DFRobot Dual-channel RS485 Expansion Hat for Raspberry Pi 4B

RS485 is a widely used serial communication standard renowned for its robust noise rejection, extended transmission range, and multi-drop capability. It employs a differential transmission method, enabling it to mitigate common-mode interference effectively. Utilizing a pair of twisted-pair cables and two terminal resistors, RS485 ensures signal integrity over long distances.

This dual-channel RS485 expansion HAT, tailored for the Raspberry Pi, integrates isolated transceivers to achieve channel isolation, thereby enhancing data transmission reliability and resistance to interference. Additionally, it incorporates embedded protection circuits, including lightning and surge protectors, TVS diodes, and power supply isolation, safeguarding the Raspberry Pi development board effectively.

Furthermore, the package includes a screw accessory kit for securely attaching the board to a Raspberry Pi controller.

Applications:
– Agricultural Internet of Things
– Warehouse Internet of Things
– Indoor and Outdoor Environmental Monitoring
– Lighting Control
– Security Access Control System

Package Includes:

1 x RS485 Expansion HAT for Raspberry Pi
4 x Copper Column & Screw