@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:
$GPRMC,055131.00,V,,,,,,,310717,,,N*7D
$GPVTG,,,,,,,,,N*30
$GPGGA,055131.00,,,,,0,00,99.99,,,,,,*65
$GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30
$GPGLL,,,,,055131.00,V,N*49
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?