Handless Grocery Shopping

The idea for this project is to eliminate interactions that could spread germs at stores. Instead of handpicking food, the shop is equipped with sensors attached to containers that could dispense the designated food item. Big shopping stores are essential to people; however, it provides a living place for germs. In order to limit the spread, hand to hand and hand to surface interactions need to stop. The reason why is because people touch items in the grocery store without buying them which transmits germs to the next person. The project consists of an ultrasonic sensor that uses sound waves to detect the distance between itself and the nearest object in front of it. There is a 20-centimeter threshold set on the sensor which activates an input connected to a LED that lights up green. When put in context at the store, there would be no light, but a motor or belt that could place food into a delivery tray where only the customer would interact with it.