It normally takes two transistors to build a blinker circuit (in order to make positive feedback possible). However, you can also use a photo-resistor (LDR) that is illuminated by an LED. The feedback ...
Smoke detectors are generally used in advanced alarm systems. Most of this professional devices use gas-detectors, ionization rooms or radioactive elements as sensors. In this circuit we are not using ...
MANITOWOC, Wis.--(BUSINESS WIRE)--Orion Energy Systems, Inc. (NYSE MKT: OESX), April 30, 2015 - a leading designer and manufacturer of high-performance, energy-efficient lighting platforms, today ...
Installation of Harris LDR LED Troffer Retrofit lighting fixtures and advanced control systems to result in significant annual energy savings. MANITOWOC, Wisc., Oct. 06, 2021 (GLOBE NEWSWIRE) -- Orion ...
A recent article in Microsystems & Nanoengineering introduces a low-cost method for optical sensing in microfluidic systems. The researchers used light-dependent resistors (LDRs) as optical detectors ...