> **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

# 2-Channel Isolated RS232 Expansion HAT

**Type:** Product page · **SKU:** WS-17498 · **Brand:** [Waveshare](https://core-electronics.com.au/brands/waveshare-in-australia)
**Page:** https://core-electronics.com.au/2-channel-isolated-rs232-expansion-hat.html ([markdown](https://core-electronics.com.au/2-channel-isolated-rs232-expansion-hat.html.md))

2-Channel Isolated RS232 Expansion HAT for Raspberry Pi, SC16IS752+SP3232 Solution, with Multi Onboard Protection Circuits

## Pricing

- **Price:** $26.55 (inc GST) — $24.14 AUD, exc GST
- **Quantity discounts:** 10+ $23.17 (exc GST) · 25+ $22.45 (exc GST)

## Availability & dispatch

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

## How to buy

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- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

2-channel isolated RS232 HAT for Raspberry Pi

### Features

- Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
- Adopts SC16IS752+SP3232 dual chip combination, converts SPI to RS232, data rate up to 921600bps
- Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic
- Onboard LEDs for indicating the power and transceiver status
- Breakout SPI control pins, for connecting with host control boards like Arduino
- Comes with online development resources and manual (examples in C and Python)
 
### Specifications

 | UART expansion chip | SC16IS752 |
|---|---|
| RS232 transceiver | SP3232 |
| Communication interface | SPI |
| Data rate | 300 ~ 921600 bps |
| Operating voltage | 3.3V / 5V |
| Dimensions | 65.0 × 56.5mm |
| Mounting hole size | 3.0mm |

### What's On Board

![](https://core-electronics.com.au/attachments/localcontent/2-CH-RS232-HAT-details-intro_25522af22c1.jpg)

 | **1** | **SC16IS752** | UART expansion chip |
|---|---|---|
| **2** | **SP3232** | RS232 transceiver |
| **3** | **π142M61** | RS232 transceiver |
| **4** | **B0505LS** | power supply isolation module |
| **5** | **RT9193-33** | power chip |
| **6** | **Raspberry Pi GPIO header** | for connecting Raspberry Pi |
| **7** | **MCU control header** | for connecting host control boards like Arduino |
| **8** | **RS232 connector** | 2 channels RS232 interface (RS232 9PIN male) |
| **9** | **Transient suppress diode array** |
| **10** | **ESD protection two-way diode** |
| **11** | **Serial port status indicators** | RXD1/TXD1: channel 1 transceiving indicator RXD2/TXD2: channel 2 transceiving indicator |
| **12** | **Power indicator** |
| **13** | **Interrupt pin switch** | The interrupt pin IRQ is connected to P5 (BCM P24) by default, changeable via 0R resistor |

### Pin Definitions

![](https://core-electronics.com.au/attachments/localcontent/2-CH-RS232-HAT-details-inter_245742202a4.jpg)

### Product showcase

![](https://www.waveshare.com/img/devkit/accBoard/2-CH-RS232-HAT/2-CH-RS232-HAT-details-9.jpg) ![](https://www.waveshare.com/img/devkit/accBoard/2-CH-RS232-HAT/2-CH-RS232-HAT-details-11.jpg)

### Dimensions

![](https://www.waveshare.com/img/devkit/accBoard/2-CH-RS232-HAT/2-CH-RS232-HAT-details-size.jpg)

### Resources & Services

- Wiki for RS232 HAT
 
### Product includes

1. 2-CH RS232 HAT x1
2. 2x20PIN female pinheader x1
3. RPi screws pack (2pcs) x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/W/S/WS-17498-2.jpg)