Its a new project and I'm trying to build a point of sale demonstration of something, however, the product is a small unit that uses 3 X 1.5 volt LR44 batteries and requires a pressure switch to complete the loop.
My Question is how would I generate something that will AUTOMATICALLY complete the loop for example every 30 or 60 seconds?
Re: Complete Novice needs guidence and help on a one off pro
Dear Mr. Clueless!
You need an asimmetric timer circuit: 30/60 sec vs 0.5 sec (use an IC 555) and control with it a small relay as the "pressure switch". It is easy to build...