Isolated RS232 RS485 CAN FD Expansion Board For Raspberry Pi
Isolated RS232 RS485 CAN FD Expansion Board For Raspberry Pi
The RS232 RS485 CAN Board is an industrial isolated interface expansion board designed for Raspberry Pi 4B / Raspberry Pi 5, provides a variety of industrial communication interfaces: 2x RS485, 1x RS232, 1x CAN FD, and 1x CAN, each with electrical isolation. Onboard lightningproof, anti-electrostatic protection, etc. for more secure and reliable communication.
Comes with an industrial rail-mount enclosure for easy integration in industrial control applications. Provides sufficient internal space for users to stack other HATs or expansion boards, and reserved installation space of PCIe adapter board for Raspberry Pi 5, which is more convenient for further expansion.
- Based on Raspberry Pi 40PIN GPIO header, suitable for Raspberry Pi 4B and Raspberry Pi 5
- Adopts SC16IS752 and SP485 combination scheme, expands SPI to 2x RS485 interface
- Adopts MCP2515 and SN65HVD230 combination scheme, expands SPI to 1x CAN interface
- Adopts MCP2518FD and MCP2562FD combination scheme, expands SPI to 1x CAN FD interface
- Adopts Raspberry UART and SP3232EEN combination scheme, expands UART to 1x RS232 interface
- Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & ESD protection
- Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock proof performance
- Onboard unibody power supply isolation, needs no extra power supply for the isolated terminal, provides stable current/voltage outputs of RS232, RS485, CAN, and CAN FD interfaces, and improves the anti-interference and anti-shock performance
- Onboard digital isolation chip for safer signal isolation communication and better stability and anti-interference performance
- Onboard external power supply screw terminal for 7~36V wide voltage power input, combines with Pi5 Connector Adapter (B) to power the Raspberry Pi and the expansion board at the same time
- Onboard 120Ω terminal resistor, configured by jumper
- Reserved interrupt resistor pad for flexible switching the interrupt pin if there is pin conflict when working with other HATs
- Comes with online development resources and manual (examples for Raspberry Pi Python/C)
Specifications
| Product Type | Industrial isolated interface expansion board for Raspberry Pi | ||
|---|---|---|---|
| Applicable Board | Raspberry Pi 4B, Raspberry Pi 5 | ||
| Communication interface | SPI + UART | ||
| extended Industrial interfaces | interface | Chip Scheme | Baudrate |
| 1-ch isolated CAN FD | MCP2518FD + MCP2562FD | 5kbps ~ 8 Mbps | |
| 1-ch isolated CAN | MCP2515 + SN65HVD230 | 5kbps ~ 1 Mbps | |
| 2-ch isolated RS485 | SC16IS752 + SP485 | 300 bps ~ 921600 bps | |
| 1-ch isolated RS232 | SP3232EEN | ||
| Expandability | Supports extending functions such as NVME, ETH, USB, 4G/5G for Raspberry Pi 5 through PCIe interface | ||
| Supports stacking with other HATs through 40PIN GPIO header for Raspberry Pi 4B/5 (make sure there are no pin conflicts and the dimension is compatible) | |||
| power supply methods (choose one of two) | 5V Type-C power port of Pi5 Connector Adapter (B) | ||
| External screw terminal for DC 7-36V wide voltage input | |||
| Dimensions | L × W × H: 154.6 × 83.7 × 59 mm | ||
| Enclosure | Eco-friendly plastic case, supports wall-mount & rail-mount installation | ||
Based on Raspberry Pi 40PIN GPIO header
* for reference only, the Raspberry Pi 5 and PCIe board are not included.
Onboard Type-C 5V port and DC 7~36V wide voltage screw terminal, can be powered directly from a Raspberry Pi power supply, or used in industrial wide-voltage power supply scenarios
Supports Type-C 5V power supply
Supports 7~36V wide range voltage input
Supports connecting with Multiple Peripherals Via CAN, RS485, And RS232 Interfaces
Provides enough internal space of the case for users to connect other modules and expand more functions
Extending NVME, ETH, USB, and 4G/5G, etc. for Pi 5 through PCIe or 40PIN GPIO
PCIe adapter Board Compatible
Supports stacking with some HATs* through 40PIN GPIO header for Pi 4B/5
* Note: make sure there are no pin conflicts and the dimension is compatible
* for reference only, please refer to the Package Content for a detailed part list
Assembly instruction
* for reference only, please refer to the Package Content for a detailed part list
With rail-mount buckle, supports 35mm standard guide rail
Wall-mount support
Interface Introduction
Outline dimensions
