Portable waste bank for plastic bottles by weight and bottle categories

Abstract

Garbage is basically a material that is wasted or disposed of from a source resulting from human activities or natural processes that have no economic value, and can even have a negative value if it is not handled properly. Of the various kinds of waste that exist, one type of waste that can still be reused is plastic bottle waste. This study discusses the design and manufacture of a portable plastic bottle waste bank that provides sales value automatically through measuring the weight of plastic bottles using Arduino software. This plastic bottle waste bank tool is designed with the feature of automatic sales value acquisition through the acquisition of scale calibration data and determination of bottle categories measured using an IR sensor. The plastic bottle waste bank system is set using the Arduino Uno program to obtain the calibration factor from the load cell sensor. The test results show that the calibration factor with a value of 701 shows the smallest error percentage value and the average weight of the measuring stone is close to the actual value with the average data collection variable i in one experiment of 5. Testing on this waste bank tool is quite good because the tool able to provide categories and selling prices of plastic bottles based on a given programming function. However, this tool still lacks in the accuracy of calibration on the scales.