[Colin] wanted a way to reliably control an Arduino via ham radio. One of the easiest methods of automated radio control makes use of Dual-Tone Multi-Frequency signalling. To those who aren’t into ...
DTMF (Dual Tone Multiple Frequency) Encoder and Decoder informally named as Touch Tone allocates a unique tone to each button on an appliance (made up of two frequencies high and low). The DTMF ...
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