In my project I followed a method like this:
•Identification of electronic hardware parts,
Creation of Arduino circuit diagram with Fritzing, 
• Soldering and making circuit connections,
•Software of tap circuit with Arduino IDE,
•Creating lesson videos for different grade levels with Scratch code blocks, 
•Prototype design where hardware parts can be put, 
• Uploading lecture videos to the screen with Nextion Editor,
Data collection on ThingSpeak platform with internet of things (IoT)

Arduino UNO for managing the circuit, 2 water motors for water and soap to flow, motor driver for connecting water motors to Arduino, RFID card or key fob for cards defined by students, RFID card reader to read RFID cards into the system, for students to play video at class level I used the Nextion screen, a button to open the faucet without reading a card, a switch to turn the system on and off, cables to connect the hardware parts, and the ESP8266 Wi-Fi Internet of Things module to transfer the handwashing data of the students.

I created my Arduino circuit diagram with the Fritzing app. I duplicated GND, 3.3 volts and 5 volts. When I was creating my circuit diagram, I made a mistake by not cross-connecting the TX (Transmit x: transmit) and RX (Receive x: receive) pins. While one of these pins is receiving data, the other is providing data. In this respect, their connections must also be cross. While the ESP8266 Wifi module or Nextion display is connected to Arduino, if the TX pin is connected to the TX pin on the Arduino and the RX pin is connected to the RX pin on the Arduino, it will be wrong and the circuit will not work. I burned my circuit a few times this way :))

I soldered my circuit parts and made their connections. 

I made my software with Arduino IDE.

I prepared videos with Scratch code blocks according to grade levels. With these videos, I also aimed that students continue to learn in the school environment while washing their hands.

With the Nextion editor, I uploaded the lecture videos I prepared on the computer to the screen.

I created the construction guides for my faucet and panel designs. It was 574 pages in total.

With the ESP8266 Internet of Things module, I transferred the handwashing numbers of the students to their teachers. In this context, I benefited from the Thingspeak platform.

Data is stored on the Thingspeak platform. People who have this link can follow the handwashing numbers of the students here. Machine learning can be used to facilitate the analysis of this data. However, since I do not know machine learning yet, I analyzed in excel. From here, we can observe that the one-week hand washing habits of the students have improved.

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