AT42QT1245-AUR

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The AT42QT1245-AUR is a highly reliable capacitive touch-sensing device enabling users to detect human finger presses and identifies in an ultra-small form factor. This device enables users to identify both users’ hand gestures, as well as presence, making it ideal for a wide range of applications. This article provides an overview of the AT42QT1245-AUR application field and its working principle.

Features of AT42QT1245-AUR

The AT42QT1245-AUR is an ultra-small capacitive touch sensor that can accurately detect human touch inputs and quickly assess touchless gesture identifiers. It includes on-chip feature detection algorithms and embedded self-calibrating configurations, allowing for fast and reliable identification for human finger presses and touchless gestures. The features of this device are listed below.

• Ultra-small, 0.19mm2 form factor (2 by 2.5mm)
• On-chip feature detection algorithms and embedded then self-calibrating configurations
• High-precision hand-detection and gesture-detection capabilities
• Low power consumption of 25mW
• Enhanced immunity to noise
• Both touch and gesture detection integrated

Applications of AT42QT1245-AUR

The compact form factor, accuracy and versatility of the AT42QT1245-AUR has made it ideally suited for a wide variety of touch and gesture detection type applications. For example, this device can be used in interactive devices, such as electronic kitchen appliances, smart gaming pods, digital audio/video systems, medical appliances and car entertainment systems. The device can also be used in consumer experience applications such as interactive displays, kiosks and vending machines, and in industrial automation applications, like control panels and robotics.

Exploring the Working Principle of AT42QT1245-AUR

The AT42QT1245-AUR is able to detect both finger presses and touchless gesture identifiers. It uses self-capacitance sensing and advanced host-processing software to accurately detect the characteristics of a user’s finger press and detect sophisticated patterns in touchless gestures.

When a finger is pressed on the device, the dielectric material that is used to create the sensor on the device surface affects the capacitance of the area below it. This detection of capacitance change is used to trigger a detection event, registering the press. The amount of capacitance change depends on the size, shape and pressure of the object on the touch surface. The device is sensitive enough to detect even the smallest finger press.

The device also employs an advanced host-processing algorithm. This algorithm uses an array of digital-crosspoint capacitance sensors and compares the capacitance values measured between each crosspoint of the sensor array. These comparisons are then used to detect the finer details of the finger press and also to assess complex touchless gestures.

In addition, the AT42QT1245-AUR provides enhanced immunity to noise and is able to detected interferences and diverge them from the true finger press. This ensures that the device is able to detect more accurate finger presses and gestures.

Conclusion

The AT42QT1245-AUR is a highly reliable capacitive touch-sensing device that offers ultra-small form factor and on-chip feature detection algorithms and embedded self-calibrating configurations. This device can quickly and accurately detect human finger presses and touchless gestures and is therefore ideally suited for a wide variety of touch and gesture detection type applications.

The specific data is subject to PDF, and the above content is for reference