Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


3535 posts

Uber Geek
+1 received by user: 2042

Trusted
Spark NZ

Topic # 225401 16-Nov-2017 18:39
Send private message

I have an Arduino Mega 2560 with a GPS shield on it (Ublox Neo-6M based) and I am using the UBX nav.pvt message (more efficient/faster)... Everything is fine, except of course a mega is large and a shield is much bigger than I need - it's fine for prototyping and SW development.

 

I have a Teensy 3.2 and a standalone Neo-6M GPS and I was trying to get them working last night (They are the production parts so was testing they all actually work together before designing the PCB). The GPS unit was detected, NMEA sentences were spit out just fine. Great I thought, now I'll load my full program and clean it up so it works on the Teensy.

 

3 hours later...

 

Doesn't work... Seems like the GPS chip won't take the command to enable one specific UBX message (It does disable the NMEA just fine, and change the rate to 5Hz)... Stumped.

 

Reduce program to just bridging serial and the GPS so I can run U-centre (Ublox GPS management app) and sure enough, some of the commands simply don't work - they come back as not recognised. So I got to the extent of manually wiring up the damn shield from the mega to the Teensy (only needed power, gnd, RX,TX) and guess what? Perfect.

 

So this damn counterfeit GPS works fine in default modes, and supports SOME of the extended commands, but not all - and not the one I need.

 

I wish it just didn't work at all - I'll never get that time back :-(

 

Now to try and find a small unit that uses a legit chip. Ugh.

 

Just had to vent - that's one of the oddest failure/counterfeit manifestations I have seen.

 

 

 

Cheers - N


Create new topic
'That VDSL Cat'
7928 posts

Uber Geek
+1 received by user: 1619

Trusted
Spark
Subscriber

  Reply # 1902896 16-Nov-2017 18:52
Send private message

heh, i was looking at picking up a few of those for some of my projects..

 

 

 

interesting to have the full insight.

 

I've noticed this with a few chipsets out there.. some of it is just so cheap that i kinda just go here is my test script. Does it work, nope Fk it, my time is more worth just reordering....





#include <std_disclaimer>

 

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.


61 posts

Master Geek
+1 received by user: 6


  Reply # 1902908 16-Nov-2017 19:35
Send private message

I've seen mention of this kind of thing before with fake u-blox M8N modules:

 

https://rtklibexplorer.wordpress.com/2016/12/06/counterfeit-m8n-modules/

 

I've also had pretty good success getting raw data from a NEO-6M module from Instant Panel and using it with RTKLIB. 




3535 posts

Uber Geek
+1 received by user: 2042

Trusted
Spark NZ

  Reply # 1903484 17-Nov-2017 22:03
Send private message

Oh man, I'm on a roll... Just got a couple of Teensy 3.2s and they are both counterfeit as well... The IDE even pops up a big warning window saying basically that they will explode and kill my children or pets.

 

They do appear to work except for the pop up warning every time I load a sketch onto them.

 

Annoying but not disruptive like the GPS issue.

 

 

 

Cheers - N


Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

N4L helping TAKA Trust bridge the digital divide for Lower Hutt students
Posted 18-Jun-2018 13:08


Winners Announced for 2018 CIO Awards
Posted 18-Jun-2018 13:03


Logitech Rally sets new standard for USB-connected video conference cameras
Posted 18-Jun-2018 09:27


Russell Stanners steps down as Vodafone NZ CEO
Posted 12-Jun-2018 09:13


Intergen recognised as 2018 Microsoft Country Partner of the Year for New Zealand
Posted 12-Jun-2018 08:00


Finalists Announced For Microsoft NZ Partner Awards
Posted 6-Jun-2018 15:12


Vocus Group and Vodafone announce joint venture to accelerate fibre innovation
Posted 5-Jun-2018 10:52


Kogan.com to launch Kogan Mobile in New Zealand
Posted 4-Jun-2018 14:34


Enable doubles fibre broadband speeds for its most popular wholesale service in Christchurch
Posted 2-Jun-2018 20:07


All or Nothing: New Zealand All Blacks arrives on Amazon Prime Video
Posted 2-Jun-2018 16:21


Innovation Grant, High Tech Awards and new USA office for Kiwi tech company SwipedOn
Posted 1-Jun-2018 20:54


Commerce Commission warns Apple for misleading consumers about their rights
Posted 30-May-2018 13:15


IBM leads Call for Code to use cloud, data, AI, blockchain for natural disaster relief
Posted 25-May-2018 14:12


New FUJIFILM X-T100 aims to do better job than smartphones
Posted 24-May-2018 20:17


Stuff takes 100% ownership of Stuff Fibre
Posted 24-May-2018 19:41



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.