CAN bus (Controller Area Network)

See the reference side-by-side comparison Comparison of network buses for Arduino usage

Characteristics
	CAN bus (Controller Area Network)

Design date	1983
Max nodes	2²⁹
Max distance	40 m
Bit rates	1 Mbit/s
Number of data wires / pin
Communication type	Half-duplex
Broadcast
Error detection	Yes
Direct Arduino compatibility	- via adapter (ie: MCP2515)
Links
Wikipedia	https://en.wikipedia.org/wiki/CAN_bus
Website
Arduino library	https://github.com/autowp/arduino-mcp2515

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