Isolated RS485 RS232 Expansion HAT for Raspberry Pi (4B/3B+/3B/2B/Zero/Zero 2 W/Zero 2 WH). Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards. ^^Using SC16IS752 and SP3485, SP3232 multi-chip combination scheme, can realize SPI to RS485, RS232, the communication rate is up to 921600bps. Support RS485 and RS232.
RS232: full-duplex communication, SP3232 transceiver.
RS485: semi/full-automatic communication, SP3485 transceiver. ^^Overcurrent/Overvoltage proof, High Stability. Onboard TVS (transient voltage suppression tube), which can effectively suppress the surge voltage and transient peak voltage in the circuit, and protect against lightning and static electricity. Onboard power supply and serial port transceiver indicators, easy to check the module power supply and communication status. ^^Lead out the SPI control interface for easy access to main control boards such as Arduino. Provide complete supporting information manuals (C and python sample progra