Smart WC, Sanitary Campus

Lack of toilet paper in toilets, causes an unsanitary environment, we want to track it before the toilet paper level drops below threshold and inform the authorized person.

Team Members

• Nilsu Pamuk
• Anıl Yıldırım
• Berkay Taçyıldız

Technical Details

Hardware setup

We used an Arduino Uno, a breadboard, a HC-SR04 ultrasonic sensor and an ESP8266 wifi module

Connections of the devices are:

• RXD of wifi module to RXD of Arduino-uno
• TXD of wifi module to TXD of Arduino-uno
• VCC and CH_PD of wifi module to 3V3 of Arduino-uno
• GPIO0 and GND of wifi module to GND of Arduino-uno
• VCC of ultrasonic sensor to 5V of Arduino-uno
• Trig of ultrasonic sensor to digital 9 of Arduino-uno
• Echo of ultrasonic sensor to digital 8 of Arduino-uno
• GND of ultrasonic sensor to GND of Arduino-uno

Flow of data

• Ultrasonic sensor sends data to Arduino-Uno.
• Arduino sends the data to ESP8266 module for it to transfer the data to cloud(Heroku).
• This cloud provides GUI to the end user and also sends an e-mail if the toilet paper level is below threshold.

Development Environment

• Development Operating System : OS X
• Development tools: Node.js, Heroku, Arduino IDE, WebStorm