AD9833は正弦波、三角波の出力が0.6Vだが、 方形波はVcc電圧 (今回の場合5V)となる。出力電圧を一定にするための対策を織り込んだ。 方形波を選択した場合、電圧を0.6Vまで落とすようにArduino nanoのD6 pinを使用している。

Arduino has taken the product “maker” world by storm and one of the more popular Arduino modules is the Analog Devices AD9851 DDS waveform generator. An Internet Web search for “Arduino DDS” showed ...

This project combines an Arduino-based hardware controller with a Python-based software synthesizer to create a vintage-styled frequency visualization and sound generation system. The interface mimics ...

Microcontroller addict [Debraj] decided to make his own programmable sine wave generator, and was able to put it together for under $40 USD. Other than low-cost, his list of requirements was as ...

This direct digital synthesis IC can function as an arbitrary waveform generator by bypassing the SIN table ROM, holding the phase accumulator at zero, and using the phase register as the ...

For want of new test equipment, or simply a project, [Enzo] decided he would take a shot at creating his own waveform generator*. Not only is it a great project, it’s also a decent piece of test ...