The ADUX1020 from ADI is an optical sensor for gesture recognition that measures a subject’s position, proximity, and gestures from a single sensor. Existing solutions that require multiple sensors are often inaccurate, as the sensors “see” objects differently from varying angles, making the signals difficult to combine. The single-point sensing used in the ADUX1020 improves reliability of the application and, by requiring fewer components, reduces design complexity and cost for the system developer. Gesture recognition is an emerging user interface method in building and industrial control panels, where a user interacts with a device simply by motioning or gesturing. It is especially important in situations where touch-screen interfaces are challenged, such as in wet conditions, when a user is wearing gloves, or when a control panel is difficult to reach.
In addition to single-point sensing, the ADUX1020 features high ambient light rejection, which allows reliable and accurate operation under challenging lighting conditions. This, too, results in a more reliable application end user experience. Other optical sensors are often challenged by ambient light from sources like full sun, high-frequency LED, and fluorescents, all of which can disrupt the sensor’s ability to interpret gestures accurately.
Other key features include multifunction photometric sensor and signal conditioning; fully integrated AFE, ADC, LED driver, and timing core; on-chip programmable flexible current sink for external LED; high sensitivity and signal-to-noise ratio; and high resolution position measurement. Available now for $3.49/1,000.
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