Dual-channel RS485 Expansion HAT for Raspberry Pi

DFRobotSKU: DFR0824
Sale price £23.33
incl. VAT
excl. VAT
Only 8 units left

Compatible with:

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This dual-channel RS485 expansion HAT designed for the Raspberry Pi adopts an isolated transceiver to achieve isolation for RS485, which increases the reliability and anti-interference of data transmission in each channel. And it features embedded protection circuits such as a lightning and surge protector, a TVS diode, and power supply isolation to protect the Raspberry Pi development board effectively.

Besides, the order includes a screw accessory kit that allows users to tightly fix this board onto a Raspberry Pi controller.

Connection Example - RS485 Expansion HAT and Laser Ranging Sensor


  • Dual Channel RS485
  • Electrical & signal isolation
  • Lightning & surge protection
  • Transient voltage suppressor
  • RX/TX data transmitting/receiving indicator


  • Operating Voltage: 3.3V
  • RS485 Transceiver: TP75176E
  • Serial Chip: CH432T
  • RS485 Communication Interface ×2
  • Power Indicator: red
  • TX Communication Indicator: blue
  • RX Communication Indicator: green
  • 120Ω Terminal Resistance: ×2
  • Wiring Method: 5.08-3P pluggable terminal block
  • Raspberry Pi 3B+/4B Supported
  • Mounting Hole Size: diameter 2.5mm
  • Dimension (Package Not Included): 56×65mm


Package Contents

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

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