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Abstract A light-weighted low-consumption portable digital display is designed and developed for outdoor use with the capability to be charged by solar energy. A Raspberry Pi microprocessor controls the data display process and provides the live data tracking functionality through a mobile application. The custom-built display board is designed by arranging LED light strips into a matrix formation that is ultra-light and low consumption while allowing the user to change the text color, size, and brightness. The display process is wirelessly interfaced with the user through a mobile application. The entire system is powered by a battery storage system (50Ah LiFePo4) that is fed by a solar photovoltaic panel (175 watts). The structure is made of lightweight materials that make the system portable.
Fuentes et al. (Sat,) studied this question.