The MCP2551 is a CAN transceiver module. It is capable of reading data from a CAN bus and transmitting and receiving data from a microcontroller or CAN controller.

The CAN-compatible device that you want to add to the CAN bus connects to the CANH and CANL pins. A CAN-compatible device has 2 terminals, a CANH and a CANL. You connect the CANH terminal of the device to the CANH terminal of the MCP2551 and the CANL terminal of the device to the CANL terminal of the MCP2551. All devices that you want to connect to the CAN bus are connected to the CANH and CANL lines. Up to 112 nodes can be connected to the CAN bus.

Features

•  Implements CAN V2.0B at up to 1 Mb/s
•  Up to 112 nodes can be connected
•  Operating voltage: DC 4,5-5.5V
•  Size: 34 x 31.3mm

Watch these great YouTube series by controllers tech showing you how to professionally use the MCP2551 CAN transceiver module with STM32 , blue bill and black bill microcontrollers