ProXR Enhanced with 8/12-Bit Analog to Digital Conversion

Analog to Digital Conversion allows
you to Read Voltage Levels from 0-5VDC. 

XR expansion port Allows you to Control
up to 256 External Relays: 

Read and Control with the Same Board!

This Analog to Digital Converter allows you to read voltage levels from 0-5 volts using 8-bit or 12-bit resolution.  This is particularly useful for reading temperature sensors (one temperature sensor is built into the board, shared with analog input number 8).  A/D Inputs are also useful for reading light level sensors, thermocouples, switch closures, or just about any other kind of sensor you can think of.  Built-In Pull-Up/Down Resistors keep the inputs quiet.