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Using the Bi-Stable Function of Wireless Passive Infrared Motion Sensors

Keywords: motion sensor, using monnit sensors


Summary:

A brief description of how to set-up and use the bi-stable function of Monnit wireless motion sensors.



All wireless motion sensors shipped since mid 2013 have the ability to trigger when movement is detected or when movement ceases. The "Trigger Direction" feature can be set in the edit section for the motion sensor when logged into your iMonnit account at www.imonnit.com.

1. Once logged into the system, click on the motion sensor that you wish to edit.

2. Click on the "Edit" tab to make changes to it's settings

By default, the Trigger Direction is set to "SINGLE". This means that the motion sensor will notify you when there is motion detected in it's sensing area, but not when motion has ceased. However, If there is no motion detected at the next heartbeat interval, the data will indicate "No Motion".

If you wish to be alerted when motion is detected and when motion has ceased, you can set the Trigger Direction to "BOTH".

This tells the sensor to transmit new data that indicates no motion. The lowest resolution on this feature is two times the Re-Arm time. A sensor in this mode will pick up motion, transmit the data for "Motion Detected", then go to sleep for the rearm time. Once the rearm time has elapsed, it will awaken and being monitoring again. If no motion is present, it will allow the rearm time to elapse and at the end of the rearm time, if no motion is present, it will transmit data for "No Motion". It will continue reporting "No Motion" at each heartbeat interval, until the instant motion is again detected.

In both modes, after the rearm time elapses, the sensor will report when motion is detected again.



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