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Green rectangular development board with 40-pin GPIO header and multiple integrated circuit chips

LORDWORLD

LORDWORLD RS485 CAN HAT MCP2515 SN65HVD230 SP3485 development board

SKU CH-A1JA-59CEE

Adds CAN and RS485 interfaces to Raspberry Pi boards via 40-pin GPIO with MCP2515, SN65HVD230 and SP3485 transceivers plus TVS protection

  • Standard Raspberry Pi 40PIN GPIO header fits Raspberry Pi series boards
  • CAN control via MCP2515 controller and SN65HVD230 transceiver on SPI interface
  • Reserved control pins allow connection to other control boards
  • RS485 half-duplex with SP3485 transceiver and automatic TX/RX control
  • Onboard TVS suppressor protects RS485 lines from surge and electrostatic spikes

RS485 CAN HAT for Raspberry Pi

This development board adds industrial CAN and RS485 interfaces to any Raspberry Pi model through the standard 40 pin GPIO header. It carries an MCP2515 CAN controller linked by SPI and an SN65HVD230 transceiver for reliable bus access. A separate SP3485 chip handles half duplex RS485 communication over UART with automatic transmit and receive switching that requires no extra code. Onboard TVS protection guards the RS485 lines against surges and electrostatic discharge.

Makers needing dual industrial buses

Engineers building automation, automotive diagnostics or sensor networks that require both CAN and RS485 on a single Pi will find the dual transceiver layout convenient. The reserved control pins also allow the board to work alongside other HATs or custom controllers. Projects that only need one protocol or that demand full duplex RS485 without additional hardware should consider a simpler or differently specified module.

Dual bus with SPI CAN and UART RS485

The MCP2515 connects through the Pi SPI bus while the SP3485 uses the UART, giving simultaneous access to both networks without pin conflicts. Automatic TX/RX control on the RS485 side removes the need for software direction handling. TVS diodes on the RS485 port provide hardware level surge suppression for harsh environments.

Points forts

  • Standard Raspberry Pi 40PIN GPIO header fits Raspberry Pi series boards
  • CAN control via MCP2515 controller and SN65HVD230 transceiver on SPI interface
  • Reserved control pins allow connection to other control boards
  • RS485 half-duplex with SP3485 transceiver and automatic TX/RX control
  • Onboard TVS suppressor protects RS485 lines from surge and electrostatic spikes

Caractéristiques

BrandLORDWORLD

Questions sur cet article

Does the MCP2515 SPI link become the bottleneck during continuous CAN traffic?

The MCP2515 connects through the Raspberry Pi's SPI bus, so sustained CAN throughput is limited by that shared SPI bandwidth.

How much heat or noise does the SP3485 RS485 transceiver add when the bus runs all day?

The SP3485 is a low-power half-duplex transceiver; it adds negligible heat and produces no audible noise during continuous operation.

Which Raspberry Pi models can physically mount the 40PIN GPIO header on this HAT?

Any Raspberry Pi board with a standard 40-pin GPIO header aligns with the HAT's extension header for direct mounting.

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