Catda 2-Channel Isolated RS485 Expansion HAT BoardSC16IS752+SP3485 Solution for Raspberry Pi 4B/3B+/3B/3A+/Zero

Overview This is a 2 channel isolated RS485 expansion HAT designed for Raspberry Pi adopts the SC16IS752 SP3485 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 RS485 for auto transceiving 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 boardsAdopts SC16IS752 SP3485 dual chip combination converts SPI to RS485 data rate up to 921600bpsAllows transceiving data manually or automatically configured by DIP switchOnboard TVS Transient Voltage Suppressor effectively suppress surge voltage and transient spike voltage in the circuit lightning proofanti electrostaticOnboard auto recovery fuse and protection diodes ensures the current voltage stable outputs provides over current over voltage proof improves shock resistanceOnboard LEDs for indicating the power and transceiver statusBreak0ut SPI control pins for connecting with host control boards like Arduin0Comes with development resources and manual examples in C and Python Specifications UART expansion chip SC16IS752RS485 transceiver SP3485Communication interface SPIData rate 300 921600 bpsOperating voltage 3 3V 5VDimensions 65mm 56 5mmMounting hole size 3 0mmPackage Included 1 RS485 HAT