Waveshare 2-Channel Isolated RS232 Expansion HAT for Raspberry Pi SC16IS752+SP3232 with Protection Circuits Power Supply Isolation ADI Magnetical Isolation and TVS Diode

Product description Overview This is a 2-channel isolated RS232 expansion HAT designed for Raspberry Pi, adopts the SC16IS752+SP3232 solution, with embedded protection circuits such as power supply isolation, ADI magnetical isolation, and TVS diode, etc. It is easy to control the 2-channel RS232 via SPI interface. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for fields like industrial automation. 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 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: 65mm × 56.5 mm
Mounting hole size: 3.0 mm SC16IS752 UART expansion chip SP3232 RS232 transceiver ADUM1412 digital isolator B0505LS power supply isolation module RT9193-33 power chip
Raspberry Pi GPIO connector: for connecting
Raspberry Pi MCU control header: for connecting host control boards like Arduino
RS232 connector: 2 channels RS232 interface (RS232 9PIN male) Transient suppress diode array ESD protection two-way diode Serial port status indicator
RXD1/TXD1: channel 1 transceiving indicator
RXD2/TXD2: channel 2 transceiving indicator Power indicator Interrupt pin switch The interrupt pin IRQ is connected to P5 (BCM P24) by default Changeable via 0R resistor
Note: the Raspberry Pi and serial cables are NOT included. Pinouts PIN-RASPBERRY PI (BCM) DESCRIPTION VCC -5V 3.3V /5V power supply GND-GND Ground SCK-P21