• sales

    WeChat:spotpear

  • support

    WeChat:zhoujie13424403025

RS485 CAN Board

Overview

RS485&CAN Shield is an industrial communication module for Raspberry Pi, there are on board 2*RS485 Bus and 1*CAN Bus communication interface via SPI interface.

CAN bus and RS485 bus powered through separated isolation power module, signal between the transceiver and the controller is isolated , ESD protection for the communication port, ensure your raspberry pi can be used in more strictly industrial scene.

Features

  • Compatible with Raspberry Pi 4 Model B/3B+/3B/2B/Zero/Zero W.
  • Only a small amount of GPIO are used and the rest pins allow to work for other expansion function. please refer to RS485 CAN Shield#GPIO MAP
  • Power supply and signal isolation, Build-in surge and ESD protection.
  • CAN function, onboard CAN controller MCP2515 via SPI interface, onboard high speed CAN transceiver, onboard digital isolation ADUM1201BRZ, Communication Rates 20Kbps-1Mpbs can be programmed arbitrarily.
  • RS485 function, controlled via UART, half-duplex communication, supports automatic TX/RX control without programming, onboard SPI to RS485 SC16IS1752. Electrical data isolation ADM2483.
  • On board individual 120 Ohm terminal resistance, Impedance matching and guarantee the ability to drive.

GPIO MAP

PIN NoPIN of RpiUsage
PIN18GPIO_24RS485 Interrupt
PIN19GPIO_10SPI0 MOSI
PIN21GPIO_9SPI0 MISO
PIN22GPIO_25CAN Interrupt
PIN23GPIO_11SPI0 SCLK
PIN24GPIO_8RS485 Transfer Chip Selection
PIN26GPIO_7CAN Transfer Chip Selection

Output Interface


No.FunctionDescription
1RS485_A1RS485-1 A Single
2GND_485RS485-1 Isolated GND
3RS485_B1RS485-1 B Single
4RS485_A2RS485-2 A Single
5GND_ISORS485-2 Isolated GND
6RS485_B2RS485-2 B Single
7CANHCAN-H
8CAN_GND_ISOCAN Isolated GND
9CANLCAN-L S
Price: $29.89
Part Number: RS485 CAN Board
Brand: Spotpear
SKU: 0102044