A PIC16F84 based CW Decoder


Posted on Jan 20, 2013

I propose a simple CW decoder wich makes use of a PIC16F84 microprocessor with a 16x2 chars LCD display. It is equipped with an audio frequency input from your receiver, an input for a stright key and an audio output locked to the input signal. It automatically adapts itself to the CW rate and may be employed for learning purpose substituting the traditional tone generator and offering the capability of displaying the keyed code.



This project arises from a twofold need connected with CW learning, first of all to enance the performance of the traditional oscillator providing it with a display on wich you can verify the correctness of your keying, and then the need to have an inst




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