> **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

# Slice of PI/O for Raspberry PI

**Type:** Product page · **SKU:** 005-K002 · **Brand:** [Ciseco](https://core-electronics.com.au/brands/ciseco-australia)
**Page:** https://core-electronics.com.au/slice-of-pi-o-for-raspberry-pi.html ([markdown](https://core-electronics.com.au/slice-of-pi-o-for-raspberry-pi.html.md))

## Retired product

This product is retired and no longer available for purchase. Search the catalogue for an alternative.

## 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

So many people had built the MCP23017 onto the slice of PI that we thought you might like a version on a PCB and with lots of extra functions. Special mention should go to Nathan for coming up with the original idea http://nathan.chantrell.net/20120602/raspberry-pi-io-expander-board/

- Easy to build kit
- Runs at 3v3 or 5v from the PI (red jumper)
- Runs off external power (remove red jumper and wire to pad "EXT POWER")
- 4 wire daisy chain connector (PWR/GND/SCL/SDA)
- Breakout for Interrupt A & B
- Daisy chain upto 8 for 128 I/O pins
- 2 x 8 way 0.1" pitch layout for instant "vero-ability" of all 16 I/O's
- 2 x 8 way 0.1" pitch common ground for ease of use.
- 0.1uf decoupling capacitor
 
Build Guide and documentation can be found here

http://openmicros.org/index.php/articles/94-ciseco-product-documentation/raspberry-pi/223-slice-of-pio

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/k/0/k002.jpg)