Datasheet

2016 product data manual of PLANTOWER
Pin Definition
PIN1
Figure 2 Connector Definition
PIN1
VCC
Positive power 5V
PIN2
GND
Negative power
PIN3
SET
Set pin /TTL level@3.3V，high level or
suspending is normal working status, while
low level is sleeping mode.
PIN4
RX
Serial port receiving pin/TTL level@3.3V
PIN5
TX
Serial port sending pin/TTL level@3.3V
PIN6
RESET
Module reset signal /TTL level@3.3V，low
reset.
PIN7/8
NC
Output result
Mainly output as the quality and number of each particles with different size
per unit volume, the unit volume of particle number is 0.1L and the unit of
mass concentration is μ g/m³.
There are two options for digital output: passive and active. Default mode
is active after power up. In this mode sensor would send serial data to the
host automatically .The active mode is divided into two sub-modes: stable
mode and fast mode. If the concentration change is small the sensor
would run at stable mode with the real interval of 2.3s.And if the change is
big the sensor would be changed to fast mode automatically with the
interval of 200~800ms, the higher of the concentration, the shorter of the
interval.