VLC technology data transfer based on microcontroller STM32

Abstract

Abstract—The paper proposes a data transmission system using white LEDs. This technology uses a microcontroller series STM-32. The transmission uses digital pulse-frequency modulation to encode the binary system. The modulation is implemented using the digital output of the microcontroller. The proposed scheme has allowed to transfer character data with a frequency of 10-3 s. In the period of the improvement of the proposed scheme, the data transmission speed can be increased significantly and to communicate to the CPU clock.