Since I've an Arduino Uno, bought some time ago, now I decide to build a CW Decoder, to use with my radio
I was inspired from other similar project on the net, first of all this:
http://skovholm.com/cwdecoder
and also from this:
http://iv3ogt.altervista.org/Homebrew/cw_decoder/
The core of the software is the Goertzel algorithm, that decodes the audio signal (it's not my own work), to which I've added the TFT 1,8'' interface. On the screen you can see all the decoded letters, the WPM and the audio signal graph.
The box is orrible!... but it's only a prototype :-)
The options are:
- interfacing with bluetooth to Android and input from cellphone virtual keyboard
- mini ps/2 keyboard
- change this video with another touchscreen, in order to simulate a keyboard
I was inspired from other similar project on the net, first of all this:
http://skovholm.com/cwdecoder
and also from this:
http://iv3ogt.altervista.org/Homebrew/cw_decoder/
The core of the software is the Goertzel algorithm, that decodes the audio signal (it's not my own work), to which I've added the TFT 1,8'' interface. On the screen you can see all the decoded letters, the WPM and the audio signal graph.
The circuit
Sources
You can download the Arduino sketch from here:The box is orrible!... but it's only a prototype :-)
Next steps
I've some ideas to add a keyboard to the project, in order to coding and send the morse code.The options are:
- interfacing with bluetooth to Android and input from cellphone virtual keyboard
- mini ps/2 keyboard
- change this video with another touchscreen, in order to simulate a keyboard
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