Product Description: RS485 CAN extension with digital isolation for Nvidia Jetson Nano - Waveshare 22026
The expansion board for the minicomputer Nvidia Jetson Nano for an additional communication interface - RS485 / CAN . The Waveshare module is secured with additional digital isolation to ensure better communication stability and anti-interference. The MCP2515 system is responsible for CAN communication via SPI communication, compatible with the SIT65HVD230DR transmitter / receiver. RS485 SP3485 is controlled by UART. Supports half-duplex communication with automatic TX / RX control support without programming.
RS485 CAN extension for Nvidia Jetson Nano. The subject of the sale is the expansion module itself, the Nvidia minicomputer can be purchased separately. 
Nvidia Jeston Nano expansion module with RS485 CAN communication.Main features of RS485 CAN module for Nvidia Jetson Nano
- Standard 40-pin GPIO connector of the Nvidia Jetson Nano minicomputer
- Built-in CAN MCP2515 controller available via SPI interface, compatible with SIT65HVD230DR transceiver
- RS485 interface controlled by UART, half-duplex communication, support TX / RX automatic control without programming, built-in SP3485 transceiver
- Built-in TVS (Transient Voltage Suppressor) protection, effectively suppresses overvoltage and transient voltage in the circuit for RS485, anti-electrostatic
- Built-in digital isolation chip, safe communication signal isolation, and better stability and anti-interference performance
- Reserved control pins allow you to work with other boards
The manufacturer provides a user guide with sample program codes, making it easier to start working with the module.
The distribution of elements on the board
- CAN controller MCP2515
- CAN transceiver SIT65HVD230DR
- RS485 SP3485 transceiver
- Power isolation B0505LS
- ADUM1412 digital isolator circuit
- Optoisolation system PC817X3CSP9F
- TVS (Transient Voltage Suppressor)
- RX / TX indicator
- Power indicator
- RT9193-33 power supply
Arrangement of components on the expansion board.
RS485 CAN extension with digital isolation for Nvidia Jetson Nano - Waveshare 22026.
RS485 CAN extension specification
- CAN controller: MCP2515
- CAN transceiver: SIT65HVD230DR
- RS485 transceiver: SP3485
- Working voltage: 3.3V
- Mounting holes size: 3 mm
- Dimensions: 100 x 79 mm
Kit contents
- RS485 CAN extension with digital isolation for Nvidia Jetson Nano - Waveshare 22026
- A set of mounting screws
