July 2021

J.A.R.V.I.L.

Python MQTT Redis InfluxDB Docker

J.A.R.V.I.L. stands for 'Just A Rather Very Intelligent Library'. It is a project of the 'Smart Cities & IoT' course at the University of Stuttgart. It's main goal is to simplify and automate various tasks in a modern library to make daily work easier for students.

Repository

System Architecture

System Architecture

Services

  • Arduino Configuration:
    Supports remote Arduino programming via Bluetooth (StandartFirmata_Bluetooth) or USB (StandartFirmata) using pyFirmata. Devices are configured by uploading the appropriate firmware through the Arduino IDE.

  • System Setup:
    The system runs on multiple Raspberry Pi containers managed with Docker Compose. Each container provides specific services:
    • Development: All services for live development.
    • Pi-1: MQTT broker and analysis.
    • Pi-2: Time slot booking.
    • Pi-3: MQTT endpoint.

  • MQTT Broker (Mosquitto):
    Facilitates communication between system components on port 1883. MQTT-Explorer is recommended for testing.

  • Database (InfluxDB):
    Stores time series data collected by the system. Accessible at port 8086 with default credentials (“grafana”/”password”).

  • Time Slot Booking Service:
    Users book library visits via a web interface (http://localhost:5000/). Bookings require basic personal information and are cached in Redis (http://localhost:6379/).

See the Wiki for full documentation.