# Serial Expansion HAT for Raspberry Pi

**Type:** Product page · **SKU:** WS-15667 · **Brand:** [Waveshare](https://core-electronics.com.au/brands/waveshare-in-australia)
**Page:** https://core-electronics.com.au/serial-expansion-hat-for-raspberry-pi.html ([markdown](https://core-electronics.com.au/serial-expansion-hat-for-raspberry-pi.html.md))

Serial Expansion HAT for Raspberry Pi, I2C Interface, 2-ch UART, 8 GPIOs

## Pricing

- **Price:** $21.35 (inc GST) — $19.41 AUD, exc GST
- **Quantity discounts:** 10+ $18.64 (exc GST) · 25+ $18.05 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 3 today, and up to 300 more in 12–19 days.

## Description

There is only 1-ch UART port on the original Raspberry Pi, and once it is used for terminal debugging, you'll find yourself fresh out of space for another serial device. With this expansion, you have 2-ch extra UART, plus 8 programmable GPIOs.

## Specifications

- Operating voltage: 3.3V
- Expansion chip: SC16IS752
- Control interface: I2C
- Dimension: 65mm x 30mm
- Mounting hole size: 3.0mm
 
## Dimensions

## ![Serial Expansion HAT dimensions](https://core-electronics.com.au/attachments/localcontent/Serial-Expansion-HAT-size_21978941c0a.jpg)

## Documents

- **Wiki**
 
## Shipping List

- 1 x Serial Expansion HAT
- 1 x RPi screws pack (2pcs)
- 2 x PH2.0 6PIN wire

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/c/e/ce07296-6.jpg)