What are some good ways to transform various periodic waveforms into square waves that can be recognized by microcontrollers?

QWE4562009

What are some good ways to transform various periodic waveforms into square waves that can be recognized by microcontrollers? [Copy link]

What are some good methods to transform various periodic waveforms into square waves that can be recognized by microcontrollers?

qwqwqw2088

Various periodic signals? The scope is too large, and the method is not unique.

qwqwqw2088

What form of signal

Strong electricity, such as 220V AC, can be periodic, using voltage transformers, isolated zero-crossing detection circuits, etc.

The weak current triangle wave and sawtooth wave are easier to realize.

QWE4562009

qwqwqw2088 posted on 2021-12-22 16:36 What form of signal strong electricity, such as AC 220V, periodic, can use voltage transformers, isolated zero-crossing detection circuits, etc., weak...

I want to convert non-square waves into square waves. DC below 12V

Fred_1977

Identify waveforms? What is the use? There may be many methodological issues.

QWE4562009

Fred_1977 posted on 2021-12-23 17:17 Recognize waveforms? What is it used for? This may involve many methodological issues.

It is convenient for MCU to make judgments. How can MCU judge non-sinusoidal waves?

lkh747566933

Various periodic waveforms, this range is a bit large. Strong and weak electricity, whether there are positive and negative half axes, etc.