Hello All
I am using the standard ACM 1280 with MediaTek GPS Module firmware 1.6.
I first build a Quad and uploaded at that time 2.0.39 firmware and both MTEK Blue LED and ACM red LED (C) were working fine when I get a GPS Lock.
Lately I finish building a new Tricopter Frame and I used the same equipment the only difference is I updated the firmware to (Arducopter V2.0.49 Beta Tri) firmware.
and this is what is happening with me in the field:
- The blue LED on the MediaTek module GPS is solid but the red APM GPS LED (C) is OFF.
- If I connect the APM with the (Mission Planner) MP though USB, I get both the Blue and Red LED solid and it shows 3D GPS lock on the MP, but if I disconnect the USB the Red LED goes OFF again and the Blue is solid.
I really appreciate any help and opinions
Replies
Dear Matthew
After intense troubleshooting, I found the problem
I am using a separate power supply for the ACM using an external BEC, it seems that the BEC that I used with the tricopter is giving me 5.6v, every time I connect to USB the ACM get its voltage from the USB port which is pure 5v.
So I connected the BEC that I used when I first build the Quad which gives me 5.13v and everything worked fine, now I get GPS lock both the Blue and Red LED.
I'll go for a flight test tomorrow to see if I can get the Loiter working. Thanks Matthew for your reply, as it is the only reply I got, really appreciate it.
The suggestion may be made to upload again using the Arduino software and configure it for Tri manually. The Arduino always does a good job and it cleans out the boards memory - which is important. Funny things happen if parts of other configs are left intact.