IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331, Volume 14, Issue 4 Ser. I (Jul. – Aug. 2019), PP 32-37 www.iosrjournals.org DOI: 10.9790/1676-1404013237 www.iosrjournals.org 32 | Page Manufacture of Electronic Weighing Machine Using Load Cell Snehashis Das 1 , Avijit Karmakar 2 , Pikan Das 3 , Biman Koley 4 1( Department of Electrical Engineering, Technique Polytechnic Institute, India) 2 (Department of Electrical Engineering, Technique Polytechnic Institute, India) 3 (Department of Electrical Engineering, Technique Polytechnic Institute, India) 4 (Department of Electrical Engineering, Technique Polytechnic Institute, India) Corresponding Author; Snehashis Das Abstract: We have seen weighing machine at many shops, where machine displays the weight just by placing any item on the WEIGHING platform. The building of the weighing machine can be done by 7 segment LCD display using required DRIVER ICs, MICROCONTROLLER or by USING ARDUINO. Our project is to design weighing machine using ARDUINO & LOAD CELL, having capacity of measuring up to 20kgs. This limit can be further increased by using the load cell of higher capacity. In our project we have used HX711 IC& ARDUINO 1 . Here load cell acts as a transducer which transforms weight into Electrical Output. The basic unit of Load Cell is Strain Gauge which deforms when pressure is applied on it. Load cells are highly accurate transducers which provide the user with the information not generally obtainable by other technology due to commercial factors 2 Implementing arduino in weight measurement machine is easy and also economical. Initially one needs to calibrate this system for measuring the correct weight and after that the operation gives pretty accurate results. --------------------------------------------------------------------------------------------------------------------------------------- Date of Submission: 28-07-2019 Date of acceptance: 13-08-2019 --------------------------------------------------------------------------------------------------------------------------------------- I. Introduction Nowadays to measure a perfect weight is a most vital requirement in the industries. It is very important to measure precisely and store of the measured value (weight). Nowadays the mechanical weighing machines are not used and are replaced by the electronic weighing machine as the electronic weighing machine has upper hand of higher accuracy& higher degree of reliability. Load cells are sensors that are used in the industry for variety of physical measurements 3 . Compared to the other weighing machine it has many advantages like- 1. Smaller in sizes than the others, 2.High speed response and rapid weighting, 3.good accuracy, 4.High dependability, 5.Online processing through computer, 6. Print out facility and parallel display can be attached. The Electronic weighing machine are manufactured by the combination of a transducer (load cell), a HX 711 module, an Arduino Uno and a LCD Display. The signals from the load cell are amplified and fed to the HX711 module and then to the Arduino Uno and then the LCD Display which is connected to the Arduino is then gives the output result, how much weight is calibrated and is given to the load cell. II. . Importance Of The Project In The Present Technical Scenario The electronic weighing machine helps us to show that the exact weight of a product by virtue of which one can ensure that how much weight is given. One can’t ignore its need in an industry while talking about the importance of this machine. Electronic weighing scale has become very popular and people consider it as one of the best ways to ensure that the production of goods and services happen in accurate manner. The Electronic WEIGHING machine helps in telling the exact weight so the one can ensure that how many numbers of products are produced. Telling the exact amount of production: While manufacturing products it actually become challenging to count the number of products manufactured, thus to ensure that one have the exact details of the products produced, one can ensure to get the exact numbers of the products. We can monitor the trend of usage of individual materials 3 . Easy to use: the WEIGHING scale is very easy to use and it actually makes it possible for one to know the amount of the production which happens on a regular basis. Alone has required to do is to put the products on it to know about the weight of the product items. Increases work efficiency: The other best thing about using a WEIGHING scale for industry use is that if increases the work efficiency and It also helps the workers a lot as they can do their job at a much more fine manner.