Development of IoT based garbage management system using NodeMCU

Abstract

In this paper, a smart system is developed for collecting the garbage without letting it overflow. This system collects the sensor data and delivers it to the cloud server using a gateway. An effective system with low cost and low power consumption can be achieved by using NodeMCU as a gateway. An ultrasonic sensor is used to observe the waste level inside the bin and the other ultrasonic is used for detecting the motion whether anybody is approaching the bin to dump the waste. A servo motor is used to automate the opening of bin. A weight sensor is being used in order to evaluate the heaviness of the bin along with its levels. Using a load cell also acts as an alternative to the failure of ultrasonic sensor. These sensor values are continuously uploaded to the cloud server(Thingspeak) for analysis and also for further reference. If the garbage level of bins reaches certain threshold value an alert mail can be sent to the concerned authority through an application. These levels and location of the filled dustbins can be seen in a mobile application given to the municipal authority, so that they can optimize their routes for collecting waste.