AM-100 Analog to Digital I2C Converter Module

AM-100 Analog to Digital I2C Converter PCF8591 with cable

This small device allows you to send in four possible analog signals varying from voltage to be adjusted and converted into digital signal using I2C pinouts for any microcontroller. Use the potentiometer to adjust the desired output digital signal voltage you want for your microcontroller. Works great with raspberry pi, or other voltage sensitive devices. Jumpers will create a short that uses the photo resistor for testing with your microcontroller, please remove jumpers when using analog pins and adjusting voltage with voltmeter. Please keep the jumper in place If you are connecting to a raspberry pi or 3.3v pinout sensitive device.

Tutorial:

http://www.bristolwatch.com/rpi/pcf8591.html

Operating Voltage: 2.5-6V

PCB Dimension: 36 x 23 mm (L x W) 
Hole Diameter : 3mm

I2C bus serial input / output

4 analog inputs programmable as single-ended or differential inputs

Automatic incremental channel selection

8-bit successive approximation A / D converter

Module chip using PCF8951