Browsing by Author "Oloruntoba Christopher MOHAMMED"

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    Development of an Automated Electronic Estimation Weighing Scale
    (College of Engineering, Afe Babalola University, Ado-Ekiti, Nigeria, 2023-06-21) Olalekan OGUNBIYI; Oloruntoba Christopher MOHAMMED; Lambe Mutalub ADESINA
    Analog weighing scales suffer from a lack of precision while reading the output and they can easily be manipulated by any technically biased individual. In this paper, the development of an automated and price estimating weighing device is considered. It aims at developing a means to a framework to evaluate estimated weight in analog to digital forms, such as to obtain higher precision in estimation and calibration. The circuit consists of a Load Cell as the sensor, an amplifier to boost the low signal from the sensor, an Atmega328 microcontroller, a 16x2 Liquid crystal display, and a few additional glue components. The 20 kg load cell converts the pressure from the load to an equivalent electrical signal which will be sent to the Hx711 IC module. Hx711 amplifies and processes the corresponding output to the Atmega328 microcontroller. The system uses the 4x3 keyboard to input the unit cost per kg to the electronic scale. The microcontroller automatically adjusts the signals with the load cell amplifier module's guide, thus sending the estimated cost to the Liquid crystal display module. The circuit was designed, constructed, and tested to show that a computerized electronic weighing system can be locally and cheaply made. Comparison with the state-of-the-art scale shows that the constructed digital scale was accurately calibrated without errors.