Yeah, i know that feeling bro (being from a so called 3rd world country).im stil waiting for the components , im from cuba so the stuff wil get here on july , china - usa - cuba , you know life jaajaj . im just studing and reserching everything
I went through the similar situation, I had to wait for rp2040 for more than a month but luckily i found the other components locally.
So, during that month I basically read the whole thread twice and believe me all the information for 99% of all possible scenarios is already covered here.
But to save you the trouble of searching see the attached pics regarding your question.
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Last edited by QuiTim,