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Moitessier HAT - No GPS
(2021-04-26, 06:05 PM)aitonos Wrote:
(2021-04-26, 04:55 PM)Sailoog Wrote: Survive USB3 Interference:

Thanks Siloog, Great to have you back; i read your other post. Hope that all is fine with you and yours!

Will check the link!

I  have even recorded a video of the poltergeist because whatever the usb3.0 device I migth plugged I started losing gps signal (ais and Wifi ok) until just 1-3 satellites or none (complete blackout).

Finally doing trials , I unplugged everything and plugged and let the SSD disk alone, restarted and all went  fine, then I plugged again all other devices (touch monitor, logitech wireless Unifying , USB3.0 hub and USb to serial) and now I even get more saterllites tyhan before (20-21! when before max 13-15)

My Powersupply is 3 Amps DC-DC converter 12-5V , so strentgh of power is discarded.


So finally, good news and no video needed...  Smile

The important thing is that all works now!
As posted in the "survive USB 3 interference", I finally plugged an external GPS antenna to the HAT , and took it 1,5 meters away and then got perfect reception. This might acoid the interference of any USB3.0 device.
Unfortunately, now I have no HAT working as I updated system and got installed Kernel 5.1 not supported by Moitessier HAT drivers. Sad  Can I roll back to previous kernel or should i do a clean install from scrtach ( I also made a SD back on the SSD)
There should be an way to connect the moitessier-hat only via serial NMEA0183. So all the offline times for new drivers for new kernals are history. i did this some time ago (moi V 1) and it worked.

So this maybe an Chance to put it somewhere else away from the noisy PI.

good luck - Holger

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