Perancangan Sistem Monitoring dan Penghitung Barang pada Conveyor Mini Berbasis IoT Menggunakan ESP32 dan Sensor Inframerah Terintegrasi Telegram dan Web
This research aims to design and implement a monitoring and item counting system on a mini conveyor based on the Internet of Things (IoT) using an ESP32 microcontroller and an E18-D80NK infrared sensor integrated with a web server and Telegram. The system was developed to overcome manual counting problems that may cause calculation errors and delays in information delivery. The method used is system design and development, comprising literature study, hardware and software design, system implementation, and system testing. The hardware consists of the ESP32 as the main controller, two E18-D80NK infrared sensors as object detectors for finished and reject items, a mini conveyor as the simulation medium, a DC motor as the driver, and an I2C LCD as the local display. The system detects objects passing the conveyor, processes the data with the ESP32 to count items automatically, and displays the results on the LCD while transmitting them to the web server and Telegram in real time via WiFi. The test results show that the system detects objects and counts items with good accuracy, displays data in real time through the website, and sends notifications through Telegram. Therefore, the designed system can serve as a prototype of an IoT-based monitoring and counting system on a mini conveyor.