Too many big words Charlie about wwvb HOT 7 CLOSED

Feedback:
Tried the late Nano_with_GPS2.ino, also pulled down the AtTinyGPS stuff so it compiled.

Got this from the serial terminal over a minute or so
Waiting on first GPS sync error : NMEA string $GPTXT is not supported
error : NMEA string $GPTXT is not supported
.......error : NMEA string $bb�’ is not supported
...error : NMEA string $lbb�’ is not supported
.............................error : NMEA string $ŒŽ�rl is not supported
........error : NMEA string $bpœ is not supported
.error : NMEA string $�bŒbl is not supported
....error : NMEA string $ŒŽrl is not supported ..............error : NMEA string $lbnŽŒ is not supported ..................error : NMEA string $ŒŽbbb is not supported .........................error : NMEA string $ŒŽrl is not supported
..error : NMEA string $b‚p is not supported
.....error : NMEA string $��� is not supported
.....error : NMEA string $rrƒbì is not supported
.................error : NMEA string $ì�Œ is not supported
.......error : NMEA string $rr‚bì is not supported
...............

from wwvb.

First things first - im changing this back to 9600 BAUD as some GPS units dont support 14400 BAUD.

As discussed - that issue is because some ublox GPS units dont accept PMTK command strings 👎 .
I do have a thought on that though - do a raw capture of the strings sent from u-connect when from you:

1. send RMC & GGA only
2. 1Hz update rate (or slower)

I think ive sorted out my issue - the interrupt was taking too long because of the processing overhead, so i have changed it a very small amount so that i dont need to do cli() before it (then sei() after).

from wwvb.

Because of this bugfix 👎 the calibration i completed using minimum.ino is incorrect now

from wwvb.

More feedback.
This is from Nano_with_GPS2. Looks more promising.

Waiting on first GPS sync .................. GPS synced!

GPS SYNCED

IsValid : 1
Quality : 1
Satellites : 9
Date/Time : 05:53 on 14/02/2016
WWVB transmit started

from wwvb.

WWVB & Clocks output_250 kHz, 2 M Samples [7].zip

from wwvb.

Added a Saleae capture of both the Nano's WWVB pin and a voltage boosted inverted (via a BC549 tranny) signal from the test clocks RX pin.

At this point in time I have not had a successful time sync on the clock with Nano_with_GPS2 (but did with minimum.ino. I guess there is still a timing issue on the WWVB.

from wwvb.

I think i can safely close this with the latest update 😄

from wwvb.