What makes a part interesting?

JacobChristApium · December 18, 2020, 9:11pm

I have a schematic that when I generate a BOM is missing one component from the BOM.

The component appears to no be interesting as in getInterestingComponents()?

The part shows up in the net.components list.

I’m trying figure out how to modify the part to make it interesting so that it appears on my BOM (and more importantly to not inadvertently omit a component from a future BOM).

Thanks in advance,

Jacob

John_Pateman · December 19, 2020, 9:37am

Wild guess - does it begin with a ‘#’ ? If so it’s considered a power pin and will appear on the schematic but not in the BOM. You can use this trick to good effect to show virtual components .

Mediser · December 21, 2020, 4:11am

Yup, It is indeed a good effect. I use this as well.

JacobChristApium · December 21, 2020, 6:40pm

Does what begin with a #?

I the part is connected to a power net:

John_Pateman · December 21, 2020, 11:33pm

How did you generate the BOM - what script did you use? Some of these, eg KiBOM specifically excludes test points from the final BOM.

JacobChristApium · December 22, 2020, 12:05am

Its a custom script based on bom_html_with_advanced_grouping.py that comes with kicad. I just tested with this script and it does the same thing.

My major concern is inadvertently leaving some parts off of a BOM then needing to pay for shipping again and having to wait for a couple of extra parts to come in. Murphy of course dictates that this will happen when I’m in a hurry.

Also note, my original question is what makes a component interesting? I can generate the BOM correctly if I just use net.components instead of getInterestingComponents().

Jacob

der.ule · December 27, 2020, 6:26pm

Test points are excluded from the BOM script automatically a there are also some other stuff.

EDIT:
Check lines 50-70:

https://github.com/KiCad/kicad-source-mirror/blob/master/eeschema/plugins/python_scripts/kicad_netlist_reader.py

JacobChristApium · December 28, 2020, 5:44pm

That seems quite short sighted…

What if I want my test points on my BOM? Am I supposed change the part reference?

https://www.digikey.com/en/products/detail/keystone-electronics/5270/12751718

But thanks, that answers my question of what is considered an interesting component:

github.com

KiCad/kicad-source-mirror/blob/a761d42c127c30c410e3a6a54edea3e478942479/eeschema/plugins/python_scripts/kicad_netlist_reader.py#L569-L632


def getInterestingComponents(self):
    """Return a subset of all components, those that should show up in the BOM.
    Omit those that should not, by consulting the blacklists:
    excluded_values, excluded_refs, and excluded_footprints, which hold one
    or more regular expressions.  If any of the the regular expressions match
    the corresponding field's value in a component, then the component is exluded.
    """

    # pre-compile all the regex expressions:
    del self.excluded_references[:]
    del self.excluded_values[:]
    del self.excluded_footprints[:]

    for rex in excluded_references:
        self.excluded_references.append( re.compile( rex ) )

    for rex in excluded_values:
        self.excluded_values.append( re.compile( rex ) )

    for rex in excluded_footprints:

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Jacob

system · March 28, 2021, 5:44pm

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