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Geekshed – MM1BXF

From the mind of Gavin MM1BXF…

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Geekshed – MM1BXF

Tag Archive: PICAXE-20M

DTMF Keypad (and more) Explanation

m1bxf May 19, 2014 0 Comments

Wow, I just realised I created this project back in May 2008… I think the principal and technique used for the keypad is worth explaining however so I’m publishing it now. When my local repeater GB3PY started providing Echolink access…
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