Hello
So i just got my brand new pixhawk + 3dr external mag+gps combo from unmannedtech, but Pixhawk doesn’t recognize GPS at all (ext. compass works fine)
Mission planner says - No GPS and in terminal under test -> gps only dots (…) are running.
GPS blue light is blinking and i tested the same gps+mag module on apm 2.6 and it worked there perfectly.
I have tested another 3dr gps+mag module and that one also didn’t work.
I have tried numerous reflashes of different firmware versions, but still pixhawk does not see GPS at all.
Cables are all fine, tested them with multimeter and tried multiple cables.
sorry, it seems like your GPS is bad, do you have access to another GPS module you can test with ?
if you have a USB-serial adapter, you could try to inject serial data into pixhawk’s RX pin , or check that a computer can display GPS’s TX data. This will at least tell you which part to blame.
[quote=“surndliha”] tested the same gps+mag module on apm 2.6 and it worked there perfectly.
I have tested another 3dr gps+mag module and that one also didn’t work.[/quote]
If you were testing it with the same cable it can´t work, check the schematics attached. (a little small, but this forum allows only 600px)
Btw. the eagle files, listed at some of the stores below the 3DR GPS / Compass Combo (V1.2) show boardlayout and schematics of the 3DR GPS only (V1.1) So you have to find the schematics of the V1.2 first, before you are able to check wiring .