Paparazzi UAS  v5.8.2_stable-0-g6260b7c
Paparazzi is a free software Unmanned Aircraft System.
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Pressure Board Navarro

Module XML file: pbn.xml

by Matthieu Navarro (2010)

  combine differential and absolute pressure sensor (ETS raw sensors)
  controlled by a dspic
  return scaled values over I2C

Example for airframe file

This example contains all possible configuration options, not all of them are mandatory!

1 <modules>
2  <load name="pbn.xml">
3  <define name="PBN_AIRSPEED_SCALE" value="(1./0.54)" />
4  <define name="PBN_ALTITUDE_SCALE" value="0.32" />
5  <define name="PBN_PRESSURE_OFFSET" value="101325.0" />
6  <define name="USE_AIRSPEED_PBN" value="TRUE|FALSE" />
7  </load>
8 </modules>

Module configuration options

Define Options

  • name: PBN_AIRSPEED_SCALE value: (1./0.54)
    Description: quadratic scale factor to convert differential pressure to airspeed
  • name: PBN_ALTITUDE_SCALE value: 0.32
    Description: linear scale factor for altitude
  • name: PBN_PRESSURE_OFFSET value: 101325.0
    Description: pressure offset
  • name: USE_AIRSPEED_PBN value: TRUE|FALSE
    Description: set airspeed in state interface

Module functions

Init Functions

These initialization functions are called once on startup.

Event Functions

These event functions are called in each cycle of the module event loop.

Periodic Functions

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

  • pbn_periodic()
    • Frequency in Hz: 10
    • 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 pbn.xml file:

<!DOCTYPE module SYSTEM "module.dtd">
<module name="pbn" dir="sensors">
<doc>
<description>
Pressure Board Navarro.
by Matthieu Navarro (2010)
combine differential and absolute pressure sensor (ETS raw sensors)
controlled by a dspic
return scaled values over I2C
</description>
<define name="PBN_AIRSPEED_SCALE" value="(1./0.54)" description="quadratic scale factor to convert differential pressure to airspeed"/>
<define name="PBN_ALTITUDE_SCALE" value="0.32" description="linear scale factor for altitude"/>
<define name="PBN_PRESSURE_OFFSET" value="101325.0" description="pressure offset"/>
<define name="USE_AIRSPEED_PBN" value="TRUE|FALSE" description="set airspeed in state interface"/>
</doc>
<settings>
<dl_settings>
<dl_settings NAME="pbn">
<dl_setting MAX="30" MIN="0" STEP="1" module="sensors/pressure_board_navarro" VAR="pbn.airspeed_filter"/>
</dl_settings>
</dl_settings>
</settings>
<header>
<file name="pressure_board_navarro.h"/>
</header>
<init fun="pbn_init()"/>
<periodic fun="pbn_periodic()" freq="10"/>
<event fun="PbnEvent()"/>
<makefile>
<file name="pressure_board_navarro.c"/>
</makefile>
</module>