> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# 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

## How to buy

- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## 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)