µ[micro]electronics info

A weblog focused on interesting circuits, ideas, schematics and other information about microelectronics and microcontrollers.




Because I have not tested all electronic circuits mentioned on this pages, I cannot attest to their accuracy; therefore, I do not provide a warranty of any kind and cannot be held responsible in any manner.

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Stereo PWM audio

Using a pwm channel of a simple microcontroller, a capacitor and a resistor to reproducting sounds.

Wouldnt it be sweet if you could have your micro play-back complex things, over audio for an extremely low cost? Imagine replacing that one i/o line that used to drive an led, be able to reproduce the human voice and exclaim "Hello world". This can be useful in projects where you would like to add some human interface, but an lcd would be too bulky / too slow.

Link: Rage against the Arduino

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