![Screen_shot_2013-07-21_at_12.49.07_pm](/system/categories/photos/000/000/003/small/Screen_shot_2013-07-21_at_12.49.07_PM.png?1374432589)
Learning Projects
Help on basic circuits and electronics concepts.
![Dtmf-to-high-and-low-outputs_(1)](/system/instructions/photos/000/000/017/medium/DTMF-To-High-And-Low-Outputs_(1).png?1384479123)
DTMF (phone dial tone) To High and Low Outputs
You know when you push a button on your phone it makes a funny sound? That Sound Can Be Taken And Converted Into High and Low Outputs. For Instance If you Push The Number 5 On Your Phone It Puts Out A Unique Dial Tone And We Take That Tone And Make A Pin
![Amplifier](/system/instructions/photos/000/000/024/medium/Amplifier.gif?1439568425)
555 Amplifier
In its most simplistic form an amplifier can be built with a single 555 timer. In this project, a 200mA of current capability is enough to drive a small speaker, which makes it a good replacement for a low power amplifier. But when more power is needed to
![Fadingledproject](/system/instructions/photos/000/000/023/medium/FAdingLEDProject.jpg?1389377473)
Fading Led Lamp with 555 Timer
This tiny circuit is a simple way to make a fading led without having to program chips or writing code.
![Content_img_2150](/system/instructions/photos/000/000/113/medium/content_img_2150.jpg?1472673506)
Canon DSLR Intervalometer
Bluetooth controlled intervalometer for doing time lapse photography with your canon DSLR.