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The Motion Sensor Phidget allows you to detect motion up to ten meters away. This sensor will output a steady voltage when no objects are detected. The voltage output will increase or decrease when motion is detected. Movement that fills more of the sensor’s field of view will result in a larger change in voltage. This Phidget connects to your computer through a VINT Hub.
This sensor can be read by any Phidget with an Analog Input or VINT Hub port. VINT Hub ports can behave just like Analog Inputs, but have the added flexibility of being able to be used as digital inputs, digital outputs, or ports to communicate with VINT devices. For more information about VINT, see the VINT Primer.
|Image||Part Number||Price||Number of Voltage Inputs||Voltage Input Resolution|
|HUB0000_0||$30.00||6 (Shared)||* 16 bit|
|HUB5000_0||$60.00||6 (Shared)||* 16 bit|
|SBC3003_0||$120.00||6 (Shared)||* 16 bit|
This sensor requires a Phidget cable to connect it to an InterfaceKit or Hub. You can solder multiple cables together in order to make even longer Phidget cables, but you should be aware of the effects of having long wires in your system.
Welcome to the MOT2002 user guide! In order to get started, make sure you have the following hardware on hand:
Next, you will need to connect the pieces:
Now that you have everything together, let's start using the MOT2002!
In order to demonstrate the functionality of the MOT2002, we will connect it to the HUB0000, and then run an example using the Phidget Control Panel on a Windows machine.
The Phidget Control Panel is available for use on both macOS and Windows machines. If you would like to follow along, first take a look at the getting started guide for your operating system:
Linux users can follow the getting started with Linux guide and continue reading here for more information about the MOT2002.
After plugging in the MOT2002 into the HUB0000, and the HUB0000 into your computer, open the Phidget Control Panel. You will see something like this:
The Phidget Control Panel will list all connected Phidgets and associated objects, as well as the following information:
The Phidget Control Panel can also be used to test your device. Double-clicking on an object will open an example.
The MOT2002 detects changes in infrared radiation caused by the movement of a person or object whose temperature differs from their surroundings. The sensor will return 0 when there is no movement detected. When there is movement detected, the sensor will return a non-zero value.
As the MOT2002 detects temperature differences, it is well suited to detecting the motion of people by their body temperature.
Tip for using the MOT2002: Set a threshold for movement detection above and below 0 to avoid creating false positives. For example, only trigger movement events at less than -0.1 or greater than 0.1.
Double click on the Voltage Input channel class under the port your MOT2002 is connected to.
The Phidget Cable is a 3-pin, 0.100 inch pitch locking connector. Pictured here is a plug with the connections labelled. The connectors are commonly available - refer to the Analog Input Primer for manufacturer part numbers.
The Change Trigger is the minimum change in the sensor data needed to trigger a new data event. The Data Interval is the time (in ms) between data events sent out from your Phidget. You can modify one or both of these values to achieve different data outputs. You can learn more about these two properties here.
Before you open a Phidget channel in your program, you can set these properties to specify which channel to open. You can find this information through the Control Panel.
1. Open the Control Panel and double-click on the red map pin icon:
2. The Addressing Information window will open. Here you will find all the information you need to address your Phidget in your program.
See the Phidget22 API for your language to determine exact syntax for each property.
The objects detected by the MOT2002 must be emitting infrared light in order to be detected, which means they must be giving off heat or be a significantly different temperature than the background it’s contrasted against.
|Controlled By||Voltage Input|
|Sensor Output Type||Non-Ratiometric|
|Horizontal Detection Range||70°|
|Vertical Detection Range||* 70°|
|Motion Detection Distance||** 10 m|
|Current Consumption||140 μA|
|Operating Temperature Min||-30 °C|
|Operating Temperature Max||85 °C|
* - Detection angle is reduced on the side of the lens where the connector blocks its view:
** - Detection distance varies with the size and speed of the object. Our testing was conducted with people moving at walking speed.
|Date||Board Revision||Device Version||Comment|
|February 2020||0||N/A||Product Release|
This device doesn't have an API of its own. It is controlled by opening a VoltageInput channel on the Phidget that it's connected to. For a list of compatible Phidgets with Voltage Inputs, see the Connection & Compatibility tab.
You can find details for the VoltageInput API on the API tab for the Phidget that this sensor connects to.