IBest 2 Channel Isolated RS232 Expansion HAT for Raspberry Pi 4B/3B+/3B/2B/Zero/Zero W, SC16IS752+SP3232 Solution, Converts SPI to RS232,with Multi Onboard Protection Circuits

2-CH RS232 HAT with 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, lightning-proof & 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)