View source for DST1200 User Guide

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<metadesc>Detect several solid objects up to 10m away in a wide sensing range, or use the Sonar Phidget as an ultrasonic range finder.</metadesc>
[[Category:UserGuide]]
==Getting Started==
{{UGIntro|DST1200}}
*[{{SERVER}}/products.php?product_id=DST1200 DST1200 - Sonar Phidget]
* {{VINTHub}}
* {{CT|PhidgetCable|Phidget cable}}
* USB cable and computer


Next, you will need to connect the pieces:
[[Image:DST1200_Functional.jpeg|600px|right|link=]]
# Connect the DST1200 to the VINT Hub using the Phidget cable.
# Connect the VINT Hub to your computer with a USB cable.

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{{UGIntroDone|DST1200}}

==Using the DST1200==
{{UGcontrolpanel|DST1200}}

{{ugDistanceSensorSonar|, labelled ''Sonar Phidget'', }}

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{{ugUsingYourOwnProgram|This Phidget is compatible with the {{ExampleLink|DistanceSensor}}.}}

==Technical Details==
=== Quiet Mode ===
The DST1200 has a ''Quiet Mode'' property which, as the name suggests, reduces the volume of the sound pulses used by the sonar sensors. While the sound that this Phidget makes is audible in either mode, it is much more noticeable without quiet mode enabled. By enabling quiet mode, you will affect the maximum sensing range and the number of reflections detected. Quiet mode also consumes less power, as explained in the next section.

=== Current Consumption ===
The current consumption of the DST1200 varies depending on the data interval you choose. The longer the interval between samples, the lower the current consumption. Switching to quiet mode also lowers current consumption slightly. 

[[Image:DST1200-current.jpg|link=|center]]

===Amplitude Response===
When you receive data from the DST1200, you'll end up with an array of sonar reflections that each have a distance and an amplitude. The distance, of course, refers to how far away the object is. The amplitude gives you a general idea of the size of the object. The amplitude value can range from 3 to approximately 900, with 3 being a very small reflection and 900 being a very large one. In some applications, you'll want to ignore reflections with an amplitude you deem is too small.

===Saturation===
The DST1200 will fire saturation error events when the nearest reflection is closer that 40mm from the sensor. At this range it is too close for the sensor to accurately determine the range of the object. 

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