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Here's a video of Experiments 21 and 22 from the Make: Electronics book.

I didn't explain the second experiment (switch de-bouncer) very well, but imagine you have a circuit that counts how many times a button is pressed. You need to de-bounce the switch so that your circuit will only increment the count by one for each press. Without de-bouncing, you will get false increments for each "real" press. Any physical switch (push-button or otherwise) is prone to creating this kind of error, since it is likely to make-and-break several times at the threshold of switching. In fact, by the time you get to this experiment, you will have experienced that phenomenon in previous experiments.

Rohit Kukalekar's profile photo
hello...nic vid!!!..:)
im doin dis project as my assignment....but im facing problems.......could u pls help me sir ?
im wondering if u cn use a tag switch as a toggle instead of using toggle...if so could pls tell me d lay out(ckt)...nd wt is d value of capacitor u usd,,,0.01 o 0.001?...thanks alot sir...:)
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