Digital Filters made easy for Makers - Dimensioning with EXCEL EP48

You need filters for maker projects much more often than you think.
There are 50-60 Hertz interference and the corresponding harmonics from the power supply which can interfere with a measurement.
With microprocessor projects one always has the problem that the processor clocks interfere with analog inputs.
With the Arduino or similar micro-processor boards we have the problem that without low-pass filtering it is practically impossible to get a stable measured value from the analog inputs.
We have an EXCEL tool to easily simulate digital filters without having to overcome any hurdles.
As a hobbyist you need neither filter theory nor a network analysis program.
We can directly look at our input signals and the filter response in the time domain.
Determining the filter coefficients is very simple.
In addition we can also simulate the effectiveness of a filter against interference. Playlists: All videos: Introduction and background: Download free tools and materials:

Источник: rutube.ru