Modul convertor AD/DA PCF8591 cu fotorezistor si termistor

single power supply
  PCF8591 operating voltage range of 2.5V-6V
  low standby current
  via I2C bus serial input / output
  PCF8591 by 3 hardware address pins addressing
  PCF8591 I2C bus speed sampling rate decision
  4 analog inputs programmable as single-ended or differential input
  automatic incremental channel selection
  PCF8591 analog voltage range from VSS to VDD
  PCF8591 built-track and hold circuit
  8-bit successive approximation A / D converter
  DAC gain realized by an analog output


Module Interface Description
This module left and right, respectively, two-way pin external expansion interfaces, respectively, as follows:
   DA output interface chip on the left AOUT
        AINO chip analog input interface 0
        AIN1 chip analog input interface 1
        AIN2 chip analog input interface 2
        AIN3 chip analog input interface 3
   The right of the SCL IIC clock interface connected microcontroller IO port
        SDA IIC digital interface connected to the microcontroller IO port
        GND module to an external ground
        VCC Power Interface External 3.3v-5v

Modules red jumper instructions
   Module A total of three red jumper, namely the role of the following:
   P4 P4 jumper connected, select thermistor access circuit
   P5 P5 jumper connected, select photoresistor access circuit
   P6 P6 jumper connected, select 0-5V adjustable voltage access circuit