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 ...
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 ...
MANITOWOC, Wis.--(BUSINESS WIRE)--Orion Energy Systems (NYSE MKT: OESX) is ringing in the New Year with the launch of the industry’s first complete suite of LED Door Retrofit (LDR) products. The LDR ...
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