- An ECE student from the De La Salle University shared his do-it-yourself alcohol and soap dispenser
- He showed the materials and the step-by-step process on how to come up with the motion-activated alcohol and soap dispenser through his Youtube channel
- He said he got the inspiration from “several Arduino automated liquid dispensers circulating the web“
The COVID-19 pandemic is the world’s biggest battle nowadays as experts are still clueless as to when the crisis will finally come to end. However, everyone is still hopeful that the tests and studies done will soon become the cure to the virus that paralyzes many activities as well as the world’s economy.
While scientists and medical experts are working hand in hand in resolving the problem, many are also giving their share to help even in their little ways. One of them is a student from the De La Salle University who shared his do-it-yourself alcohol and soap dispenser.
The one who exerted effort in sharing this diy is Angelo Casimiro, an Electronics and Communications Engineering (ECE) student of the DLSU-Manila. In a video he uploaded on Youtube, he shared the materials and the step-by-step process on how to come up with the motion-activated alcohol and soap dispenser.
In the video, he shared the materials needed to come up with the project, and these are: DC water pump, aquarium tubing (but he used medical tubes instead), proximity sensor, TIP32C PNP transistor, old glass jar, old ball pen, and sanitizer or rubbing alcohol.
He said that “several Arduino automated liquid dispensers circulating the web” are too expensive, so he invented a motion-activated dispenser that is cheaper compared to what he saw on the web.
“I figured using a simple transistor or MOSFET 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.” – Angelo Casimiro
The motion-activated dispenser is just one of his many inventions, among which are: water-powered flashlight, five-minute LED jar, DIY mic pop-filter, and DIY Life-Size BB8. His works can be seen on his Youtube channel TechBuilder.
Here is the full video of his DIY motion activated alcohol and soap dispenser”
