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Lab 2—Connecting IoT and Edge with MQTT

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Network of Things Engineering (NoTE) Lab

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Abstract

In Lab 2, we connect Arduinos and Raspberry Pi within a wireless local area network (WLAN) and use MQTT protocol for their communication. This lab module includes a series of tasks that include programming in Arduino IDE and Python. The lab setup is shown in Fig. 5.1, and it includes Arduinos, sensors, actuators, auxiliary components, Raspberry Pi, WiFi router , and workstation machine. This lab also implements a new tool, which is a Mosquitto broker on Raspberry Pi. On Arduinos, MQTT publishers and subscribers are implemented using arduino-mqtt library.

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References

Libraries

  1. Arduino JSON library: https://github.com/bblanchon/ArduinoJson

  2. Arduino WiFiNINA library source: https://github.com/arduino-libraries/WiFiNINA

  3. Arduino MQTT library: https://github.com/256dpi/arduino-mqtt

  4. WiFi client Arduino header file: https://github.com/tubskns/notelab-code/blob/master/arduino/WifiClient/WifiClient.h

  5. WiFi client source file: https://github.com/tubskns/notelab-code/blob/master/arduino/WifiClient/WifiClient.cpp

  6. Source code LiquidCrystal_I2C library https://github.com/johnrickman/LiquidCrystal_I2C

  7. Source code DHT11 library: https://github.com/adafruit/DHT-sensor-library

Tools

  1. Docker Engine installation on Ubuntu: https://docs.docker.com/engine/install/ubuntu/

  2. Python: https://www.python.org/downloads/

  3. OpenSSH Server: https://ubuntu.com/server/docs/service-openssh

  4. How to install Arduino IDE: https://www.arduino.cc/en/Guide/Linux

  5. mosquitto-clients (v1.6.9-1): https://packages.ubuntu.com/focal/mosquitto-clients

  6. Eclipse Mosquitto (Docker): https://hub.docker.com/_/eclipse-mosquitto

Other Resources

  1. MQTT client Arduino header file: https://github.com/tubskns/notelab-code/blob/master/arduino/MqttClient/MqttClient.h

  2. MQTT client Arduino source file: https://github.com/tubskns/notelab-code/blob/master/arduino/MqttClient/MqttClient.cpp

  3. MQTT client Arduino sketch: https://github.com/tubskns/notelab-code/blob/master/arduino/MqttClient/MqttClient.ino

  4. MQTT publisher for DHT11 Arduino sketch: https://github.com/tubskns/notelab-code/blob/master/arduino/sensors/temperature/publisher_DHT11/publisher_DHT11.ino

  5. MQTT publisher for DHT11 Arduino sketch: https://github.com/tubskns/notelab-code/blob/master/arduino/actuators/subscriber_temperature/subscriber_temperature.ino

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Author information

Authors and Affiliations

  1. Technische Universität Braunschweig, Braunschweig, Germany

    Admela Jukan, Jasenka Dizdarević & Francisco Carpio

  2. Universitat Politècnica de Catalunya, Vilanova i la Geltrú, Spain

    Xavi Masip-Bruin

Authors
  1. Admela Jukan
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  2. Xavi Masip-Bruin
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  3. Jasenka Dizdarević
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  4. Francisco Carpio
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Corresponding author

Correspondence to Admela Jukan .

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© 2023 The Author(s), under exclusive license to Springer Nature Switzerland AG

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Jukan, A., Masip-Bruin, X., Dizdarević, J., Carpio, F. (2023). Lab 2—Connecting IoT and Edge with MQTT. In: Network of Things Engineering (NoTE) Lab. Springer, Cham. https://doi.org/10.1007/978-3-031-20635-1_5

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  • DOI: https://doi.org/10.1007/978-3-031-20635-1_5

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-031-20634-4

  • Online ISBN: 978-3-031-20635-1

  • eBook Packages: EngineeringEngineering (R0)

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