Paparazzi UAS  v5.15_devel-88-gb3ad7fe
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airspeed_adc module

Airspeed sensor (ADC).

Using the internal ADC.

Example for airframe file

Add to your firmware section: This example contains all possible configuration options, not all of them are mandatory!

1 <module name="airspeed_adc">
2  <define name="AIRSPEED_ADC_SCALE" value="scale factor" />
3  <define name="AIRSPEED_ADC_QUADRATIC_SCALE" value="quadratic scale factor" />
4  <define name="AIRSPEED_ADC_BIAS" value="sensor bias" />
5  <define name="USE_AIRSPEED_ADC" value="TRUE|FALSE" />
6  <configure name="ADC_AIRSPEED" value="ADCX" />
7 </module>

Module configuration options

Configure Options

  • name: ADC_AIRSPEED value: ADCX
    Description: ADC on which sensor is connected

Define Options

  • name: AIRSPEED_ADC_SCALE value: scale factor
    Description: linear scale factor (used if AIRSPEED_QUADRATIC_SCALE is not defined
  • name: AIRSPEED_ADC_QUADRATIC_SCALE value: quadratic scale factor
    Description: it is recommended to use quadratic scale
  • name: AIRSPEED_ADC_BIAS value: sensor bias
    Description: offset on ADC
  • name: USE_AIRSPEED_ADC value: TRUE|FALSE
    Description: set airspeed in state interface (default:TRUE)

Module functions

Init Functions

These initialization functions are called once on startup.

Periodic Functions

These functions are called periodically at the specified frequency from the module periodic loop.

  • airspeed_adc_update()
    • Running at maximum module frequency.
    • Autorun: LOCK
      Periodic function automatically starts after init and can't be stopped.

Files

Header Files

The following headers are automatically included in modules.h

Source Files

Raw airspeed_adc.xml file:

<!DOCTYPE module SYSTEM "module.dtd">
<module name="airspeed_adc" dir="sensors">
<doc>
<description>Airspeed sensor (ADC).
Using the internal ADC.
</description>
<configure name="ADC_AIRSPEED" value="ADCX" description="ADC on which sensor is connected"/>
<define name="AIRSPEED_ADC_SCALE" value="scale factor" description="linear scale factor (used if AIRSPEED_QUADRATIC_SCALE is not defined"/>
<define name="AIRSPEED_ADC_QUADRATIC_SCALE" value="quadratic scale factor" description="it is recommended to use quadratic scale"/>
<define name="AIRSPEED_ADC_BIAS" value="sensor bias" description="offset on ADC"/>
<define name="USE_AIRSPEED_ADC" value="TRUE|FALSE" description="set airspeed in state interface (default:TRUE)"/>
</doc>
<settings>
<dl_settings>
<dl_settings name="airsp">
<dl_setting max="4095" min="0" step="1" module="sensors/airspeed_adc" var="airspeed_adc.offset" shortname="air_bias"/>
<dl_setting max="3" min="0" step="0.001" module="sensors/airspeed_adc" var="airspeed_adc.scale" shortname="air_scale"/>
</dl_settings>
</dl_settings>
</settings>
<header>
<file name="airspeed_adc.h"/>
</header>
<init fun="airspeed_adc_init()"/>
<periodic fun="airspeed_adc_update()" />
<makefile target="ap|sim">
<file name="airspeed_adc.c"/>
</makefile>
<makefile target="ap">
<define name="ADC_CHANNEL_AIRSPEED" value="$(ADC_AIRSPEED)"/>
<define name="USE_$(ADC_AIRSPEED)"/>
</makefile>
</module>