CAN, or Controller Area Network - Can Bus, is a serial communication bus that was created in the 1980s at Robert Bosch GmbH. This project aimed to improve the operation and performance of the ABS system and engine control in cars. From the automotive industry the CAN bus quickly moved to other areas and spheres of our life. Today it is used, among others, in industrial automation and construction. CAN bus does not have a separate master unit, so we include it as a multi-master bus. The bus transmits specific messages, which are then received by all devices, so the communication is broadcast. CAN bus is characterized by automatic operation, hardware error handling and initiated messages that are recognized by identifiers. CAN bus systems are very popular elements, which are used in many technologically advanced and complex projects. In our offer there are CAN bus systems in various variants. You can choose the model best suited to your project in terms of technology.
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Tuya - WiFi smart water or gas valve controller - Moes WV-QY-EU-EN
Index: ISH-23123
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SHT31 - digital humidity and temperature sensor I2C - Adafruit 2857
Index: ADA-05415
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SenseCAP M1 SD Card Replacement Kit - Seeedstudio 114992729
Index: SEE-22567
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CAN-bus modules
Products: 12
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CAN Bus module - TJA1051T/3 - Adafruit 5708
The module is based on the TJA1051T/3 system, enabling the connection of the microcontroller with any extension that communicates via the CAN bus. The module is powered by...
Index: ADA-22791
Index: ADA-22791
SN65HVD230 CAN Board - Waveshare 3945
The module based on the SN65HVD230 allows connecting a microcontroller to the CAN bus. The chip is pinout compatible with the PCA82C250. The module is powered by 3,3 V and...
Index: WSR-06960
Index: WSR-06960
CAN-Bus Shield v2.0 DFRobot - Shield for Arduino
Shield for the Arduino that allows the use of serial CAN bus. It is equipped with chips MCP2515. It has a connector for microSD cards. It works with a voltage from 3.3 V to 5 V.
Index: DFR-06114
Index: DFR-06114
CAN Bus module for Raspberry Pi Pico - Waveshare 23775
Module from Waveshare enabling long-range CAN Bus communication for Raspberry Pi Pico . It is equipped with a CAN MCP2515 driver with an SPI interface and a SIT65HVD230DR...
Index: WSR-22827
Index: WSR-22827
Grove - CAN Bus module - I2C - Seeedstudio 113020111
The MCP2551 and MCP2515 I2C CAN-BUS module allows to use Arduino to communicate with CAN-BUS for e.g. vehicle diagnostics (it works with automotive OBD-II interface). It has...
Index: SEE-20123
Index: SEE-20123
Gravity - CAN-TTL communication module - with SLCAN protocol - DFRobot TEL0150
The CAN to UART and USB converter from DFRobot supports voltage from 3.3 V to 5 V. By sending simple AT commands , you can transmit CAN data and configure module...
Index: DFR-23473
Index: DFR-23473
CAN Bus Module - MCP2515 - SPI - hat for Feather - Adafruit 5709
Module manufactured by Adafruit, enabling communication via the CAN bus. It is compatible with tiles from the Feather family. The built-in MCP2515 integrated circuit allows...
Index: ADA-22888
Index: ADA-22888
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Adafruit RP2040 CAN Bus Feather is an advanced development board with the RP2040 microcontroller and the MCP2515 system , which enables communication via the CAN bus. The...
Index: ADA-23378
Index: ADA-23378
CAN-Bus Shield for Arduino - SparkFun DEV-13262
Shield for Arduino supporting the CAN bus, it uses the chip MCP2515 and MCP2551. On board is a connector D-sub, microSD card slot, a connector to attach the display and GPS...
Index: SPF-02452
Index: SPF-02452
RS485/CAN - Shield for Arduino - Waveshare 10771
Shield that allows you to connect the Arduino to the RS485 interface or CAN bus. It is equipped with drivers: MAX3485 and SN65HVD230 for the CAN, it works with the Uno,...
Index: WSR-04517
Index: WSR-04517
Grove - CAN Bus module - GD32E103 - Seeedstudio 114992978
The module is based on the GD32E103 system, which allows you to connect the microcontroller with the CAN bus . It allows you to use Arduino to communicate with the CAN-BUS...
Index: SEE-21906
Index: SEE-21906
SIM868 GSM/GPRS/GNSS + Bluetooth - communication module for Raspberry Pi Pico - Waveshare 20268
CAN FD Expansion HAT is a CAN bus expansion overlay produced by Waveshare. It supports the original CAN 2.0 protocol and the CAN FD expansion with higher data throughput....
Index: WSR-20081
Index: WSR-20081
See also
CAN bus (CAN bus) - The most important information
CAN communication ( CAN system) has become one of the most popular standards of industrial communication networks - in Poland it is in second place after the valued Profibus standard. Using the CAN bus , control devices transmit signals to robots (or automata).
The basis of operation of the CAN network (controller area network)
It is also perfect for communication (data transmission) between sensors, controllers and recorders . It is characterized by stability and high data transfer speed, but remember that the speed decreases significantly with the length of the cable. In other words, as distance increases, speed decreases.
CAN networks are useful in the automation of production lines, various machine systems, for controlling furnaces, cold stores and printers. It is worth knowing that the CAN bus topology is the pillar on which the operation of the CAN network is based.
CAN bus - Modules, converters and overlays - What do we offer?
Our offer mainly includes modules that allow you to easily connect your microcontroller to the CAN bus . Overlays for popular boards (microcontrollers) are often perfect for many applications - we have a wide selection of overlays for Arduino.
Often, communication with the device takes place via the SPI interface, and the shield has the microcontroller pins placed on top. The CAN communication bus is still most often used in the automotive industry - there is, among others, an Arduino shield available, adapted to work with a standard OBD-II car connector and containing instructions for an example of connecting the device. The device can be used, among others, for error control and checks, for example, whether the airbags are activated.
It is worth remembering that when using the CAN bus and boards using ATmega microprocessors, due to their lower efficiency, the functionality of the bus will be reduced. We also offer modules with CAN interfaces - communication in them is usually carried out via a USB connector and a UART-RX, TX serial interface. On Windows or Linux systems it will appear as a virtual COM port. If you have any questions or concerns regarding the CAN bus, please contact us by e-mail, telephone or via the form available on the website.
CAN bus - FAQ
CAN is a multi-master serial bus standard for connecting electronic control units (ECUs), also known as nodes. Two or more nodes are required for CAN communication. They were used, among others, in motorcycles and cars. We have more information on the Botland Blog .
CAN-BUS is the original serial bus for communication between modules. It was created by Robert Bosch in 1983. Then the idea was implemented, among others, by Intel and Philips, and over time CAN-BUS appeared in Mercedes cars from 1991.
CAN H and CAN L come together. These are the transceiver's differential signals. The purpose of the CANH and CAN L "test" is to determine the physical integrity of the CAN (Controller Area Network) bus by checking the low (CAN-L) and high (CAN-H) line voltages. When the dominant bit is transmitted, the CAN High voltage increases and the CAN Low voltage decreases.