I am a low level novice when it comes to electronics...
I want to find or build a flat 10 key pad and curcuitry that I can program different security codes (at least 5 different codes) to send an "On-Off" signal to control an electro-magnet. Does such a thing alreay exist "off the shelf"? I wouldn't mind building one, but I don't have any idea where to start!
Also need a source for electromagnet to use that has enough power to "lock" a door.
any and all help will be appreciated!
I want to find or build a flat 10 key pad and curcuitry that I can program different security codes (at least 5 different codes) to send an "On-Off" signal to control an electro-magnet. Does such a thing alreay exist "off the shelf"? I wouldn't mind building one, but I don't have any idea where to start!
Also need a source for electromagnet to use that has enough power to "lock" a door.
any and all help will be appreciated!