RS485 CAN HAT for Raspberry Pi

Description

The RS485 CAN HAT will enables your Pi to communicate with other devices stably in long-distance via RS485/CAN functions.
Features

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

RS485 CAN HAT dimensions
Development Resources

Wiki : www.waveshare.com/wiki/RS485_CAN_HAT