2-Channel Isolated RS232 Expansion HAT For Raspberry Pi

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.RS232 Expansion HAT FeaturesStandard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boardsAdopts SC16IS752 SP3232 dual chip combination, converts SPI to RS232, data rate up to 921600bpsOnboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightning proof & anti-electrostaticOnboard LEDs for indicating the power and transceiver statusBreakout SPI control pins, for connecting with host control boards like ArduinoComes with development resources and manual (examples in C and Python)RS232 Expansion HAT SpecificationsUART expansion chip: SC16IS752RS232 transceiver: SP3232Communication interface: SPIData rate: 300 ~ 921600 bpsOperating voltage: 3.3V / 5VDimensions: 65 mm × 56.5 mmMounting hole size: 3.0 mmWhat’s on BoardSC16IS752 UART expansion chipSP3232 RS232 transceiverADUM1412 digital isolatorB0505LS power supply isolation moduleRT9193-33 power chipRaspberry Pi GPIO connector: for connecting Raspberry PiMCU control header: for connecting host control boards like ArduinoRS232 connector: 2 channels RS232 interface (RS232 9PIN male)Transient suppress diode arrayESD protection two-way diodeSerial port status indicator RXD1/TXD1: channel 1 transceiving indicator RXD2/TXD2: channel 2 transceiving indicatorPower indicatorInterrupt pin switch The interrupt pin IRQ is connected to P5 (BCM P24) by default Changeable via 0R resistorNote: the Raspberry Pi and serial cables are NOT included.PinoutsPINRASPBERRY PI (BCM)DESCRIPTIONVCC5V3.3V/5V power supplyGNDGNDGroundSCKP21 (SPI1 SCLK)SPI clock inputMOSIP20 (SPI1 MOSI)SPI data inputMISOP19 (SPI1 MISO)SPI data outputCSP18 (SPI1 CS)SPI chip selectIRQP24Interrupt outputPackage Included :1 X 2-Channel Isolated RS232 Expansion HAT