This is a placeholder topic for “PiicoDev Adapter for Breadboards” comments.
The PiicoDev® Adapter for Breadboards allows you to break-out the 4-wires in a PiicoDev cable for prototyping on a breadboard.
Read moreI want to use this adapter to access the first bus of this qt py RP2040 and listen to this piicodev button.
The diagram below from this datasheet asks for pull up resistors from clock to 3.3v and data to 3.3v.
This graph implies I’d enjoy a simple 1k resistor.
I’m wondering if this adapter already contains a pull up resistor or if I should add my own. (kinda doesn’t look like it but I thought I’d check before I break something).
Hi @Pixmusix
Having a look at the schematics for his board there are no resistors on it.
I don’t think you’ll blow anything up 
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Thanks Aaron.
What about the piicodev button does it have it’s own internal pullups?
Update :
I just found the schematic for the piicodev button.
It might be that you have already installed one for me in the button. I think that means I won’t need my own.
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Glad to hear you were able to find the answer @Pixmusix!!!
