SPECIFICATIONS

Product introduction:

This is a dual-channel CAN bus isolated expansion board specially designed for the Raspberry Pi. It supports CAN fd (CAN with flexible data rate),a variety of on-board protection circuits,strong anti-interference ability,and works.

Stable, suitable for automotive or industrial automation.

Features:

Not only support the traditional CAN 2.0 protocol,but also the CAN fd protocol. The data transmission rate is faster and the data throughput is greater.

Also have a variety of on-board protection circuits, including 500M lightning surge, static protection, short circuit protection and electrical isolation, making communication more secure and reliable.

Characteristics:

Based on Raspberry Pi 40pin GPIO interface, suitable for Raspberry Pi series motherboards

Supports traditional CAN2.0 and CAN fd protocols

Lead out SPI control interface for easy access to main control boards such as STM32/for Arduino

On-board electrical isolation circuit, isolation voltage up to 5KV, good stability, stronger anti-interference

On-board lightning protection, anti-static and anti-short circuit protection

On-board level shifting circuit, which can switch the working level of 3.3V and 15V through a jumper cap

1200 termination resistors on board, can be set by jumper cap

Product parameters:

CAN controller: MCP2517FD

CAN transceiver: MCP2562FD

Communication method: SPI (by default, two independent SPI communication are used, which can be set to one SPI through solder joints)

Power supply: external power supply terminal or Raspberry Pi

Terminal input voltage: DC 8 ~ 26V

Working voltage: 5V

Logic voltage: 3.3V 5V

1.MCP2515 controller chip

2.SN65HVD230 transceiver chip

3.SI8642ED digital isolator chip

4.RT9193-33 power chip

5.B0505LS-1W power isolation module

6. SM24CANB transient suppression diode array

7. Raspberry Pi GPIO interface

8. CAN bus interface

9.MCU control interface

10.120Ω terminal resistance switch

11.3.3V/5V logic voltage switch

12. Power indicator

Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards

Adopts SC16IS752+SP3485 dual chip combination, converts SPI to RS485, data rate up to 921600bps

Allows transceiving data manually or automatically, configured by DIP switch

Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightning-proof & anti-electrostatic

Onboard auto-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance

Onboard LEDs for indicating the power and transceiver status

Breakout SPI control pins, for connecting with host control boards like Arduino

Comes with development resources and manual (examples in C and Python)

Features:

• Raspberry Pi connectivity, compatible with Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+

• CAN function, onboard CAN controller MCP2515 via SPI interface, onboard transceiver SN65HVD230

• RS485 function, controlled via UART, half-duplex communication, supports automatic TX/RX control without programming, onboard transceiver SP3485

• Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit for RS485 transceiving, lightning-proof & anti-electrostatic

• Reserved control pins, allows to work with other control boards

• Comes with development resources and manual (examples in wiringPi/python)

Specifications

• Operating voltage: 3.3V

• CAN controller: MCP2515

• CAN transceiver: SN65HVD230

• 485 transceiver: SP3485

• Dimension: 65mm x 30mm

• Mounting hole size: 3.0mm

Pinouts