Development of wireless controller area network using low cost and low power consumption ARM microcontroller for solar car application

In this paper, a wireless controller area network (CAN) was developed using low cost microcontroller. The system is low cost and low power consumption for CAN application in order to receive data such as velocity, temperature and batteries power from Maximum Power Point Tracking (MPPT). A programming was written for the microcontroller to receive data from MPPT and sent it out through wireless transceiver for a chase car to determine whether the solar car is in the optimum condition. However the microcontroller receives data at a baud rate of 1Mbps need to down rates to 9600bps due the maximum limitation of the wireless transceiver. This may cause losses of data during transmission and as such an interval is introduced between CAN messages by using interrupt function.