Waveshare RS485 CAN HAT for Raspberry Pi
The Waveshare RS485 CAN HAT for Raspberry Pi will enable your Pi to communicate with other devices (e.g. the Huvud Controller Board) via RS485/CAN over long distances.
Features
- Raspberry Pi connectivity, compatible with Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+/4B
- 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 suppresses surge voltages and transient spike voltages in the circuit for the RS485 transceiver
- Reserved control pins, allows to work with other controller 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
Pinout:
| PIN | Raspberry Pi (BCM) | DESCRIPTION |
|---|---|---|
| 3V3 | 3V3 | 3.3V Power |
| GND | GND | Ground |
| SCK | P11 / SCLK | SPI clock input |
| MOSI | P10 / MOSI | SPI data input |
| MISO | P9 / MISO | SPI data output |
| CS | P8 / CE0 | SPI chip selection |
| INT | P25 | Interrupt |
| RXD | P15 / RXD | RS485 UART receive |
| TXD | P14 / TXD | RS485 UART transmit |
| RSE | P4 | RS485 TX/RX control (auto control by default, some soldering is required to enable manual control), high for TX, low for RX |
More Resources in the Waveshare wiki
Package Content
- RS485 CAN HAT
- RPi screws pack (2pcs)
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