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1  Using Arduino / Displays / Touchtone - DTMF numbers to LCD Display on: January 18, 2013, 05:06:52 pm
Hello all, I need to display digits from my touchtone telephone to a 16x2 LCD display.  What is the best way to do this?  I have looked at the Arduino Uno board with the CM8870 DTMF decoder chip, is this the best way to do it or does anyone have any other ideas?  Thank you and please respond.

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