How do you do hardware debugging (GPS in particular)?

Hi, I run into an issue where I cannot get GPS to work on t-beam, hence though I need to try some debugging myself. Any suggestion how to start? What is the easiest to start? I do have fair amount of coding experience; very little on microcontrollers though. I was thinking on:

  • VS code with Platform IO

But Maybe it’s easier to start with Arduino? Or maybe there are some monitoring tools which would allow me to do without fully building myself firmware from code?

My particular issue is with t-beam v1.2 gps module - there are plenty of topic with no answer which could work for me. E.g. T-beam V1.2 persists saying “No sats” - Meshtastic