AT42QT2120-XUR

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The AT42QT2120-XUR is a capacitive touch sensor integrated circuit developed by Atmel Corporation. It is used in a variety of applications, but is particularly well suited for projects requiring human machine interfaces (HMIs). This IC is an upgrade over traditional KNOBS, push buttons, and switches.The IC is embedded in a series of small PCBs which house the internal sensors. These include an array of integrated capacitors which are able to detect changes in capacitance between two metallic objects. This capacitive sensing technology is used to detect when a user touches the IC, or when an object is placed next to it.The AT42QT2120-XUR is a very versatile device, as it can be used to detect a single finger, multiple fingers, and even objects such as coins or cards. It can be configured to handle various touch events such as single taps, double taps, long presses, and even swiping actions. The device is designed to be user friendly and is easy to integrate with other components.The AT42QT2120-XUR is built with an ultra-low power resistive bridge driver which uses an internal oscillator and an I²C interface to communicate with the external system. It is compliant with the Atmel QTouch library, and can be used with almost any arm Cortex-M0+ or Cortex-M3 microcontroller.The AT42QT2120-XUR is highly reliable and has a long life span. It is also highly resistant to shock and vibration, making it a good fit for rough environments. The device is also suitable for both industrial and consumer applications. Its compact design enables it to be corrosion and impact resistant, making it a great choice for long-term, reliable operation.The device is suitable for a wide range of applications, including consumer electronics, automotive, industrial controls and robotics. It is perfect for applications that require cost effective and durable touch control, such as game controllers, consumer electronic devices, remote controls and industrial machinery.To sum up, the AT42QT2120-XUR has a lot of advantages as a capacitive touch sensor IC. It is easy to integrate, reliable, robust, power efficient and cost effective. Its broad range of applications make it a great choice for any project requiring an HMI solution.

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