• sales

    +86-0755-88291180

Raspberry Pi RS485 CAN Board User Guide

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
TAG: MPW7 Raspberry Pi 5 PCIe to WIFI7 Adapter Board HAT Pi5 For Google TPU BE200 AX210 AI GC9107 RV1103 Raspberry Pi Pico 2 RP2350A Audio Box 1.85-inch LCD Round 1.85inch TouchScreen Speaker 360x360 LuckFox Industrial Modbus RTU 8 ch Relay Module Servo PWM motor WP5320 WP5335 35/20KG.CM 180° PWM digital servo double ball bearings Raspberry Pi 7inch DSI LuckFox Screen Raspberry Pi Pico 2 RP2350B 3.49-inch capacitive TouchCcree 3.49inch LCD display development board 172×640 ESP32-S3 Nano ESP32-S3R8 development board compatible with Arduino Nano ESP32 Raspberry Pi5 ESP32 C3 Round LCD Development Board Electronic EYE 0.71 inch Display Watch Screen GC9A01 160x160 Intel 11th Raspberry Pi DSI Spotpear DPI Interface Development Board Jetson Orin Uninterruptible Power C For Simultaneously Charging and Discharging