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Green rectangular ABS enclosure housing six relay modules with terminal blocks and circuit board visible inside

LORDWORLD

LORDWORLD 6-Channel Relay Module RS485 CAN Bus ABS Case development board

SKU CH-VAJA-BF8Y4

Six relays with RS485 and CAN interfaces plus onboard power, photocoupler and TVS protection in an ABS case

  • 6-channel relay control for multi-circuit switching
  • RS485 half-duplex via SP3485 with auto RX/TX
  • CAN half-duplex via MCP2515 plus SN65HVD230
  • Onboard power isolation removes need for extra supply
  • Photocoupler, TVS and resettable fuses protect against surges

Industrial Relay Module for Raspberry Pi Zero WH

This six-channel relay board targets makers and engineers building automation projects with a Raspberry Pi Zero WH. It combines RS485 and CAN bus interfaces in a single ABS enclosure. Onboard power-supply isolation and photocoupler isolation protect the host from high-voltage relay circuits.

Check host headers and software stack before

The module communicates over UART for RS485 using an SP3485 transceiver and over SPI for CAN using an MCP2515 controller with an SN65HVD230 transceiver. Verify that your Pi Zero WH exposes the required UART and SPI pins and that your operating system supports the corresponding kernel drivers. The board draws power from the Pi header so confirm the 5 V rail can supply the additional load.

Replaces separate RS485

Integrating both field buses and six isolated relays into one case removes the wiring and mounting effort of stacking multiple HATs. The jump is worth it when a project needs mixed Modbus RTU and CANopen networks with surge protection from onboard TVS diodes, resettable fuses and protection diodes. Projects requiring only a single protocol or fewer channels may not benefit from the combined hardware.

Highlights

  • 6-channel relay control for multi-circuit switching
  • RS485 half-duplex via SP3485 with auto RX/TX
  • CAN half-duplex via MCP2515 plus SN65HVD230
  • Onboard power isolation removes need for extra supply
  • Photocoupler, TVS and resettable fuses protect against surges

Specifications

BrandLORDWORLD

Questions about this item

Does the board come with a Raspberry Pi Zero WH or must I supply my own?

The module is designed for a Raspberry Pi Zero WH which is not included; you provide the Pi and the board adds six relays, RS485 and CAN interfaces inside the ABS case.

Should I use the RS485 or the CAN interface for my automation network?

RS485 uses the SP3485 transceiver with UART and auto RX/TX switching; CAN uses the MCP2515 controller plus SN65HVD230 transceiver on SPI — choose the protocol your existing devices already speak.

How do the isolation features protect the Raspberry Pi when switching mains loads?

Onboard power-supply isolation, photocoupler isolation, TVS diodes and resettable fuses keep high-voltage transients on the relay side from reaching the Pi’s GPIO and power rails.

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