Replies

  • If you want to try things on your own, rather than go with the provided code, you will discover that the ublox is much better documented. The MediaTek has "custom" firmware which is very poorly documented -- you will need to collect MediaTek documents for devices from several other customers, put the pieces together, and try things. 

     

    The MediaTek is physically a little more durable.

     

    The MediaTek can be stubborn sometimes getting a lock (especially if someone is watch) when the signal is weak (indoors) but amazing at maintaining a lock even indoors. 

     

    As for losing signal in 3D...maybe. The MediaTek does seem to have some nulls near the horizon (possibly off the corners, I ought to play with that some time to get a better understanding) that may affect you if you spend a lot of time in steep banks. But the inverted thing ... not really. My MediaTeks work just about as good upside down as right side up. I probably ought to play with that some more and quantify the data.

     

  • The antenna is one of the biggest ones.   The Mediatek has a ceramic (patch) which has to be pointed pretty much skyward to get a good signal.   The Ublox has the helical ceramic which can be pointed in many orientations.

     

    For a quad/tri/octo/other multi-rotor you can pretty much assume it will be facing the sky all the time so you can get away with the Mediatek.

     

    For an acrobatic/3D helicopter or airplane you may lose signal while inverted or in banked turns/barrel rolls prompting the need for a helical antenna.

     

    General positioning can also necessitate the helical antenna

This reply was deleted.

Activity

DIY Robocars via Twitter
RT @TinkerGen_: "The Tinkergen MARK ($199) is my new favorite starter robocar. It’s got everything — computer vision, deep learning, sensor…
yesterday
DIY Robocars via Twitter
yesterday
DIY Robocars via Twitter
RT @roboton_io: Join our FREE Sumo Competition 🤖🏆 👉 https://roboton.io/ranking/vsc2020 #sumo #robot #edtech #competition #games4ed https://t.co/WOx…
Nov 16
DIY Drones via Twitter
First impressions of Tinkergen MARK robocar https://ift.tt/36IeZHc
Nov 16
DIY Robocars via Twitter
Our review of the @TinkerGen_ MARK robocar, which is the best on the market right now https://diyrobocars.com/2020/11/15/first-impressions-of-tinkergen-mark-robocar/ https://t.co/ENIlU5SfZ2
Nov 15
DIY Robocars via Twitter
RT @Ingmar_Stapel: I have now explained the OpenBot project in great detail on my blog with 12 articles step by step. I hope you enjoy read…
Nov 15
DIY Robocars via Twitter
RT @DAVGtech: This is a must attend. Click the link, follow link to read the story, sign up. #chaos2020 #digitalconnection #digitalworld ht…
Nov 15
DIY Robocars via Twitter
RT @a1k0n: Got a new chassis for outdoor races (hobbyking Quantum Vandal) but I totally didn't expect that it might cause problems for my g…
Nov 11
DIY Drones via Twitter
First impressions of the Intel OpenBot https://ift.tt/36qkVV4
Nov 10
DIY Robocars via Twitter
Nov 9
DIY Robocars via Twitter
Excellent use of cardboard instead of 3D printing! https://twitter.com/Ingmar_Stapel/status/1324960595318333441
Nov 7
DIY Robocars via Twitter
RT @chr1sa: We've got a record 50 teams competing in this month's @DIYRobocars @donkey_car virtual AI car race. Starting today at 10:00am…
Nov 7
DIY Robocars via Twitter
Nov 6
DIY Robocars via Twitter
RT @a1k0n: Car's view, using a fisheye camera. The ceiling light tracking algorithm gave me some ideas to improve ConeSLAM, and having grou…
Nov 5
DIY Robocars via Twitter
RT @a1k0n: To get ground truth I measured the rug, found the pixel coordinates of its corners, calibrated my phone camera with my standard…
Nov 5
DIY Robocars via Twitter
RT @a1k0n: @DIYRobocars is back in December, but outside. Time to reinvestigate ConeSLAM! I rigged up a quick and dirty ground-truth captur…
Nov 5
More…