Every multimeter has a continuity tester. But what do you do when you don't have a multimeter or if it is broken and you want to test continuity of a circuit. That's right you make a continuity tester yourself. In this instructable you will learn how to make a cheap and easy continuity tester yourself.

Step 1: About the 555

This continuity tester is made from a 555 ic. I think before making this continuity tester you should first know the pinout of 555 ic. It is given in this step.
It would be nice to see pictures of this project made by you. How do we know that you have made this project yourself? How did you overcome problems that you encounter when building this project?
What! Your not psychic?????
No, I'm not. I can assume that you have not made this project yourself. Copying from somewhere else and present it as your own is called plagiarism and it is highly unethical.
http://www.555-timer-circuits.com/wailing-siren.html<br> <br> Near as I can tell that article outdates this 'ible by a few months
That being said, this seems like a fun project to try. If I get around to it, I'll post a real 'ible about it

About This Instructable




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