@cyclin_al1 ok... I have changed my code to interpret the output as characters.
Current code version here:
I am getting NMEA sentences clearly now:
In GPGLL I should have GPS coordinates (see: https://cdn.sparkfun.com/datasheets/GPS/GP-735T-150203.pdf)
How it's possible that this GP-735T module connected directly works fine (see couple of posts above)
and once it's going over Carloop board - it's having issues to get GPS fix?
Wrong power level delivered to GPS?
Cross checked once more:
* Once it's connected via Carloop board - it's getting 3.3V and cannot get GPS fix at all.
* Once connected directly via TTL-to-USB - it's getting 5V and gets first GPS fix in 1-2 minutes.
Any ideas how to solve it with some rewiring on existing board?