Details

This board has four analog inputs and one analog output, controlled through simple 2 wire I2C interface pins from any microcontroller or similar interface.
Four channels of analog inputs(ADC) can connect to various analog sensors and voltage sources, allowing you to measure accurately all four channels same time with 8 bit resolution (0-255 values) in range of 0-5V. There is single analog output(DAC) that can output analog voltage in range of 0 to 5V with 8 bit resolution (0-255 values 19.5mV per step).
The DAC can be used to create analog voltage through digital interface, useful in digital power supplies and creating function generator for generating waveforms like sine, square, triangle, sawtooth and such.
The I2C interface(SDA/SCL) for reading/writing the board appears to MCU just like a 24Cxx type EEPROM but with difference address to read/write values.

Features

• 4x Analog Inputs 8 Bit resolution(0-255)
• 1x Analog Output 8 Bit resolution(0-255)
• Simple two wire I2C(SDA/SCL) interface just like 24Cxx type EEPROMs
• Jumper to connect Analog Input #0 to Onboard Preset for testing
• Adjustable VREF for adjusting the maximum measured voltage this increasing resolution for low voltage measure signals.
• Can Interface with any Microcontroller (C51, AVR, PIC or any) or USB-I2C interface.
• Full Source Code, Board Schematic, IC Datasheet and Interfacing diagrams provided on CDROM.