plz help can’t figure out what is wrong I am very new. I was initially very stared to ask because I do not know much about KiCAD.
A different error message explained here but same underlying cause: ErrType(3): Pin connected to some others pins but no pin to drive it
Not on the question but to ‘very new’.
- I would never drive a wire through IC symbol even it probably is ok for KiCad.
- I have never seen that V1 symbol in KiCad. I suppose that it can be a part of Spice that I never used in KiCad. So, even not knowing that symbol I suppose that you will get -5V at VCC as you connected +5 output to GND (=0V) so the other end will be -5V.
I agree with Piotr, V1 seems to be a simulation symbol. If you want to make a board, you would place some sort of connector instead.
Now, pins 1 and 8 are of type “Power Input” and thus must be connected to a single “Power Output” somewhere on the net to satisfy the ERC. But since connector pins usually are of type “Passive” you have to add a Power Flag (PWR_FLAG) to each net to get rid of this message.
It tells the ERC that you know that there is no driving source but it will be driven if someone connects a battery.
Hello and welcome @RITO ,
In case you didn’t realize, the ERC only checks the Kicad rules for connecting components. The ERC does not test to see if your design works.
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