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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Cheap keyboard for embedded projects

Do you looking for simple, small and cheap keyboard for your embedded applications?

Ultrasonic range meters

A few schematics for ultrasonic range detectors.

VGA clock with USB interface

PIC18F2550 based clock with VGA video output

Password generator

Convert an AVR development board into suitable password maker.

SX48 MIDI player

A "bigger brother" of the smaller Soundgin - an interesting SX48 micro-controller midi music maker...

ATmega8-based video overlay

Simple video overlay circuit, built on breadboard? Yes!

Soundgin - a programmable sound generator

The Soundgin is an 18-Pin Microchip PIC18F1320 that has been programmed to generate complex sounds.

Two MP3 players

Two different MP3 players based on Atmel's AVR appears last days. Come and see...

Using the GALs

A couple of links for lightweight reading about one of the simplest programming logic chips. With my schematics and GAL programming tool.

Two DIY low-speed oscilloscopes

Do you need an oscilloscope? Are you satisfied with small display and low frequencies? Try to build your own!

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