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A.R.Drone Developer Guide - Abstract

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70<br />

8.6 Nav-board configuration<br />

PIC:ultrasound_freq<br />

Read/Write<br />

Description :<br />

Frequency of the ultrasound measures for altitude. Using two different frequencies can reduce<br />

significantly the ultrasound perturbations between two AR.<strong>Drone</strong>s.<br />

Only two frequencies ar availaible : 22.22 and 25 Hz.<br />

The enum containing the values are found in the ardrone_common_config.h file.<br />

AT command example : AT*CONFIG=605,"pic:ultrasound_freq","7"<br />

API use example :<br />

ARDRONE_TOOL_CONFIGURATION_ADDEVENT (ultrasound_freq, ADC_CMD_SELECT_-<br />

ULTRASOUND_22Hz, myCallback);<br />

PIC:ultrasound_watchdog<br />

Description :<br />

Debug configuration that should not be modified.<br />

PIC:pic_version<br />

Description :<br />

The software version of the Nav-board.<br />

Read/Write<br />

Read only

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