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AutoQuad Forum • View topic - Incorrect voltage shown in QGC and Terlemetry

Incorrect voltage shown in QGC and Terlemetry

Radio, Telemetry, FTDI/USB, ESCs, Motors, etc.

Re: Incorrect voltage shown in QGC and Terlemetry

Postby kinderkram » Sat May 24, 2014 8:27 am

Duke,
latest fw for DIMU with HOTT telemetry for board rev1 is r380:
http://autoquad.org/software-downloads/?did=128

Latest experimental fw is r395:
ftp://ftp.autoquad.org/3/334693_22529/a ... -dimu-1.1/

There´s no such build number you mentioned in your first post. ;)

Try both, don´t use the mentioned parameter file and see what happens.
kinderkram
 
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Re: Incorrect voltage shown in QGC and Terlemetry

Postby joebar.rc » Sat May 24, 2014 9:48 am

I'll compile a new version later this weekend, but there are so much (HoTT) changes in it besides the AQ changes that you must consider this experimental beta :). Although I already have several people flying with it for weeks based on 385. I did not yet fly 395 myself.. I guess the most significant AQ change is in r390 where the param flash is reconfigured, rest is for M4 and a nav bug.
joebar.rc
 
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Re: Incorrect voltage shown in QGC and Terlemetry

Postby DUKE40 » Mon Jun 02, 2014 8:32 pm

Best regards,
Image
DUKE40
 
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Joined: Tue Mar 26, 2013 9:49 pm

Re: Incorrect voltage shown in QGC and Terlemetry (SOLVED)

Postby DUKE40 » Mon Jun 02, 2014 9:17 pm

I have flashed again and now the voltage is pretty what is expected.
There must have been something going wrong while flashing.
Now everything seems to be working as it should, tomorrow I will do the Tare and onboard magnetic calibration.
And then hopefully the maiden flight can take place.


Again thanks to all for the hints and advises.
Best regards,
Image
DUKE40
 
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Re: Incorrect voltage shown in QGC and Terlemetry

Postby JussiH » Tue Jun 03, 2014 2:18 pm

JussiH
 
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Joined: Thu Jun 21, 2012 9:25 pm

Re: Incorrect voltage shown in QGC and Terlemetry

Postby vAkUuM » Sun Dec 21, 2014 7:57 pm

Hello,
I have same problem: when I connect my board to GCS it show emergency condition then critical condition, and zero v.
I check with multimeter R3 show 1.31K but on R4 first time it show 11K, now it show 150K. All time board was powered from 4s then from 15 v can. Has anybody any ideas?
Thank you, Valentin.
vAkUuM
 
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Location: Riga, Latvia

Re: Incorrect voltage shown in QGC and Terlemetry

Postby vAkUuM » Fri Jan 09, 2015 12:17 pm

Hello,
Can I repeat again my question: On my board I have 1.3K on R3 and 167K on R4. Also in GCS voltage shown zero.

Thank you,

Valentin
vAkUuM
 
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Joined: Thu Apr 24, 2014 4:36 pm
Location: Riga, Latvia

Re: Incorrect voltage shown in QGC and Terlemetry

Postby Max » Fri Jan 09, 2015 9:27 pm

Resistor values should be 1.3K and 8.45K (for rev1) or 4.7K (for rev0).

-Max
Max
 
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Re: Incorrect voltage shown in QGC and Terlemetry

Postby DUKE40 » Tue Feb 10, 2015 1:34 pm

Hi,

I have now a similar issue with the M4.
I use the BLDC Board of aBUGSworstnightmare.
I have connected ADC and GND to my power distribution board, I selected "External Voltage Sensor" in the configuration.
I have connected my 2S Lipo to the power distribution board.
But in QGC it stills shows me avalue for the voltage which is not stable and moving between 1.1V and 3.5V, but rather below 3V, despite my Lipo having >7.5V.

What might be wrong and where might I need to tweek to get the voltage read correctly?
Best regards,
Image
DUKE40
 
Posts: 364
Joined: Tue Mar 26, 2013 9:49 pm

SOLVED: Incorrect voltage shown in QGC and Terlemetry

Postby DUKE40 » Tue Feb 10, 2015 1:56 pm

After I disconnected the M4 completely and powered it again, it now shows the right voltage.
Best regards,
Image
DUKE40
 
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