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Presence detection sensor overrides LED lighting controls Harvard Engineering has launched a new device called a SensorNode that enables presence detection for the company’s LeafNut monitoring and control system for outdoor and street lighting. The SensorNode automatically overrides any scheduled dimming profiles on the system, returning the lights to full power for a specified period of time. The device operates via connection with an external presence detection unit. Following recent concerns about turning lights off at night, the SensorNode allows local authorities to save energy through scheduled dimming, and maintain the safety of residents with increased light levels when required. LeafNut has been installed by over 100 local authorities across the world and is helping to save up to £46 per street light per year in energy costs, and up to 100kg of carbon per street light per year. Harvard Engineering www.harvardeng.com Ambient light, color and proximity sensing The ams TMD3782 digital sensor is optimized for use in mobile devices, the 3.9x2.4x1.4mm module combines ambient light, color and proximity sensing. The sensor operates behind dark glass to drive intelligent display adaption for color and brightness. The TMD3782 on-chip filters minimize the effects of ultra-violet and IR light to improve the overall accuracy of light and color sensing. ams www.ams.com magnetoresistive sensor ICs, nanopower series The industry’s first Nanopower Anisotropic Magnetoresistive Sensor ICs provide the highest level of magnetic sensitivity (as low as 7 Gauss typical) while requiring nanopower (360 nA). High sensitivity allows design engineers to reduce system costs, while Nanopower allows for use in battery operated equipment with extremely low power requirements. Solid state, non-contact design provides a reliable, durable alternative to reed switches. High sensitivity. Extremely low power. To learn more about Honeywell’s Nanopower Series, visit sensing.honeywell.com, or e-mail: crc.sensingcontroleurope@honeywell.com. © 2014 Honeywell International Inc. All Rights Reserved. 32 analog inputs and 20-Bit A/D at 1MHz over USB Data Translation’s DT9844 USB data acquisition module comes with 32 analog inputs, a 1 MHz A/D converter and 20-bit A/D resolution. Even at the maximum overall sampling rate of 640 kHz, the new module maintains system accuracy and minimizes noise and crosstalk. In addition to the 32SE or 16DI analog inputs, the new module also features 32 digital I/O channels and five counter/timers. The high accuracy of the new module is achieved by a wide analog bandwidth of the input subsystem, a high-speed multiplexer and a powerful A/D converter. The ±500V tri-sectional galvanic isolation between the analog inputs, the digital I/O channels and the USB interface ensures ultra-accurate measurements. All analog channels can be run simultaneously and synchronously with the digital I/O channels. The digital outputs can also be used for synchronizing external devices. Data Translation www.datatranslation.eu www.electronics-eetimes.com Electronic Engineering Times Europe June 2014 43


EETE JUN 2014
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