Very interesting to watch video of a circuit I made a simple circuit with integrated 555 people with a beautiful work I saw how much fun a circuit made of many different applications with
Tapping, Make Music Simple 555 Circuit
Circuit installation and drawing a picture on the pen when writing on music they did 🙂 knives, faucet, mount and tried on clothes
source ladyada.net alternative link:
Tapping, Make Music by Drawing Pictures ZIP File Password: 320volt.com
2.4 GHz Spectrum Analyzer Circuit Nokia 3410 LCD ATmega8
Mobile phones with Nokia 3410 LCD screens often used microcontrollers Atmel ATmega8 and cywm6935 nokia 3410 LCD modules made with a 2.4 GHz spectrum analyzer circuit.
Handheld 2.4 GHz Spectrum Analyzer Circuit
After visiting some web pages about 2.4 GHz ISM band spectrum analyzers based on the CYWM6935 module, I tried to build my own analyzer, but with some improvements. The references I found on the net used the parallel port or a serial link to a host computer. I want the analyzer to be portable, and easy to transport, so I will use a microcontroller and a graphical LCD.