Azoteq IQ Switch ProxSens Series User manual

IQ Switch®
ProxSens®Series
Copyright © Azoteq (Pty) Ltd 2012.
IQS213 GUI User Manual
Page 1 of 8
All Rights Reserved.
Revision 1.2
September 2012
ProxSense®IQS213 GUI User Guide
IQ Switch®- ProxSense®Series - SwipeSwitch™
Table of Contents
1INTRODUCTION...................................................................................................................................1
2SETUP...................................................................................................................................................1
3GUI OPERATION..................................................................................................................................2
1 Introduction
This user guide describes the basic operation of the IQS213 Graphical User Interface (GUI)
software from Azoteq. The GUI provides a platform for rapid prototyping by enabling application
and development engineers to visualise the real time data stream from the IQS213 Proximity,
Touch and Swipe Sensor.
2 Setup
The IQS213 GUI Software can be downloaded from the “Software and Tools” section on the
Azoteq website: www.azoteq.com
2.1 General Setup
Ensure that the IQS213 has the I2C debug bit programmed, to enable data streaming. The
programming of OTP (One Time Programmable) options can be accomplished with the
Azoteq USBProg.exe software and CT210 (or later) USB dongle.
Connect the GND, VDDHI, RDY, SDA and SCL lines on an IQS213 IC or prototype pcb to
the Azoteq CT210 (Configuration Tool) or DS100 (DataStreamer) USB dongle.
Note: Pull-Up resistors (typ. 10kΩ) may be required on I2C communication lines.
Run the IQS213 Software GUI.

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IQS213 GUI User Manual
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2.2 IQS213 EVKIT (EV03)
Connect the IQS213 EV03 EVKIT to a computer using a suitable USB cable (with the
ON/OFF switch in the OFF position, which disconnects the battery power).
Run the IQS213 Software GUI.
The IQS213 EV03 kit does not require the use of an Azoteq USB dongle to interface with
the IQS213 GUI, since the EV03 kit has been designed to be USB compatible.
IQS213 module pcb
CT210 / DS100
connector
SwipeSwitch™
electrode
*Numerous electrode
designs applicable
ProxSense®
IQS213
SwipeSwitch™
EVKit (EV03)
Plug-in type
electrodes
(Projected / Self
Capacitance)
USB connector
(miniUSB)

IQ Switch®
ProxSense®Series
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IQS213 GUI User Manual
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3 GUI Operation
The IQS213 GUI display is illustrated in Figure 3.1. The “Hints and Tips” Pop-up window in
the centre of the screen contains important information relevant to the GUI software and IC,
please take the time to read though all of the information. The scroll buttons can be used to
flip through the hints and tips and are marked in Figure 3.1
After closing the Hints & Tips window in the centre of the screen, data streaming can be
started by clicking on the “Start” button, also indicated in Figure 3.1
Figure 3.1 IQS213 GUI Startup Screen
After clicking the “Start”Button, the “Electrode Configuration”pop-up window will appear,
as shown in Figure 3.2. Please select the appropriate electrode configuration that match
the electrode design connected to your IQS213 device. The four available options are for 2-
or 3-Channel, Self- or Projected capacitive electrode configurations.
Upon selecting the desired electrode configuration, the GUI will automatically setup the
device and start to stream the IQS213 data.
Scroll
Buttons

IQ Switch®
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IQS213 GUI User Manual
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Figure 3.2 IQS213 Electrode Configuration Selection Pop-up window
After data streaming has commenced, the display will appear as illustrated in Figure 3.3.
The channel data is indicated by bar graphs in the centre of the GUI:
Figure 3.3 IQS213 Data streaming started
Bar Graphs
Event Mode
settings
Swipe Indicator
Electrode
Configuration
Selection

IQ Switch®
ProxSense®Series
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IQS213 GUI User Manual
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Please note that the GUI automatically disables the “Event-Mode”streaming option by
setting the IQS213 device to provide continuous data streaming. This provides a fluent and
continuous stream of data for prototyping and visualisation. Event-Mode I2C (Event-driven /
interrupt driven) communication is the default interface on all IQS213 devices. Therefore,
with the IQS213 IC configured in Event Mode, communication will only occur when the IC
registers an event, such as proximity, touch and swipe detection events. Please see the
IQS213 datasheet for further information regarding Event Mode operation.
When a user performs a swipe action, a swipe event is registered, and the swipe indicator
will light up. The indicator will be toggled once another swipe event is detected.
Channel 0 (CH0) is used as a proximity (PROX) only channel. This channel is realized by
charging all active channel electrodes simultaneously to deliver a distributed proximity
channel. During Low Power (LP) modes, only CH0 is active –upon detection of a PROX
event on CH0, the IC will zoom to Normal Power (NP) for fast touch / swipe detection.
The proximity and touch detection levels (thresholds), as well as the overall sensitivity can
be adjusted individually for each channel, in the “Compensation / Multiplier / Thresholds”
section of the GUI, as illustrated in Figure 3.4.
Figure 3.4 IQS213 GUI Settings
The threshold settings will adjust the proximity and touch detection levels, whereas the
Multiplier and Compensation settings will adjust the counts, and thus the overall sensitivity
of the device. By default the ATI algorithm will adjust these values to the optimum settings
to reach a target count of approximately 640 counts for the proximity channel, and 320 for
the touch channels. ATI can be turned off and the settings selected manually. The ATI
Threshold
settings
Multiplier and
Compensation
settings
ATI settings
Save/Load
settings

