I have an older GRT Avionics Horizon HX dual EFIS system that I'm going to install in the RV7 I'm building. A few months ago I ordered the GRT Safefly GPS and EchoUAT package from GRT to go with the EFIS. I finally got around to trying to interface it with my EFIS a couple of weeks ago, and I've had nothing but frustration since. I finally sent it back to GRT to see if they could fix it. To their credit the returned it to me promptly. Before attempting to connect it to the EFIS, I took it outside and connected it to a battery, then launched the app on my phone (after connecting to it via wifi). The monitor display showed GPS lat, lon, and altitude (where it hadn't shown anything before). Success!
Next I connected it to my EFIS, and I could see that data was flowing to the EFIS via a serial port. Unfortunately I did not have any GPS coordinates. So I launched the app and now it's not showing GPS lat, lon, or altitude. I disconnected it from the EFIS to see if the EFIS was somehow interfering with the operation of the GPS, and still no GPS data.
Have any of you had any experience with the Safefly GPS--especially interfacing to one of their EFIS? If so, were you able to get it to work? I'm totally frustrated with this situation and I've reached out to GRT again. Hopefully there's something simple that I'm missing.
Next I connected it to my EFIS, and I could see that data was flowing to the EFIS via a serial port. Unfortunately I did not have any GPS coordinates. So I launched the app and now it's not showing GPS lat, lon, or altitude. I disconnected it from the EFIS to see if the EFIS was somehow interfering with the operation of the GPS, and still no GPS data.
Have any of you had any experience with the Safefly GPS--especially interfacing to one of their EFIS? If so, were you able to get it to work? I'm totally frustrated with this situation and I've reached out to GRT again. Hopefully there's something simple that I'm missing.