Energy efficient solar based digital electronic weighing machine

The aim of proposed system is to develop an energy efficient digital electronic weighing machine which operates with the help of solar PV panel. This system describes the design and implementation of energy efficient, low cost and portable solar powered digital electronic weighing system. The system has highly reduced circuitry as it utilizes a standalone microcontroller chip. As this machine does not use the electricity to charge, it saves the electrical energy. This article gives a detailed weighing controller design method. This system introduces the design and realization of automatic weighing system based on 8-bit high-precision PIC Controller. From hardware design and software design the paper introduces the interface circuit design between weighting sensor and PIC controller together with the application. The working principal of the emergency light circuit depends upon the status of light dependent register (LDR). When light dependent register is on that time emergency circuit is off and when light dependent register is off that time emergency circuit is on. The system designed measures weights ranging from 0-40 kg.