SRF08 ultrasonic range meter

Module XML file: alt_srf08.xml

No detailed description...

Example for airframe file

<modules>
  <load name="alt_srf08.xml"/>
</modules>

Module functions

Init Functions

These initialization functions are called once on startup.

• srf08_init()

Event Functions

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

• srf08_event()

Periodic Functions

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

• srf08_initiate_ranging()
  • Frequency in Hz: 1
  • Autorun: LOCK
    Periodic function automatically starts after init and can't be stopped.
• srf08_receive()
  • Frequency in Hz: 1
  • Delay: 4
    Integer to impose a sequence (between 0 and main_freq/function_freq)
  • 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

• alt_srf08.h

Source Files

• modules/sensors/alt_srf08.c

Raw alt_srf08.xml file:

<!DOCTYPE module SYSTEM "module.dtd">

<module name="alt_srf08" dir="sensors">
  <doc>
    <description>SRF08 ultrasonic range meter</description>
  </doc>
  <header>
    <file name="alt_srf08.h"/>
  </header>
  <init fun="srf08_init()"/>
  <periodic fun="srf08_initiate_ranging()" freq="1"/>
  <!-- 65ms since initiate_ranging() (the spec ask for 65ms),
       delay="4", 60Hz, 4x 16.7ms = 66.7ms -->
  <periodic fun="srf08_receive()" freq="1" delay="4"/>
  <event fun="srf08_event()"/>
  <makefile>
    <file name="alt_srf08.c"/>
    <define name="TELEMETER"/>
  </makefile>
</module>