Elmos: Proximity & gesture recognition for precise interaction with the Display GUI

Elmos introduces the ICs E909.21 (controller) and E909.22 (conditioner), a solution for optical proximity and gesture recognition in the vehicle. The controller and conditioner are designed for use in larger automotive displays. The combination gives the user a perfectly coordinated solution for precise interaction with the graphic user interface (GUI).

The following actions can be detected: Proximity, Swipe, Air Slider ™, Magnification, and more. The object recognition and motion evaluation act in real time on the basis of a simple infrared technology. A new product flyer gives information about the possible uses and technical details (here:https://www.elmos.com/fileadmin/2013/06_publications/elmos-optical-ir-sensors_halios.pdf).

Elmos is a pioneer in gesture recognition in the vehicle and the No. 1 in the world for this application. One reason for this is the best ambient light immunity available on the market and automatic system calibration. In addition, many features have been integrated to simplify system design and sensor design, making the devices a plug-and-play solution tailored to the application. The E909.21 is used by well-known OEMs in various vehicle models in series.

The basis for the ICs is the established HALIOS® principle. It is the only method that works with true optical compensation. This allows almost complete neutralization of parasitic physical effects from the receiver, ranging from the ambient light effect to very good temperature stability, far beyond the capabilities of the individual components.

The E909.21 or E909.22 module has 2 receiver and 4 LED transmission channels as well as a special HALIOS® compensation path. For each transmit channel, 100mA current drivers are integrated on the IC. The HALIOS® switching frequency can be set to 1MHz to eliminate interference with other optical systems. The integrated 16bit Harvard Architecture CPU can be variably clocked at 4, 8, 12 or 24MHz. In addition, 32kByte Flash, 4kByte SRAM and 8kByte SysROM are integrated into the IC. The temperature range is from -40°C to +85°C. The E909.21 comes in the QFN32L5 package. The E909.22 in a QFN20L4 package.

On request, the device is also available with an integrated bootloader, which allows the device to be programmed via one of its two serial interfaces (I²C / SPI). In addition, the developer is supported by firmware demo code when creating the initialization and calibration routines. Numerous application notes and a gesture library complete the development environment.

For more information, evaluation kit and samples please write an email to sales@elmos.com with the subject line 'E909.21 / .22', visit our website www.elmos.com or contact us by phone: + 49 231 7549 100.

About Elmos Semiconductor AG
Elmos develops, produces and markets semiconductors and sensors, primarily for use in the automotive industry. Our components communicate, measure, regulate and control safety, comfort, powertrain and network functions. For over 30 years, Elmos innovations have been bringing new functions to life and making mobility worldwide safer, more comfortable and more energy efficient.