2 Channel Isolated RS485 Expansion HAT for Raspberry Pi 4B/3B+/3B/2B/Zero/Zero W, SC16IS752+SP3485 Solution with Multi Onboard Protection Circuits,Transceiving Data Manually or Automatically

Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards. Adopts SC16IS752+SP3485 dual chip combination, converts SPI to RS485, data rate up to 921600bps. Allows transceiving data manually or automatically, configured by DIP switch. Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightning-proof & anti-electrostatic. Onboard auto-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance. Onboard LEDs for indicating the power and transceiver status. Breakout SPI control pins, for connecting with host control boards 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.