This article will give information about how Arduino ADC can be used to get the data from DHT11 Humidity and Temperature sensor and to transfer it over the CAN bus using CAN controller MCP2515. It will give you an in-depth idea about SPI interface with Arduino and CAN controller and Commands used for the configuration of CAN Communication.This project is designed to read Humidity and Temperature using DHT11 And transmitting by CAN protocol implementation. The Humidity and Temperature changes are measured by the ADC and transmitted to the other node using the CAN Bus and the data is received at the other node and displayed in an LCD.