Methodology

The prototype is started up by installing the components - infrared sensor, ultrasonic sensor, servo motor, LED, ESP8266 WiFi Module and Arduino Uno on a breadboard.

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• LED is connected on pin 13, sensor motor is connected on pin 9.

• ESP8266 is supplied with 3.3V from the Arduino Uno.

• 5V of infrared sensor and ultrasonic sensor are supplied through Arduino Uno on pin 7 and pin11 (trig), pin 12(echo) respectively.

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The prototype is programmed via Arduino IDE such that:

• servo motor controls the open and close of the trash can lid with infrared sensor to detect motion.

• ESP 8266 enables the Arduino Uno to WiFi network.

• LED lights up when trash can is full.

• Ultrasonic sensor detects the trash level and sends message to user when the trash can is full via Blynk.

• Blynk able to display real-time data of the trash level with the widgets: Gauge as well as SmartChart.

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Once the program is working, the components are installed to the trash can accordingly.