Re: RE: [Paparazzi-devel] IR Sensor Neutral is 735 !!??

[Andrew S]

Hi

Try to measure voltage on the sensor output, it should be 1.5v. If it is, sensor is good.

Cheers

 

 

12.08.10, 09:48, "Edixon Giraldo" <address@hidden>:

Yes, I did check that and it was just as you described.  I did, however, changed from TILTED to ALIGNED and try to recalibrate.  This time I did get a value that was much better and was able to get a response from both sensors of the vertical unit.  This time the value was 478.  It seems the sensors are fine.  Thanks for the info.

Eddie.

---

From: address@hidden
Subject: Re: [Paparazzi-devel] IR Sensor Neutral is 735 !!??
Date: Wed, 11 Aug 2010 20:40:39 -0700
To: address@hidden

What ADC is setup in your airframe file for IR_TOP? 

On a TWOG the 3-pin connector is ADC_0. 

Just want to be sure it's not something simple as that value.

This code should work:

 

 

 

 

 

 

with this in the makefile section:

ap.CFLAGS += -DADC -DUSE_ADC_0 -DUSE_ADC_1 -DUSE_ADC_2

ap.srcs += $(SRC_ARCH)/adc_hw.c

 

Be sure not to enable ADC you are not using. 

 

-David

On Aug 11, 2010, at 5:11 PM, Edixon Giraldo wrote:

Hi, I have been trying to calibrate the IR sensors on my UAV, but, I am getting this really off value for my vertical sensor.  I get 511, 512 on the horizontals, but, for the vertical I get 735.  Do I need to change this sensor or is this normal? 

Thanks.

Eddie.
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