Isolated RS485 RS232 Expansion Hat Board for Raspberry Pi Series, Control Via SPI, Overcurrent/Overvoltage Proof

Adopts the combination scheme of SC16IS752, SP3485 and SP3232, converts SPI to one RS485 and one RS232 Onboard resettable fuse and protection diodes, ensure the stable output of RS485 current and voltage, prevent over-current and over-voltage, improve shock resistance Onboard TVS (Transient Voltage Suppressor), can effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic Breakout SPI control pins, for connecting with Arduino and other host control boards Comes with development resources and manual (examples in C and Python)