is an IoT-Arduino-based NFC payment system for coffeemakers with toptronic logic unit, as Jura Impressa S95 and others without modifying the coffeemaker itself. We currently use it with a Jura Giga X8 professional.
The project is based on Oliver Krohns famous Coffeemaker-Payment-System at
https://github.com/oliverk71/Coffeemaker-Payment-System
and the sharespresso project from the german c't magazine at
https://github.com/psct/sharespresso
The main difference to the original project is that the coffeemaker payment system is connected to the internet via ESP8266 od ESP32 WiFi chipset and may be administrated with a Ionic3-App via MQTT.
Here's an example for a prototype hook-up.
The complete project is described at our blog.
The code is provided 'as is', without any guarantuee. Use at your own risk!
Many thanks to Oliver Krohn and the guys from the c't magazine for the great basis. A reference for several included tools can be found here: https://github.com/oliverk71/Coffeemaker-Payment-System