# Onion ADC Expansion

**Type:** Product page · **SKU:** CE05449 · **Brand:** [Onion Omega](https://core-electronics.com.au/brands/onion-omega-australia)
**Page:** https://core-electronics.com.au/onion-adc-expansion.html ([markdown](https://core-electronics.com.au/onion-adc-expansion.html.md))

## Retired product

This product is retired and no longer available for purchase. Replaced by: Single Board Computer.

**Replacement:** https://core-electronics.com.au/catalog/product/view/sku/Single%20Board%20Computer

## Description

The Omega ADC Expansion board will bring a new world – the analog world – directly to your Omega2 modules. This TI ADS115 based 4-channel 16-bit Delta-Sigma analog to digital expansion board plugs into the Omega Expansion, Power, or Arduino Docks thru the 30-pin expansion header. It offers not only 4 analog signal connections (each with its own power and ground), but also 3 Grove compatible expansion connectors as well. We’ve been impressed with the range of sensors, actuators, and controllers available in the Grove family, and so we are including 2 analog and 1 digital Grove connectors right on the ADC Expansion.

And in addition, the ADC Expansions are stackable, and each Omega2/Dock will support up to 2 stacked ADC Expansion boards giving you 8 channels in total. The tiny switch we included on the side of the ADC expansion lets you select the I2C address of each ADC between 0x48 and 0x49.

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/u/n/untitled1_1_2.jpg)