RS485 CAN HAT for Raspberry Pi

WaveshareSKU: WAV-14882
(12 Reviews)
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Sale price £15.10
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The RS485 CAN HAT will enable your Raspberry Pi to communicate with other devices stably in long-distance via RS485/CAN functions.

Features

  • Standard Raspberry Pi 40-pin GPIO header
  • CAN function, onboard CAN controller MCP2515 via SPI interface, onboard transceiver SN65HVD230
  • RS485 function, controlled via UART, half-duplex communication, supports automatic TX/RX control without programming, onboard transceiver SP3485
  • Onboard TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit for RS485 transceiving, lightning-proof & anti-electrostatic
  • Reserved control pins, allows working with other control boards
  • Comes with development resources and manual (examples in wiringPi/python)

Resources

Specifications

  • Operating voltage: 3.3V
  • CAN controller: MCP2515
  • CAN transceiver: SN65HVD230
  • 485 transceiver: SP3485
  • Dimension: 65mm x 30mm
  • Mounting hole size: 3.0mm

Pinouts

PIN RPI (BCM) DESCRIPTION
3V3 3V3 3.3V Power
GND GND Ground
SCK P11 / SCLK SPI clock input
MOSI P10 / MOSI SPI data input
MISO P9 / MISO SPI data output
CS P8 / CE0 SPI chip selection
INT P25 Interrupt
RXD P15 / RXD RS485 UART receive
TXD P14 / TXD RS485 UART transmit
RSE P4 RS485 TX/RX control (auto-control by default**), high for TX, low for RX

**some soldering is required to enable manual control

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