Yageo KEMET USEQMSKS221600 User manual

Gesture and Motion Evaluation Kits (Digital) USEQMSK_____00
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com 1
SMD Pyroelectric Infrared
Gesture and Motion Evaluation Kits
USEQMSKS221600
USEQMSK1220900
USEQMSKL011600
USEQMSKL221600
for low cost, low power, non-contact
mid IR motion/presence
and gesture detection
User Guide
Rev. 1.5
APR 2022

Gesture and Motion Evaluation Kits (Digital) USEQMSK_____00
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com 2
TABLE OF CONTENTS
1 INTRODUCTION ...........................................................................................................3
2 GETTING STARTED .....................................................................................................3
2.1 Kit Contents............................................................................................................3
2.2 Minimum System Requirements .............................................................................3
3 INSTALLATION .............................................................................................................4
3.1 Installing the KEMET Gesture & Motion Sensing Evaluation Tool Software............4
3.2 Installing the ST Microcontroller USB Driver ...........................................................4
3.3 Installing .NET 4.5 Framework................................................................................4
3.4 Connecting the SMD Gesture and Motion Sensing Evaluation Kit...........................5
4 SOFTWARE USER GUIDE............................................................................................5
4.1 Starting the Software ..............................................................................................5
4.2 Connecting Software to the Demo Kit .....................................................................5
4.3 Different Variations .................................................................................................6
4.4 Navigating the Menus.............................................................................................7
5 GESTURE DETECTION MODE ....................................................................................9
5.1 General Gesture Detection .....................................................................................9
5.2 Gesture Trigger Threshold Option.........................................................................10
5.3 Gesture Detection Algorithm Peak Spread............................................................10
6 PRESENCE DETECTION MODE................................................................................10
6.1 Proximity Detection Algorithm Parameters............................................................11
6.2 Proximity Algorithm...............................................................................................12

Gesture and Motion Evaluation Kits (Digital) USEQMSK_____00
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com 3
1 INTRODUCTION
This user guide describes the different KEMET Gesture and Motion Evaluation Kits for SMD
mid IR gesture and motion sensors. This document covers all the 4 variants of the kits: mid-
range and long-range gesture and mid-range and long-range motion.
2 GETTING STARTED
USEQMSKS221600
USEQMSK1220900
USEQMSKL011600
USEQMSKL221600
Figure 1 –SMD Gesture and Motion Kits USEQMSK_____00
2.1 Kit Contents
1. SMD Long Range Gesture Sensing Kit USEQMSKS221600, including sensor
USEQMSEA221680 2x2 5.0 µm LWP (large aperture), with Fresnel lens
or SMD Medium Range Gesture Sensing Kit USEQMSK1220900, including sensor
USEQMSEA220980 2x2 5.0 µm LWP (small aperture), no optics
or SMD Motion Sensing Kit USEQMSKL011600, including sensor USEQMSEA011680
1px 5.0 µm LWP, with Fresnel lens
or SMD Directional Motion Sensing Kit USEQMSKL221600, including sensor
USEQMSEA221680 2x2 5.0 µm LWP, with Fresnel lens
2. Micro USB to USB cable
3. KEMET Gesture & Motion Sensing Evaluation Tool (Digital) software
click here for downloading the software
2.2 Minimum System Requirements
1. Microsoft® Windows PC
2. 2 GB of RAM
3. 450 MB of available hard-disk space for installation, additional free space required
for storing CSV files
4. 1,024x768 display (1,280x1,024 recommended)
5. Local administrative rights to install device drivers
6. .NET framework 4.5
7. 1 free USB port

Gesture and Motion Evaluation Kits (Digital) USEQMSK_____00
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com 4
3 INSTALLATION
3.1 Installing the KEMET Gesture & Motion Sensing Evaluation Tool
Software
From the software pack available to download here, run the setup.exe file that has this icon.
This will start the installation process.
Figure 2 –Installer Screen
Follow the on screen instructions and enter the information required.
As part of the installation process a check will take place to see if .NET Framework 4.5 is
present. If not, the setup routine can be cancelled and the .NET framework 4.5 can be
downloaded from Microsoft’s website.
A driver is needed for the STM32F303K8T6 microcontroller. This is included in the software
package.
3.2 Installing the ST Microcontroller USB Driver
The software zip file contains a folder called en.stsw-link009.zip. Extract the files and run
either the application dpinst_amd64.exe if you have a 64 bit system or dpinst_x86.exe if
you have a 32 bit system. This will install the USB driver for the ST microcontroller that is
connected to the SMD board.
Once the driver has been installed the USB cable can be connected between the SMD Board
and the computer.
Once connected the green light on the SMD board will be on constantly and the red light will
flash (the microcontroller is the inverse of this, red is on constantly and green flashes).
3.3 Installing .NET 4.5 Framework
If you do not have the .NET 4.5 framework installed on your computer then use the installer
provided (dotnetfx45_full_x86_x64) in the software package.

Gesture and Motion Evaluation Kits (Digital) USEQMSK_____00
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com 5
3.4 Connecting the SMD Gesture and Motion Sensing Evaluation Kit
Connect the USB cable to the kit and Windows PC.
You may see a message suggesting you are required to install a device driver. Follow the on
screen instructions and download a driver from Windows Update or install from the software
package provided.
4 SOFTWARE USER GUIDE
4.1 Starting the Software
Double clicking on the .exe file will open the application. This will open the window shown
below:
Figure 3 - Software Main Page
4.2 Connecting Software to the Demo Kit
To connect to the demo kit, select Device and then Connect to Device.
Figure 2 –Device Connection
This will open a window with all available devices on COM ports.

