MQTT Protocol Implementation for Monitoring of Environmental Based on IoT

Various of environmental applications has implemented IoT technology as a solution in solving problems. For instance, air quality measurements. There are many communication technologies used to measure air quality by utilizing Wireless Sensor Network (WSN), Wi-Fi, Bluetooth, and LoRa as communication medias. This study aims to implement the Message Queuing Telemetry Transport (MQTT) protocol in monitoring environmental conditions. MQTT is implemented using the ESP8266 Wi-Fi module, temperature sensor, humidity sensor, and Carbon Dioxide (CO2) sensor. Furthermore, the modules will send data to the MQTT broker using a wireless network which running on the Raspberry Pi. As a result, there is no packet loss when using the MQTT protocol. All environmental data can be monitored in real time using web-based application.