Abstract
One of the technologies that continues to be developed today is automated system technology. An automatic system that has the potential to continue to develop in this modern era is the vending machine. Along with the development of technology, vending machines have begun to be developed using tags / RFID cards (Radio Frequency Identification) in lieu of paper money. The disadvantage of this system is the dependence of machine activation on an RFID tag / card that still has security risks. Therefore, a vending machine will be developed using QR (Quick Response) Code and integrated with an Android-based smartphone instead of RFID. The microcontroller based vending machine system uses a QR Code to work to serve drinks automatically after processing serial data sent by a smartphone through an application that has been designed with Bluetooth communication. Users can register an account on the application and fill in the balance to buy canned drinks at the vending machine.
Highlights
One of the technologies that continues to be developed today is automated system technology
Perancangan perangkat keras dilakukan dengan menggunakan dua buah software, diantaranya, perancangan skematik dan lay out PCB menggunakan membaca input melalui Bluetooth HC05
[11] Google Inc., Google Apps Script
Summary
Bluetooth SPP (Serial Port Protocol) yang mudah digunakan dan dirancang untuk pengaturan koneksi serial nirkabel [5]. Bluetooth HC-05 digunakan untuk menerima data serial dari smartphone android dan mengirim data kembali ke smartphone tersebut. Modul bluetooth HC-05 ditunjukkan pada Gambar 2. 2.5 Motor Servo Motor servo adalah sebuah aktuator yang sudut putarnya dapat diatur secara spesifik menggunakan sinyal kontrol. Penelitian ini menggunakan dua buah servo yang memiliki fungsi yang berbeda. Motor Servo sg ditunjukkan pada Gambar 3. Sensor IR digunakan untuk mendeteksi adanya minuman pada vending machine. Sensor IR Obstacle Avoidance ditunjukkan pada Gambar 4. Arduino IDE bersifat multiplatform dimana software ini dapat dijalankan pada windows, mac os, android, maupun pada linux [8]. Pada penelitian ini menggunakan Arduino IDE versi 1.8.7. Pada penelitian ini menggunakan Arduino IDE versi 1.8.7. untuk merancang program vending machine
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