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RS485 and CAN Industrial Communication Module for Raspberry Pi 4 Model B/3B+/3B/2B/Zero/Zero W
RS485 and CAN Industrial Communication Module for Raspberry Pi 4 Model B/3B+/3B/2B/Zero/Zero W
RS485 and CAN Industrial Communication Module for Raspberry Pi 4 Model B/3B+/3B/2B/Zero/Zero W
RS485 and CAN Industrial Communication Module for Raspberry Pi 4 Model B/3B+/3B/2B/Zero/Zero W
RS485 and CAN Industrial Communication Module for Raspberry Pi 4 Model B/3B+/3B/2B/Zero/Zero W

    RS485 and CAN Industrial Communication Module for Raspberry Pi 4 Model B/3B+/3B/2B/Zero/Zero W


      RS485&CAN Shield is an industrial communication module for Raspberry Pi 4 Model B/3B+/3B/2B/Zero/Zero W, 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.

      Compatibe with

      • Raspberry Pi 4 Model B
      • Raspberry Pi 3 Model B+
      • Raspberry Pi 3 Model B
      • Raspberry Pi 2 Model B
      • Raspberry Pi 1 Model B
      • Raspberry Pi Zero
      • Raspberry Pi Zero W

      Key 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

       GPIO MAP

      PIN No PIN of Rpi Usage
      PIN19 GPIO_10 SPI0 MOSI
      PIN21 GPIO_9 SPI0 MISO
      PIN23 GPIO_11 SPI0 SCLK
      PIN24 GPIO_8 RS485 Transfer Chip Selection
      PIN26 GPIO_7 CAN Transfer Chip Selection
      PIN18 GPIO_24 RS485 Interrupt
      PIN22 GPIO_25 CAN Interrupt


      Output Interface

      No. Function Description
      1 RS485_A1 RS485-1 A Single
      2 GND_485 RS485-1 Isolated GND
      3 RS485_B1 RS485-1 B Single
      4 RS485_A2 RS485-2 A Single
      5 GND_ISO RS485-2 Isolated GND
      6 RS485_B2 RS485-2 B Single
      7 CANH CAN-H
      8 CAN_GND_ISO CAN Isolated GND
      ​Packing List
      • 1 x RS485 And CAN Module
      • 1 x Screws Pack

      Software Download: RS485 CAN HAT Download
      WIKI for Reference:


      1. All orders will be shipped within 48 hours on receipt of cleared payment on Woking Days. (From Moday to Friday in 24-48 hours as usual, Except for Chinese legal holidays or big holidays or Weekend)
      2. We ship the orders from China, now due to the impact of COVID-19, all the shipping way will have delay include fast shipping way like DHL, the delivery delay is really out of our control, hope to get your understanding and patience.
      3. If you need faster shipment, please choose DHL or EMS or FedEx IP etc(Shipping fare paid by yourself). Or we will deliver via the default method of standard shipping.(Usually by China Post Registered Air Mail with tracking number if the order ammount is more than $9.99); Please contact us to calculate the shipping cost by faster shipping way like DHL, EMS or FedEx...
      4. Please make sure that your shipping address is 100% correct with full name and a right phone number included, the phone number is very important in the shipping address.
      5. We ship items to worldwide with delivery time guarantee. Please understand the unexpected delay during the international shipping.
      6. We usually declare a lower value for all orders to avoid the cutoms tax for our customers, but the buyer still need to do customs clearance themselves if it's a requirement by the destination country.

      [Return & Refund Policy]

      1. If you didn't receive your product after 6 months or it is significantly different to the description, we guarantee to resend new or refund your payment. But due to the shipping delays of international shipment, we hope to get your understanding and wait for some more time.
      2. We provide resend or refund or store coupons for the item you received was substantially different from the item represented on the product detail page.
      3. For the item you received was damaged or defective,please take photos of original package with shipping labels, package weight, package items details as proof to send us to find solutions,thank you!
      4. It is better to reject the package if you find it obviously broken and ask for compensation from your local post office.
      5. We accept any unused item in its original package as return within 7 days of delivery. Buyers must pay for the return shipping fee, provide the tracking number, specific reason for the return.
      6. If buyer's reason lead to the return package due to fail delivery in destination country, the buyers need to pay for resend shipping fee and we deduct shipping fee before issue refund.
      7. We will refund to buyer after we receive the return packages in its original condition package with no items missing. Or buyers could choose to have a replacement.
      8. We accept to refund or resend new for our customers as product quality problem. But for the product value above $30, buyer must return the product to get a refund, the return shipping cost should be negotitated between the buyer and seller as this is a international shipping.
      9. As our products belongs to DIY products, it really need some DIY skills and professional knowledge, also there will be the risk of failure for your DIY projects which may cause your loss such as one or two device burnt or defective due to not proper operation. We can be reponsible for exchange new one or repair for the defective products which you bought from us, but you must send back us the defective product to us and also pay for the return shipping cost. The buyer must bear the shipping cost of return for exchange. We only accept to exchange after we get the defective products received. As it is international shipping, it usually will take a longer time for your return package, please understand about this.


      Geekworm products on the website all support a wholesale price if you need large quantities. You can send us your request about the item you need, item quantities, destination country of shipment. Then we will send you our lowest price according to item quantities, and the shipping cost also will be calculated according to the quantities you need.


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