Gesture and Motion Evaluation Kits (Digital) USEQMSK_____00
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com 6
Figure 3 –Com Port Selection
Connect to the port that is listed once the device is connected. If more than one COM port is
listed this can be checked by disconnecting the device and refreshing the list. Re-connect and
refresh the list then select the COM port that has appeared and click Ok.
Once the device has been selected the software runs through a calibration sequence. Whilst
the calibration sequence is running, the arrow that indicates a gesture direction will spin round
and then vanish upon completion of the calibration. This is required when using the device
without a method of stopping drafts from running across the device.
4.3 Different Variations
The software will automatically determine the type of kit when it is plugged in.
Figure 6 –USEQMSKS221600 and USEQMSK1220900 Gesture Sensing Kits
Figure 7 –USEQMSKL011600 Motion Sensing Kit
Figure 8 –USEQMSKL221600 Directional Motion Sensing Kit

Gesture and Motion Evaluation Kits (Digital) USEQMSK_____00
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com 7
4.4 Navigating the Menus
The main window contains 4 sections: Algorithm, ASIC Control, Wake-Up and System.
4.4.1 Algorithm Tab
•The window showing current detection mode (the button for the active mode, gesture
or presence is highlighted in blue). When an event occurs, the detected event will be
shown with a direction icon.
•4 scope windows which show the signals produced by each of the pixels in the sensor.
•A console which displays detected messages as well as any changes or errors and a
simple setting window where the trigger threshold can be changed.
See below for use of parameters.
4.4.2 ASIC Control Tab

Gesture and Motion Evaluation Kits (Digital) USEQMSK_____00
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com 8
The ASIC box gives the user access to the various parameters that can be controlled on the
output of the SMD USEQ*S sensor.
•Gain: The gains should all be set equal on every channel for gesture detection. They
are allowed to be set independently simply to allow the user complete control over
every aspect of the device that can be set. The gain is set by selecting a capacitor to
be used in the charge amplifier within the device.
•HPF:The high pass filters should again be set equal for gesture detection.
•Transconduct: The transconductance gives the user the ability to set the time
constant of the sensor and amplifier set-up.
•LPF: The low pass filter used is common to all channels of the SMD USEQ*S sensor.
•Sampling Period: This allows the sampling rate to be altered.
4.4.3 Wake-Up Tab
The Wake-Up box allows the setting of the wake-up conditions for the device. The wake-up
only applies when the device is in sleep mode.
•The wake-up works by requiring the signal to be within the range of threshold 1
and 2 or within threshold 3 and 4 for a certain number of samples.
•The number of samples required is in the top right box.
•The channel that is being used for the wake-up condition is selected in the box
above the Apply button.
For more detail on wake-up conditions please refer to the KEMET Sensor Evaluation Tool
Software User Manual.

Gesture and Motion Evaluation Kits (Digital) USEQMSK_____00
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com 9
4.4.4 System Tab
The System box allows the user to set the orientation of the device to ensure directions of
gesture are correctly displayed.
5 GESTURE DETECTION MODE
5.1 General Gesture Detection
The initial settings for the orientation are as shown below.
The gestures will produce a distinct signal shape on each channel as can be seen below.
UP
DOWN
RIGHT
LEFT

Gesture and Motion Evaluation Kits (Digital) USEQMSK_____00
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com 10
The faster the gesture, the closer together the peaks in the signals are. If the signal peaks are
small (can be caused by the hand temperature being close to background temperature), it is
recommended to reduce the sensitivity in the settings window as will be described later.
5.2 Gesture Trigger Threshold Option
Setting the threshold for gestures to be lower will cause a greater chance of false gestures
being registered caused by noise. And setting too high will make registering actual gestures
less likely.
5.3 Gesture Detection Algorithm Peak Spread
•How far apart the peaks in signals can be before considered a gesture. The larger the
value used, the more the system is affected by noise.
•Range: 1 to 400
•Typical: 12
6 PRESENCE DETECTION MODE
A presence event is one that simply states that an object of higher temperature than the
background radiation has come into or moved out of the FoV of the sensor.

Gesture and Motion Evaluation Kits (Digital) USEQMSK_____00
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com 11
6.1 Proximity Detection Algorithm Parameters
It is possible to modify the proximity detection algorithm parameters.

Gesture and Motion Evaluation Kits (Digital) USEQMSK_____00
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com 12
Window Size
•Window width in samples used to detect event.
Larger window allow slower gestures, smaller rejects them.
•Range: 10 to 2,000
•Typical: 400
Detection Threshold
•How high the peak value has to be before recognised for gesture.
•Range: 1 to 20
•Typical: 3
The same ASIC, Wake-Up and System settings are available within the presence section as
in the gesture detection section.
6.2 Proximity Algorithm
The algorithm used for a presence being detected is an analysis of the rate of change of the
signal. A group of 3 data points are averaged and then the following 3 data points averaged.
The averaging reduces the effect of noise on the algorithm, more data points could be used
to improve resistance to noise but that would be dependent on the location of the device in
the end application.
These two averaged values are then used to determine the rate of change of signal by
differentiating with respect to time, or the spacing between data points which in this case is
three.
The detection threshold affects the required rate of change of signal to give a positive motion
detection event. The initial value of 20 give good results but again this can be adjusted
depending on the application’s environment and optical setups that might be in use.