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How an I do FM modulation of sensor input in atmega32, I read that dds can be used but I havent found good resources explaining digital FM modulation?
That's helpful. Can you explain how the DDS circuit works?
A direct digital synthesis (DDS) circuit is used to generate precise waveform signals with digital control over the signal frequency, amplitude, and phase. In DDS, a digital signal is used to modulate the output frequency of a sine wave generator. This modulated waveform is then fed to the FM transmitter to transmit the FM signal.