Hello, I am building a TBS Discovery with APM 2.5+ with ublox gps and I'm running into a weird issue.

29000_10151626896104705_646419408_n.jpg

With power going through the Power Module, I get 0 satcount, and on USB power, I get 10+ satelites instantly.

I've checked it by having the APM powered only by USB power, logging on the PC. I get solid 10+ satelites. As soon as I attach external power (ie: battery, lab-grade DC powersupply, etc), satelite drops down to zero.  I also did a test on the console, by typing test command, and gps. same results there.

I've tried grounded aluminum foil wrapped around the power module to see if that is it, no dice. This is the second Power Module that is doing this, first one went back and got replaced because I thought the problem was the power module.

I hope you guys can tell me what I need to do to fix this... Thanks in advance.

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • Apparently the TBS Discovery's distribution board on the bottom plate is causing havoc. I've removed the APM about 5mm away from the plate, and all problems are gone. Thanks :)

This reply was deleted.

Activity

DIY Robocars via Twitter
RT @Heavy02011: ⁦@diyrobocars⁩ : A Home-brew computer club* for Connected Autonomous Driving. talk at #piandmore ⁦@PiAndMore⁩ on Jan 23rd h…
12 hours ago
DIY Robocars via Twitter
RT @a1k0n: New blog post! Deep dive into my ceiling light based localization algorithm which runs in 1ms on a Raspberry Pi 3: https://t.co/…
12 hours ago
DIY Robocars via Twitter
Great new guide to using @donkey_car https://custom-build-robots.com/donkey-car-e-book-en
12 hours ago
DIY Robocars via Twitter
RT @chr1sa: The next @DIYRobocars virtual AI race is tomorrow morn at 9:00am PT. You can watch live on Twitch https://www.meetup.com/DIYRobocars/events/275268196/
yesterday
DIY Robocars via Twitter
New version of Intel OpenBot! This resolves many of the issues with the first version, including a much smoother tr… https://twitter.com/i/web/status/1352395636369313798
Thursday
DIY Drones via Twitter
Using ArduRover with an RTK GPS https://ift.tt/2N9I3RO
Tuesday
DIY Drones via Twitter
Monday
DIY Robocars via Twitter
Monday
DIY Robocars via Twitter
Jan 15
DIY Robocars via Twitter
Jan 15
DIY Drones via Twitter
Jan 14
DIY Robocars via Twitter
RT @Heavy02011: @diyrobocars : A Home-brew computer club* for Connected Autonomous Driving on Jan 23rd, 2021 https://www.meetup.com/Connected-Autonomous-Driving/events/275728684/ #Meetu…
Jan 14
DIY Robocars via Twitter
Jan 14
David Hori liked Isabella Domi's profile
Jan 12
DIY Robocars via Twitter
RT @Heavy02011: ⁦@diyrobocars⁩ Autonomous Driving Assembly at #rC3. join us at https://rc3.world/rc3/assembly/diyrobocars-f1tenth/ ⁦@f1tenth⁩ ⁦@DAVGtech⁩ ⁦@DWalmroth⁩…
Jan 11
DIY Robocars via Twitter
RT @chr1sa: New car designs coming for our next @DIYRobocars @donkey_car virtual race on the 23rd. Choose any one you want at race time Le…
Jan 11
More…