Lmst

#trianglewave

555-Based Square-Wave and Triangle-Wave Function Generator Build for Beginners https://hackaday.com/2026/02/07/555-based-square-wave-and-triangle-wave-function-generator-build-for-beginners/
#Hardware #Howto #555timer #Functiongenerator #Squarewave #TL082opamp #Trianglewave

555-Based Square-Wave and Triangle-Wave Function Generator Build for Beginners

https://fed.brid.gy/r/https://hackaday.com/2026/02/07/555-based-square-wave-and-triangle-wave-function-generator-build-for-beginners/

<div><img alt="The function generator circuit on a breadboard" class="attachment-large size-large wp-post-image" height="450" src="https://hackaday.com/wp-content/uploads/2026/01/Function-Generator-Build-for-Beginners-banner.jpg?w=800" style="margin: 0 auto; margin-bottom: 15px;" width="800" /></div><p>Over on YouTube [Andrew Neal] has a <a href="https://www.youtube.com/watch?v=KfFmZIZ67MM" target="_blank">Function Generator Build for Beginners</a>.</p>
<p><a href="https://hackaday.com/wp-content/uploads/2026/01/555-square-wave.png" target="_blank"><img alt="This is the 555 circuit we are building taken from the datasheet" class="alignright size-full" src="https://hackaday.com/wp-content/uploads/2026/01/555-square-wave.png" width="300" /></a>As beginner videos go this one is fairly comprehensive. [Andrew] shows us how to build a square-wave generator on a breadboard using a <a href="https://www.ti.com/product/LM555" target="_blank">555 timer</a>, explaining how its internal flip-flop is controlled by added resistance and capacitance to become a relaxation oscillator. He shows how to couple a potentiometer to vary the frequency.</p>
<p>He then adds an integrator built from a <a href="https://www.ti.com/product/TL082" target="_blank">TL082 dual op amp</a> to convert the circuit to a triangle-wave generator, using its second op amp to build a binary inverter. He notes that a binary inverter is usually implemented with a comparator, but he uses the op amp because it was spare and

Arguably some of the most satisfying synth sounds can be found in this track

https://www.youtube.com/watch?v=0nnqGDZnWhU

#boardsofcanada #synths #squarewave #sinewave #trianglewave #moog

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