Product description
RS485 CAN Shield from Waveshare is a combined module that enables both RS-485 and CAN communication. Compatible with development boards such as Arduino UNO R3/R4 and STM32-based NUCLEO/X-NUCLEO.
Features:
- Dual functionality: supports both RS-485 and CAN via separate transceivers.
- Powered by 3.3 V, applies to both the RS-485 section (MAX3485) and the CAN section (SN65HVD230).
- The CAN transceiver can be configured in different operating modes: high-speed, slope, and wait, for improved adaptation in noisy environments.
Specifications:
- MAX3485 – RS-485 transceiver: Half-duplex communication; terminals A and B for differential signal; ports RO (receiver output), DI (driver input), /RE and DE for controlling receive and transmit modes. Includes a termination resistor (100 Ω) between A and B.
- SN65HVD230 – CAN transceiver (Texas Instruments): Signals for CANH (High), CANL (Low); D (driver input), R (receive output), Vref (reference voltage), and RS control pin for mode selection. Designed for high data integrity and strong noise immunity.