ESP32 CAN Bus Tutorial | Interfacing MCP2515 CAN Module with ESP32
𝗩𝗶𝗱𝗲𝗼 𝗗𝗲𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻:
In this tutorial, we will explore the CAN Bus communication protocol by interfacing the MCP2515 CAN Bus Module with ESP32 microcontroller. Our objective is to transmit data from a DS18B20 temperature sensor over a specified distance using the CAN protocol. In earlier tutorial, we used MCP2515 with Arduino for CAN Bus communication.
The Controller Area Network (CAN) Bus is widely used in industrial settings and automotive diagnostics due to its ability to cover long distances, moderate communication speed, and high reliability. The standard protocols like UART, SPI, and I2C are less reliable over long distances. But CAN is ideal for vehicular systems and environments where communication occurs over extensive wiring. CAN communication typically supports speeds ranging from 50 Kbps to 1 Mbps and can maintain signal integrity over distances from 40 meters at 1 Mbps to up to 1000 meters at 50 Kbps.
We will use a pair of ESP32 boards and MCP2515 modules to demonstrate the transmission of DS18B20 temperature sensor data. The transmitted data will be received by the receiver over and displayed on OLED Display. Let’s get started with today’s guide on CAN Bus communication using the Microchip MCP2515 CAN Bus Module.
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