The PCF8591 is a monolithically integrated, individually powered, low power, 8-bit CMOS data acquisition device. Voltage range: 2.5V-6V.The PCF8591 has four analog inputs, one analog output, and one serial I2C bus interface. The three address pins A0, A1 and A2 of the PCF8591 can be used for hardware address programming, allowing access to eight PCF8591 devices on the same I2C bus without additional hardware. The address, control, and data signals input and output on the PCF8591 device are serially transmitted over a two-wire bidirectional I2C bus. Module interface: AOUT chip DA output interface AINO chip analog input interface 0 AIN1 chip analog input interface 1 AIN2 chip analog input interface 2 AIN3 chip analog input interface 3 SCL – IIC clock interface connected to microcontroller IO port SDA – IIC digital interface connected to microcontroller IO port GND – connected to ground VCC – connected to 3.3v-5v Jumper Connector instruction P4 – connected to P4 shorting cap, select thermistor access circuit P5 – connect P5 shorting cap, select photoresistor access circuit P6 – connected to P6 shorting cap, select 0-5V adjustable voltage access circuit Package Includes : 1 x PCF8591 Analog To Digital Converter Module 4 x Jumper Wire Female To Female 3 x Jumper Connector
