DFRobot Dual-Channel RS485 Expansion HAT for Raspberry Pi 4B

Description DFRobot Dual-Channel RS485 Expansion HAT for Raspberry Pi 4B Meticulously designed for Raspberry Pi 4B Incorporates an isolated transceiver for reliable data transmission Equipped with embedded protection circuits Includes a screw accessory kit for secure installation Enhances overall performance of the device The DFRobot Dual-Channel RS485 Expansion HAT for Raspberry Pi 4B is a meticulously designed expansion HAT that is compatible with the Raspberry Pi. It incorporates an isolated transceiver, which enhances the reliability and anti-interference of data transmission in each channel. This feature ensures isolated RS485, thereby improving the overall performance of the device. In addition, this expansion HAT is equipped with embedded protection circuits. These include a lightning and surge protector, a TVS diode, and power supply isolation. These features collectively contribute to the effective protection of the Raspberry Pi development board. The package also includes a screw accessory kit to securely affix this board onto a Raspberry Pi controller. View more What's Included 1x RS485 Expansion HAT for Raspberry Pi 4x Copper Column & Screw Dimensions 56 x 65 mm / 2.20 x 2.56 inch Mounting hole diameter: 2.5 mm Links Website DFRobot Dual-Channel RS485 Expansion HAT for Raspberry Pi 4B - Wiki Specifications Operating Voltage: 3.3 V RS485 Transceiver: TP75176E Serial Chip: CH432T RS485 Communication Interface x2 Power Indicator: red TX Communication Indicator: Blue RX Communication Indicator: Green 120Ω Terminal Resistance: x2 Wiring Method: 5.08-3P pluggable terminal block Raspberry Pi 3B+/4B Supported