> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Isolated RS485 CAN HAT (B) For Raspberry Pi, 2-Ch RS485 and 1-Ch CAN, Multi Protections

**Type:** Product page · **SKU:** WS-23227 · **Brand:** [Waveshare](https://core-electronics.com.au/brands/waveshare-in-australia)
**Page:** https://core-electronics.com.au/isolated-rs485-can-hat-b-for-raspberry-pi-2-ch-rs485-and-1-ch-can-multi-protections.html ([markdown](https://core-electronics.com.au/isolated-rs485-can-hat-b-for-raspberry-pi-2-ch-rs485-and-1-ch-can-multi-protections.html.md))

Isolated RS485 CAN HAT (B) For Raspberry Pi, 2-Ch RS485 and 1-Ch CAN, Multi Protections...

## Pricing

- **Price:** $36.05 (inc GST) — $32.77 AUD, exc GST
- **Quantity discounts:** 10+ $31.46 (exc GST) · 25+ $30.48 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 9 today, and up to 300 more in 12–19 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=WS-23227:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/WS-23227:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

This device is designed to be compatible with Raspberry Pi boards through its standard 40-pin GPIO extension header. It offers a single channel for SPI to CAN conversion and two channels for SPI to RS485 conversion. With an onboard voltage regulator, it can accept power inputs ranging from 8 to 28 volts and is capable of powering the Raspberry Pi. The device is equipped with a transient voltage suppressor to protect against surges and transient spikes. Additionally, it includes a resettable fuse and protection diodes to ensure stable current and voltage outputs, along with safeguarding against over-current and over-voltage situations.

## Specifications

- **RS485:** 2 Channels
- **CAN**: 1 Channel
- **CAN transceiver**: SIT65HVD230DR/SN65HVD23D
- **CAN Baud Rate:** 1,000,000
- **RS485 transceiver**: SP3485
- **RS485 baud rate**: 300 to 921600 bps
- **External power supply**: 8V to 28V
 
## What's On Board ![](https://core-electronics.com.au/attachments/localcontent/RS485-CAN-HAT-B-details-intro_25272143dcc.jpg)

1. **MCP2515:** CAN controller
2. **SIT65HVD230DR/SN65HVD23D:** CAN transceiver
3. **SP3485:** RS485 transceiver
4. **SC16IS752:** UART expansion
5. **P163M31:** digital isolator
6. **B0505LS-1W:** Power supply isolation
7. **Power supply interface:** DC 8~28V, can power the HAT and Raspberry Pi
8. **RS485 bus interface:** Connect via screw terminals/pin header
9. **CAN bus interface:** Connect via screw terminals/pin header
10. **Raspberry Pi GPIO header**
11. **SPI control header:** for connecting with host boards like STM32/Arduino
12. **CAN terminal resistor jumper:** Switch to 120**Ω** by default
13. **RS485 Terminal resistor jumper:** Switch to 120**Ω** by default
14. **Power Indicator**
 
## Pinout 

## ![](https://core-electronics.com.au/attachments/localcontent/RS485-CAN-HAT-B-details-3_26343ff1e02.jpg)![](https://core-electronics.com.au/attachments/localcontent/RS485-CAN-HAT-B-details-inter_23777c19105.jpg)

## Dimensions

##  ![](https://core-electronics.com.au/attachments/localcontent/RS485-CAN-HAT-B-details-size_22475915786.jpg)

## Documents 

- Wiki
 
## Shipping List

- 1 x RS485 CAN HAT (B)
- 1 x 2x20PIN female header
- 1 x Screws pack

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/C/E/CE09198-1.jpg)