This Block adds ADC functionality to the Edison’s I2C bus. The ADS1015 ADC from TI provides a single 12-bit delta-sigma convertor with an analog multiplexer. It can be configured as a four-channel single-ended device or as a two-channel differential device.
The ADC Block has jumpers to allow selection of the I2C slave address among four different options, allowing up to four of these cards to be stacked under one Edison. The sampling rate is not sufficient for audio capture, at 2.2kHz, but it should be adequate for most control applications. This version also has a 3.3V output (now with less noise on the line) to use as a voltage reference and a solder jumper to select between I2C1 and I2C6.
If you are looking to add a little more stability to your Intel Edison stack, check out this Hardware Pack. It will provide you with increased mechanical strength for stacking Blocks on your Edison!