CoffeeOS is a software framework designed for controlling coffee machines via WLAN. It includes the necessary functionalities to manage product selection, user input via a rotary encoder, and communication through an OLED display and NFC reader for user authentication. The system is based on an ESP32 microcontroller with Wi-Fi connectivity and it has a simple barebones webserver for usage statistics.
The project originated as a study project in university for a project report. In the making of this project the coffee machine 'Miele CM 7350' was used.
- Rotary Encoder Input: Allows the user to navigate through product menus.
- OLED Display Support: Displays user-relevant information such as product names and status updates.
- NFC Reader Support: Utilizes the PN532 NFC module for RFID interactions.
- Wi-Fi Connectivity: Supports Wi-Fi connection for remote operations.
- Menu Management: Handles the selection and display of products.
- Clone the repository and ensure you have the necessary libraries installed:
- Adafruit PN532
- ESP32Encoder
- Wire, SPI (for I2C communication)
- Connect the necessary hardware:
- Rotary Encoder: Connect to the appropriate pins for user input.
- OLED Display: I2C-connected OLED display for displaying text and other information.
- NFC Reader (PN532): Connect via I2C for RFID reading functionality.
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Edit the hardware pin configuration in the code (
coffeeOS.h). -
Compile and upload the
coffeeOS.cppto your ESP32 using the Arduino IDE or PlatformIO.
MIT License. Copyright © 2022 Tim Prüß
See LICENSE for Details.