Our group of students would like to build a simple vending machine, the one that works on coins. The problem is we know very little about how a vending machine works.
Please assist us, we will appreciate assistance about this matter.
Thank you in advance. :)
I've read somewhere in this forum that baking soda mixed with muriatic acid and some water is a good etching solution, I forgot the exact mixture though, but I'm sure you can search it.
Please redirect me if I'm on the wrong thread.
I was just wondering what is the difference between a single magnet speaker and a dual magnet speaker.
I hope somebody can help.
Thanks in advance.