Formosa Journal of Applied Sciences (FJAS)
Vol. 4 No. 7 (2025): July 2025

Design of an Automatic Fruit Counting and Sorting System Based on Laser Diode Sensors with PC Display

Abdul Floranda (Universitas Sumatera Utara)



Article Info

Publish Date
06 Aug 2025

Abstract

This research designs and builds a device capable of sorting and counting the number of items automatically by utilizing the working principle of a laser sensor. The system is controlled by an ATmega8535 microcontroller, enabling it to operate without manual intervention. The main components of the system include an item detection sensor, a control unit, a conveyor, and a power supply. The detection process is carried out using an ATmega8535 microcontroller, laser, photodiode, LCD, and computer display. System testing includes testing the sensor circuit, servo motor, and automatic sorting and counting functions. When the laser sensor detects an object, the data is sent to the microcontroller and then displayed on the LCD screen and computer. The system is also equipped with an automatic separator bar to separate acceptable and unacceptable items using a DC servo motor. The system's detection accuracy reaches 95–100% with an error margin of 0–5%.

Copyrights © 2025






Journal Info

Abbrev

fjas

Publisher

Subject

Control & Systems Engineering Decision Sciences, Operations Research & Management Education Engineering Social Sciences

Description

Formosa Journal of Applied Sciences (FJAS) seeks to propose and disseminate the knowledge by publishing original research findings and novelties, review articles and short communications in the wide spectrum of applied sciences. Scope of the journal includes: Biology, chemistry, physics, ...