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Re: [Paparazzi-devel] Lisa/L Baro setup

From: Eric BAHIER
Subject: Re: [Paparazzi-devel] Lisa/L Baro setup
Date: Thu, 04 Oct 2012 23:16:47 +0200
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20120907 Thunderbird/15.0.1


I have changed the first R divider , just after the sensor, with 2 100K resistors,
Now the read value is not over the full range,

Now the quad can know his altitude....



Le 03/10/2012 20:56, Eric BAHIER a écrit :

Today I try NAV fly on the Quad with LISA/L (I have allready do it with booz and LISA/M)

Every test has been done at sea level (field at 40m, lab at 50m)

The Altitude stay to groud... during manual fly....

With reading the RAWDATA, the AD is at 327xx... (15bits to 1).... if I plug a tub and inspire.... the value go dowm up to -32xxx.

I had look with oscilloscope, the signal is to 3v (same as on the vale on schematics);, but it allready the MAX for the ADC (ADS1114).

It's easly to change the first R divider to have a non-maximum value.

But before do it, I would like to know witch value has been tested with success, and witch parameters must be change in the xml file?

Thank for your help,

Best regards,


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