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IQS213 GUI User Manual
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settings can be found in the ATI section of the software GUI, as illustrated in the upper right
corner of Figure 3.4.
After the appropriate adjustments have been made to the IC, the settings can be saved to a
file for future use, by making use of the Save/Load function as displayed in the left hand
side of Figure 3.4. This enables settings to be loaded from the file, instead of re-adjusting
all settings from scratch.
Proximity, Touch and Swipe detection events are indicated in the GUI, by the channel light
underneath the corresponding bar graph, as well as the Swipe Indicator light. A blue light
indicates proximity detection, a red light indicates touch detection and the Swipe indicator
swipe detection, as illustrated in Figure 3.5.
Figure 3.5 Proximity, Touch and Swipe indications
The user can also select the desired IQS213 IC type from the “IC Type”tab in the GUI, as
shown in Figure 3.6. This will configure the IQS213 IC to operate as either a SwipeSwitch™
or normal touch and proximity detection device. Please refer to the IQS213 datasheet for IC
type configurations.
Hint: For first-time users of IQS213 SwipeSwitch™ related devices, it is recommended to
select the “zz1 x2x zz3”IC type option, if using a 3-channel swipe electrode configuration
(see Figure 3.6). Selecting this IC type, together with the “Zero State”= On function, will
provide the most flexible swipe detection capability.
Proximity
Detection
Touch Detection
Swipe
Detection

IQ Switch®
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IQS213 GUI User Manual
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Figure 3.6 IQS213 IC Type Selection
To visualise detailed changes in data with respect to time (discrete samples), the “Scope
View” can be enabled by clicking on the “Scope” button, as illustrated in Figure 3.7.
Figure 3.7 IQS213 GUI - Scope View
Scope View Enable
Channel Data
Scope View settings

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IQS213 GUI User Manual
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Each channel’s visibility and colour can be adjusted along with the scale of the scope view,
in the scope view settings section, on the right hand side of the scope view window.
To return to the Bar graph view, simply close out of the scope view window. This can be
done by clicking on the X in the upper right hand corner of the window, or by clicking the
“Bar Graph” button in the lower right hand corner of scope view settings section of the
scope view window.
For I2C-related data streaming information, please refer to the IQS213 datasheet for device
memory register descriptions and application note: “AZD066:IQS213 Communication Interface
Guideline”, available at: www.azoteq.com.
For further enquiries regarding the IQS213, please contact your local distributor or submit enquiries
to Azoteq at: [e-mail]
The following patents relate to the device or usage of the device: US 6,249,089 B1, US 6,621,225 B2, US 6,650,066 B2, US
6,952,084 B2, US 6,984,900 B1, US 7,084,526 B2, US 7,084,531 B2, US 7,119,459 B2, US 7,265,494 B2, US 7,291,940 B2, US
7,329,970 B2, US 7,336,037 B2, US 7,443,101 B2, US 7,466,040 B2, US 7,498,749 B2, US 7,528,508 B2, US 7,755,219 B2, US
7,772,781, US 7,781,980 B2, US 7,915,765 B2, EP 1 120 018 B1, EP 1 206 168 B1, EP 1 308 913 B1, EP 1 530 178 B1, ZL 99
8 14357.X, AUS 761094
IQ Switch®, ProxSense®, LightSense™, AirButton® and the logo are trademarks of Azoteq.
The information in this Datasheet is believed to be accurate at the time of publication. Azoteq assumes no liability
arising from the use of the information or the product. The applications mentioned herein are used solely for the
purpose of illustration and Azoteq makes no warranty or representation that such applications will be suitable
without further modification, nor recommends the use of its products for application that may present a risk to
human life due to malfunction or otherwise. Azoteq products are not authorized for use as critical components in life
support devices or systems. No licenses to patents are granted, implicitly or otherwise, under any intellectual
property rights. Azoteq reserves the right to alter its products without prior notification. For the most up-to-date
information, please refer to www.azoteq.com.
WWW.AZOTEQ.COM
[e-mail]