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Week 1: Planning and Design

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 In the first week, we planned our project and divided tasks among the three team members. We selected the available components, including the Arduino UNO, ultrasonic sensor (HC-SR04), servo motor (MG995), OLED screen, and jumper wires. We created a simple circuit diagram to connect all the components and started researching how to program the sensor, motor, and display. Our goal was to detect a hand using the sensor, activate the servo to push the sanitizer, and show messages on the OLED screen. One of the challenges we faced was understanding how to properly use the Arduino UNO screen, as none of us had used it before. Another issue was determining the best distance for detecting a hand without false activation. After discussing and testing different ideas, we set a target distance of 10 cm for the sensor to activate the sanitizer. Component: 1- Arduino UNO  Used for: The Arduino UNO is the main microcontroller board that controls all components. It reads data from the ultra...
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Week 3: Optimization and System Refinement

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 In the third week, we focused on improving the performance of our system. First, we refined the code to make sure that the sensor, servo, and OLED screen worked together smoothly. We also adjusted the servo movement so that it pushed the sanitizer in the right amount and at the right speed. To make the system more user-friendly, we added a mini switch, which allowed users to turn the device on and off easily. Another important step was assembling all the components into a stable structure, ensuring the circuit was secure and neatly arranged. We faced some challenges, such as the servo motor moving unexpectedly at times, which we solved by adjusting delays in the code. The OLED screen also needed better optimization to prevent unnecessary flickering. Lastly, arranging all the wires inside the enclosure while keeping the system functional was a bit difficult, but we managed to find a clean and organized solution.
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