Drawing
Note: The dimensions in this drawing are for reference only.
Pin Configuration:
Pin
Function
PWM
CO
2
ppm PWM output
DAO
DAC output
G
Ground
5V
Power input +5V
SDA
I2C Data pin
SCL
I2C Clock pin (default) or RS485 R/T control pin
TX
UART TX
RX
UART RX
V
3.3V output