April 9, 2013 AT 2:00 am

DIY Electronic Birthday Candle

DIY Electronic Birthday Candle

So the concept here is pretty simple.  I wanted to mount a microphone on a stick with an LED and design a circuit that would react to a large amount of noise on the microphone input (blowing) to turn off the LED.

This could easily be accomplished with a micro controller, but I thought it’d be more thrifty and challenging to do it with analog components.

Related

“D is for Diode” – Circuit Playground Episode 4 is out now! CLICK HERE TO WATCH!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground”Adafruit’s Apps!



No Comments

No comments yet.

Sorry, the comment form is closed at this time.