Module Description:
Module chip with PCF8591T, SMD package
Support 4 channel analog voltage the acquisition signal input (voltage input range of 0 - 5V)
Module with power indicator 1 (D1)
A module with DA output indicator (D2), when the DA output voltage reaches a certain value, the indicator light, the higher the voltage value, the brighter lights
The module integrates a Road 0 - 5V voltage input acquisition (through the blue and white potentiometer to adjust the input voltage)
The module Integrated Road the photoresistor (Model: 5537), ambient light intensity by AD collection
Module integrated way thermistor (Model: MF58) ambient temperature by AD collection
PCB size: 48mm * 25mm * 1.6mm
Quality panel corners arc design will not scratch your hand. With a positioning hole aperture 3.1mm, easy to use 3mm Tongzhu fixed

Wiring instructions:
Left 4 pin:
SDA IIC data interface connected microcontroller IO ports (P2.0)
SCL IIC clock interface connected microcontroller IO port (P2.1)
The cathode interface external VCC power 3.3/5V positive power supply
GND Negative interface external 3.3/5V negative supply

Right 8 pin :
AOUT module DA output port
AIN3 analog input signal interface
AIN2 analog input signal interface
AIN1 analog input signal interface
AIN0 analog input signal interface 0
The INPUT3 analog input signal interface 3
INPUT2 thermistor signal input port is connected to
The INPUT1 has photoresistor signal input port connected to the
INPUT0 is connected to the signal input port of the potentiometer