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2-Channel Isolated RS232 Expansion HAT

SKU: WS-17498 Brand: Waveshare

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

Special Price $19.75 AUD, inc GST

Regular Price $27.39 AUD, inc GST

$17.95 AUD, exc GST

Special pricing ends 22 July 2025

* this special may end earlier than shown

Available with a lead time
Expect dispatch between May 05 and May 08

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

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

Product showcase

Dimensions

Resources & Services

Wiki for RS232 HAT

Product includes

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

This product is listed in:

Other Favourites>Waveshare>Raspberry Pi HATs
Breakouts & Modules>RS232

Product Comments

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Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

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