Two toys vehicles interactions using communication protocol for visible light communication

These paper introduce data transmission system that been developed and demonstrated for two toys vehicles based on light emitting diode (LED) which is highly reliable for short distances communication. Communication protocol A and B has been deployed for data transmission and the feasibility of both protocols is tested. Data transmission performances such as photo-detector (PD) angle and transmission range have been observed and analyzed. We have successfully built a prototype of our system and demonstrated maximum photo-detector (PD) angle of 23 degree as well as maximum transmission range of 1.9 meter. This project contributes to further enhance the current LED signaling technology using visible light communications (VLC). The LED not only provides a visual indicator but also act as a communication channel for the vehicles to exchange information as well as providing the acknowledgement for the rear toy vehicles regarding the intention of the front toys vehicles.