I have been working through the videos for the getting to blinky kicad series. I went to go order components for building my board (which should hopefully arrive soon) and I noticed that there are a lot of values that pop up over and over again. Why are the values like 3.3 and 6.8 repeating for lots of component values? Do other people notice these patterns?
Yep, there’s definitely is a pattern. You may want to check out https://www.electronics-notes.com/articles/electronic_components/resistors/standard-resistor-values-e-series-e3-e6-e12-e24-e48-e96.php .
Thank you brooke. I see there is a pattern from reading that page. But it doesn’t seem to say why. Just that there is a pattern.
I also saw I mis-spelled “blinky” to “bligky”, so I fixed that
Ah-ha! But reading that these are called “E-series” I was able to look it up on wiki pedia:
Ah apparently that was in the first page too: “These standard resistor values have a logarithmically based sequence and this enables the different values to be spaced in such a way that they relate to the component tolerance or accuracy.” I guess I just didn’t understand it like it says on the wuiki page.