A weblog focused on interesting circuits, ideas, schematics and other information about microelectronics and microcontrollers.
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Disclaimer
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.
DTMF
Software DTMF decoder
6. September 2009 - 11:52 — adminDTMF (the phone dialing tones) is often decoded with a special IC. Here is a pure SW implementation in the PIC18F877 chip.
DTMF Decoder
10. July 2008 - 18:05 — adminDecoding DTMF (Dual Tone Multi frequency) with MT8870 chip and AVR x2313 microcontroller.
