Footprints?
Those are in-line connectors???
They look like a standard 2.5mm header could be used?

https://www.aliexpress.com/item/32919856551.html

This is the item.
I'm not sure what in-line means.

 

If those Male headers are 2.5mm then there should be many headers of that spacing to pick from, I don't have my Kicad PC handy to verify a Part, but a search through the connector library should show a few options.

 

If those Male headers are 2.5mm then there should be many headers of that spacing to pick from, I don't have my Kicad PC handy to verify a Part, but a search through the connector library should show a few options.

I understand what you mean. But I am not sure the JST connectors are 2.54 mm. Will have to check when they get to me, I guess.
I just removed the thermistor from the circuit and replace it by a male connector and did the same to the fan symbol. There are no footprints for them because they won't be soldered nor fixed physically on the PCB.








There is still a lot to improve. This is just a show off


PS:
I also changed another detail on the circuit. I moved the mosfet gate to the bjt emitter output. If I left as it was before, I think I could end up with the fan always ON in case I lose power on the MCU.

 

Also remember to add ground/power planes if needed.

 

Also remember to add ground/power planes if needed.

Sure. I'm only half way... Thanks for keep helping me!

 

Ok, there is something I'm finding weird.
After drawing all the vias, ground planes and power planes, shouldn't I see the vias in the 3 view of the PCB



So, why aren't they visible?

 

They are visible in the top dual trace view?

 

They are visible in the top dual trace view?

I'm sorry, I don't know what that is. Is it a view mode?

 

Your first/top pic in post # 126.

 

Your first/top pic in post # 126.

I'm not sure I understand your question. 1st picture in post #126, I can see the tracks, yes. I mean, the picture shows them, so yes, they are visible. But I think I'm missing the point of your question.

 

It shows the Via's !

 

It shows the Via's !

Yes, and shouldn't they be visible in the 3D view?

I've been following this video to help me throughout the process.

 

I think I got it... Viewing options...

 

Yes, and shouldn't they be visible in the 3D view?

Not necessarily, the 3D view is principally to see the outline and placement of the parts, not the traces.

 

It looks good. How much does KiCad cost??

 

It looks good. How much does KiCad cost??

Zilch
It is open source with now Cern programmers now involved, ver 6 is due to come out this summer.
https://www.kicad.org/about/kicad/

Kicad was created open source in 1992 by Jean-Pierre Charras while working at Grenoble.to assist students when Notably in 2013 Cern started contributing resources towards Kicad to help foster open hardware development by helping improve Kicad to be on par with commercial EDA tools.

 

Hello again.

I have a question. When I was designing the PCB layout I noticed something. I'm not sure I am right about this but, shouldn't this part of the circuit:



be like this instead:


That R6 is to free the AMS1117 from drawing (12-3.3) / 8) A

 

What is the connector J1 for ?

 

What is the connector J1 for ?

It's where the 12V will be coming from!

 

Then you don't need R6 and the +12v would be on pin1 of J1., no +12L