Coffeeberry - coffee with a raspberry

PyQt 5 & QML

buy coffee using RFID
get paid for cleaning and refilling beans

One of four pages

Physical devices

MFRC522 RFID Transmitter
HC-SR04 Ultrasonic Sensor
16 Bit ADS for checking status LED
relays to switch start button

All pictures are from unsplash.com

authors: Jost Brandstetter and Felix Schürmann 2020