Product description: CAN FD Expansion HAT - 2 channel CAN FD isolated overlay - for Raspberry Pi - Waveshare 17075
The CAN FD Expansion HAT is a CAN bus expansion overlay manufactured by Waveshare. It supports original CAN 2.0 protocol and CAN FD extension with higher data rate. It has up to two channels. With many built-in protection circuits, including 500W surge protection, ESD protection, short circuit protection and electrical isolation, communication is definitely safer and much more reliable. The CAN FD Expansion HAT has two chips built in: MCP2518FD - CAN controller, and MCP2562FD - bus transmitter-receiver.
CAN FD Expansion HAT and Raspberry Pi connection. Only the overlay is sold - Raspberry Pi needs to be purchased separately.
Product compatible with Raspberry Pi and Arduino!
The manufacturer provides a product wiki page, which contains sample program code and instructions for connecting the overlay, among other things.
CAN FD 2-channel isolated overlay for Raspberry Pi.
CAN FD Expansion HAT Feature Overview
- Equipped with 40PIN GPIO connector for Rapberry Pi
- Also compatible with Jetson Nano and Arduino
- Supports both traditional CAN 2.0 and CAN FD protocols
- Equipped with SPI breakout control pins for connection to host control boards such as STM32 / Arduino
- Built-in electrical isolation - isolated voltage up to 5 kV, stable operation, much higher anti-interference capability
- Built-in surge protection, ESD protection, short circuit protection, thus safer communication
- Built-in voltage regulator 3.3 V / 5 V
- Built-in terminal resistor 120 Ohm, jumper configurable
- Manufacturer provides programming resources and manual (examples for Raspberry Pi / Arduino)
Technical specification of the frontend
- Type: CAN and CAN FD extension overlay
- Integrated circuit: MCP2518FD and MCP2562FD
- Number of channels: 2
- Communication interface: SPI
- Supply voltage:
- 5 V via Raspberry Pi
- 8 V to 26 V DC at screw terminal
- Logic level: 3.3 V / 5 V
- Overlay dimensions: 65 x 56.5 mm
Kit contents
- CAN FD Expansion HAT
- Header 2x20pin female - 1 piece
- Screws - 4 pieces
- Nylon spacers - 2 pieces
CAN FD Expansion HAT - rear view.
Arrangement of elements on the overlay.
Arrangement of elements on the overlay
1. MCP2518FD controller
2. MCP2562FD transmitter-receiver
3. SI8642ED digital isolator
4. MP1584EN power supply
5. RT9193-33 power supply
6. B0505LS-1W power isolation module
7. Raspberry Pi 40PIN standard GPIO header
8. CAN bus screw terminal
9. External power supply terminal
10. MCU control pins for use with motherboards such as Arduino
11. 120 Ohm termination resistor switch
12. 3.3 V / 5 V logic level switch
13. CAN mode selector
A: CAN_0 and CAN_1 use two separate SPIs (default)
B: CAN_0 and CAN_1 share one SPI
14. Power indicator
15. Fuse
16. Power reverse protection diode
