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Pricelist: Retail Price (B2C) Pricelist
MCP2515 CAN Bus Module with TJA1050 Transceiver – SPI Interface Controller

MCP2515 CAN Bus Module with TJA1050 Transceiver – SPI Interface Controller

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ParameterDetailed Specification
CAN ControllerMicrochip MCP2515
CAN TransceiverTJA1050
Communication InterfaceSPI (Serial Peripheral Interface)
Operating Voltage5V DC
Clock Frequency8MHz Crystal Oscillator
CAN SpecificationV2.0B (1 Mb/s)
Number of NodesUp to 110 Nodes on a single bus
Standard Frame11-bit Identifier
Extended Frame29-bit Identifier
Price
₹ 110.17 ₹ 110.17
(Tax included)

Product Description

Enable high-speed industrial communication in your projects with the MCP2515 CAN Bus Module. This module acts as a bridge between your microcontroller's SPI port and the Controller Area Network (CAN) bus, which is the standard for automotive and industrial data transmission. At Robogears, we recommend this module for building OBD-II scanners, vehicle telemetry systems, and long-distance sensor networks. It combines the MCP2515 standalone CAN controller with the TJA1050 high-speed transceiver, providing a complete physical and data-link layer solution. Whether you are hacking your car's dashboard or networking multiple robots at your Pimpri workshop, this 5V module ensures robust, error-resistant data transfer over long cable lengths.

Detailed Key Features

  • Full CAN V2.0B Support: Capable of transmitting and receiving both standard (11-bit) and extended (29-bit) data frames at speeds up to 1 Mb/s.

  • SPI Interface: Uses standard SPI pins (MOSI, MISO, SCK, CS), allowing it to be easily interfaced with Arduino Uno, Mega, Nano, and STM32.

  • Hardware Filters & Masks: Features two receive buffers with three mask registers and six filter registers to offload message filtering from your main CPU.

  • TJA1050 Transceiver: Provides the physical interface to the bus with high electromagnetic immunity (EMI) and low electromagnetic emission (EME).

  • On-board Termination: Includes a 120-ohm termination resistor (usually enabled via a jumper) to prevent signal reflections on long bus lines.

All Technical Details

  • Pin Definition:

    • VCC/GND: 5V Power Input.

    • CS/SCK/MOSI/MISO: SPI Communication pins.

    • INT: Interrupt pin (alerts the MCU when a message is received).

    • CANH / CANL: Differential CAN bus signal lines.

  • Low-Power Mode: Supports a sleep mode with wake-up interrupt to conserve energy in battery-powered nodes.

  • Reliability: Features automatic retransmission of lost packets and powerful error detection logic.

Prototyping & Engineering Tips (Robogears Exclusive)

  • The 120-Ohm Rule: At our Pimpri facility, we always remind users that a CAN bus must have a 120-ohm resistor at each physical end of the cable. If you only have two modules in your test setup, ensure the termination jumpers are closed on both.

  • Voltage Awareness: While the MCP2515 chip can run at 3.3V, the TJA1050 transceiver requires 5V to function correctly. If you are using a 3.3V MCU (like an ESP32), power the module with 5V but use a level shifter on the SPI lines to protect your microcontroller.

  • Clock Speed Configuration: Most Arduino libraries default to a 16MHz clock. Since this module uses an 8MHz crystal, you must explicitly set the clock speed to 8MHz in your code (e.g., CAN.begin(CAN_500KBPS, MCP_8MHz)) or your baud rate will be incorrect.

  • Twisted Pair Wiring: For reliable communication over distances greater than 2 meters, use a shielded twisted-pair cable for the CANH and CANL lines to minimize electrical interference.

Package Includes

  • 1 x MCP2515 CAN Bus Module with TJA1050 Transceiver

Image Disclaimer

Product images are shown for illustrative purposes only. The color of the PCB (typically Blue) or the specific brand of the crystal oscillator may vary between batches, but the MCP2515+TJA1050 technical performance and 1Mb/s CAN V2.0B capability remain as described.