I recently watched this video: Link to video and thought it would be a fun project as I’m new to Arduino. The only problem is that I can’t identify what he used to make it! He only showed the components for a few seconds.
I know you can use the MPR121 or whatever the name is, but I’m a little short on money. It seems like I have everything he had except the transistors, which I can buy for a buck on aliexpress anyways.
A schematic of of it for just one coke bottle would be nice! And what is the transistors used for? What do they do?