2-Channel Isolated CAN Expansion HAT for Raspberry Pi

This is a 2-Channel CAN bus expansion HAT designed for Raspberry Pi, supports CAN2.0, features multi onboard protection circuits, high anti-interference capability, and stable operation. It suits for fields such as automotive devices or industrial automation.CAN module could process packets transmit/receive on CAN bus. Packets transmit: first store packet to related buffer and control register. Use SPI interface to set the bits on control register or enable transmit pin for transmitting. Registers could be read for detecting communication states and errors. It will first check if there are any errors of packets detected on CAN bus, then verify it with filter which is defined by user. 

Features:

• Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
• Adopts MCP2515 and SN65HVD230 dual chips combined solution, allows 2-channel CAN communication
• Integrated power isolation, providing stable isolated voltage, requires no extra power supply for the isolated terminal
• Onboard digital isolator, signal isolation makes the communication more safe, more stable, and better anti-interference
• Onboard TVS (Transient Voltage Suppressor) diode, provides ESD protection and transient peak voltage protection
• Onboard voltage translator, select 3.3V/5V operating voltage by jumper
• Onboard 120Ω terminal resistor, configured by jumper
• Breakout SPI control pins, for connecting with host control boards like STM32/Arduino
• Comes with development resources and manual. 

Specifications:

• CAN controller: MCP2515
• CAN transceiver: SN65HVD230
• Communication interface: SPI
• Operating voltage: 5V
• Logic level: 3.3V/5V
• Dimensions: 65.0 x 56.5 mm

2-Channel CAN Capability
MCP2515 CAN controller + SN65HVD230 CAN transceiver

What Can It Do?
Enable Isolated and stable CAN Bus Capability for your Raspberry Pi

Flexible and Handy Jumpers
Easily select 3.3V / 5V operating voltage, or Enable/Disable 120Ω terminal resistor, via onboard jumpers

Pinout Definition

Package Includes:

• 2-CH CAN HAT x1
• Standoffs pack (2pcs) x1
• 2×20PIN female header x1

Documents / Downloads

• Schematic
• SN65HVD230 Data Sheet
• MCP2515 Data Sheet
• Wiki (More Details)