If you don't know the answer, please point me to some resources that may help. I've followed the instructions for uploading the code here, so I'm not sure what could be wrong."
Hi,I'm trying to read sonar data in real time. I tried to modify the code (in GCS_Mavlink) so that the VFR_HUD mavlink message would send sonar_alt through the "alt" field, but when I upload the code, I can no longer connect to Mission Planner. When…