View source for Seeed Studio CANBus Shield V1.2

[[Image:TArduinoSeeedStudioCANBusShieldV1.2.png]]

== Summary ==
The Seeed Studio CANBus Shield V1.2 provides Controller Area Network (CAN) bus communication capabilities with Grove I2C and serial interfaces for automotive and industrial applications.

== Description ==
This CAN bus shield supports standard CAN 2.0A and 2.0B protocols with configurable bus speeds up to 1Mbps. It features a dedicated chip select pin, configurable clock frequency, and supports various operational modes including listen-only, loopback testing, and one-shot transmission. The shield includes Grove I2C and serial interfaces for easy integration with other components, making it suitable for automotive diagnostics, industrial automation, and robotics applications requiring reliable communication.

<b>Diagram:</b>

[[Image:TArduinoSeeedStudioCANBusShieldV1.2.Preview.png]]

== Properties ==
*'''Bus Speed (kBPS)''' – CAN bus communication speed in kilobits per second (Default: 500kBPS).
*'''Chip Select Pin''' – CAN controller chip select pin number (Default: 9).
*'''Clock Frequency (MHz)''' – CAN controller clock frequency in MHz (Default: 16MHz).
*'''Elements''' – Configurable CAN bus elements (Default: 0 items).
*'''Enabled''' – Enables/disables CAN bus functionality (Default: True).
*'''Listen Only''' – Enables listen-only mode (Default: False).
*'''Loopback''' – Enables loopback testing mode (Default: False).
*'''One Shot''' – Enables one-shot transmission mode (Default: False).
*'''Sending''' – Message transmission settings:
**'''Priority''' – Message transmission priority (Default: 0).
**'''Send Timeout (mS)''' – Transmission timeout in milliseconds (Default: 500ms).
*'''Sleep''' – Enables sleep mode (Default: False).
*'''SPISpeed''' – SPI communication speed (Default: 8000000).
*'''Name''' – Component identifier (Default: Seeed Studio CANBus Shield V1.2).

== Pins ==
=== Input Pins ===
*'''CAN RX''' (can) – CAN bus receive input.
*'''Grove I2C In''' (i2c/grove) – Grove I2C interface input.
*'''Serial In''' (serial) – Serial communication input.
*'''Reset In''' (digital) – Reset control input.
*'''Chip Select In''' (digital) – CAN controller chip select input.
*'''Power''' (power) – Shield power supply input.

=== Output Pins ===
*'''CAN TX''' (can) – CAN bus transmit output.
*'''Sending Out''' (digital) – Transmission status output.
*'''Sent Out''' (digital) – Message sent confirmation.
*'''Failed Out''' (digital) – Transmission failure status.
*'''Extended Request Out''' (digital) – Extended frame request output.
*'''Message Out''' (digital) – CAN message data output.

== Categories ==
*[[Image:Shield.png]] [[Category:Shield]] – Arduino shield form factor components.
*[[Image:CANBus.png]] [[Category:CAN Bus]] – Controller Area Network components.
*[[Image:Automotive.png]] [[Category:Automotive]] – Automotive communication components.
*[[Image:Industrial.png]] [[Category:Industrial]] – Industrial communication components.
*[[Image:Grove.png]] [[Category:Grove]] – Grove interface components.
*[[Image:I2C.png]] [[Category:I2C]] – I2C communication components.
*[[Image:Serial.png]] [[Category:Serial]] – Serial communication components.
*[[Image:SPI.png]] [[Category:SPI]] – SPI communication components.