AUTOMATIC ALCOHOL DISPENSER

In this situation of Covid-19, The general public turn to wear a face mask, wash their hands, and leave more spacing especially. In school many countries have closed classes, some schools can still open classes, because all of the students are here. But, we still do all classes online. Even so, we still let students wear a face mask and always wash their hands to reduce infection and spread the infection.

Microcontroller boards are far too expensive. I figured using a simple transistor 2N2222 would do the job, which would also drastically reduce the costs. Obviously, the absence of a micro controller removes control of over spilling, but then, I did find out that using a smaller nozzle would physically limit the flow of liquid. There are several two transistor RC circuits that would solve the over spilling problem but the single transistor design works well, given that you choose the proper nozzle size.

Package Includes:

• • 1 x DIY Automatic Alcohol Dispenser (No Arduino Needed)