Hello,
I’m a beginner in KiCAD, I would like to have the footprint of the U1 ATtiny85 but I can’t find it, do you know where I can find this footprint ? In my library I don’t see this component
Thank you
I don’t know KiCad libraries (don’t see them in my configuration) so will not help directly.
I suppose ATtiny85 is probably manufactured in several cases but you say nothing about which case you are looking for.
Sooner or later you will have to design new footprint so it is good just to learn how to do it.
Look at the datasheet for the chip you are buying. It will state a package like SOIC-8. Use the generic SOIC-8 footprint in the KiCad library.
Footprint names are (nearly) always generic. They are not specific to an IC. So there is no footprint for an ATtiny85, but there are footprints for DIP, QFP, QFN etc packages. You have to look in the datasheet to know what the package name for your IC is.
What library are you using? In KiCad’s default libraries, all the Atmel microcontrollers already have their footprints assigned. With the Atmel uC’s, pin assignment can also vary, depending on which footprint the IC has, so make sure to triple check if you change this.
Look at the datasheet for the chip you are buying. It will state a package like SOIC-8. Use the generic SOIC-8 footprint in the KiCad library.
Yes, In fact I saw a video and would like to familiarize myself with KiCAD first. yes it’s a print :
Package_SO:SOIC-8W_5.3x5.3mm_P1.27mm.
I can see this information in the video but how do I find it in the KiCAD library ?
Select the symbol, open its properties, then open up the footprint chooser.
(Ignore the connector thing, I just picked a 4 pin symbol to illustrate.)
You can then type in SOIC-8 and it will show variants. Luckily you already have the full path so you just have to look for it. Double check the specs, especially the dimensions, with the datasheet.
I see you’ve already found the symbol properties menu. That chooser icon (stack of books) doesn’t show until you highlight the Footprint row.
I’m sure this is covered in the KiCad documentation (docs.kicad.org) under the Schematic Editor.
That is indeed one way to search for and assign a new footprint, but here are many ways to do this in KiCad. KiCad’s manual has also been translated into French: Schematic Editor | 9.0 | Français | Documentation | KiCad
I can see this footprint, it’s missing the W but it looks similar. When I update the schematic I have 4 warnings but no errors. I think it’s not very important this message, Right ?
Switch KiCad to English before doing screen-shot to make readable what you want to show.
Look carefully at your Value line. It’s for the ATtiny85-20M. As it turns out this is the QFN package version with 20 pins. Therefore you should be looking for a QFN-20 footprint. What did I tell you above about looking at the datasheet for the chip you have (or are going to buy)?
halachal and I are both geniuses (or fools). 
Blockquote
It’s just a description, it has no impact on the footprint I think
halachal and I are both geniuses (or fools).
Probably the video is giving me false information. I uploaded the new fingerprint and now it looks correct.
Your library and value still indicate the M suffix, which is QFN-20 not SOIC-8. That’s why you got the errors about missing pins. You should check your schematic symbol.
