About this item

The Raspberry Pi RS485 HAT is a dual-channel expansion board tailored for reliable serial communication over RS485. Featuring isolated transceivers on each channel, it enhances noise immunity and data integrity for long-distance, multi-drop networks. Built-in protection circuits—including lightning and surge protection, TVS diode, and power supply isolation—safeguard your Raspberry Pi from electrical hazards. The HAT supports the Modbus protocol, allowing master/slave communication with unique slave addressing and robust error checking. Included is a screw accessory kit for secure mounting to your Raspberry Pi, making it an ideal choice for industrial and automation projects.