Let’s say you want to blink an LED. You might grab an Arduino and run the Blink sketch, or you might lace up a few components to a 555. But you needn’t go so fancy! [The Design ...
While most agree that LEDs will someday replace compact fluorescents as the energy-efficient lights of choice for homes and businesses, that day often seems far off. LEDs, which emit light from a ...
OK form reading this forum we are trying to make use of an led running at 110 volts vac <BR><BR> <BR>hot 110 vac-->20kohm@1/3watt>>>--cathode led<BR><BR>neutral ...
Ever wonder how they capture seemingly perfectly timed photographs of water droplets? Most of the time it’s done by using an optointerrupter whereby it detects the droplet falling and then triggers a ...
LEDs in portable devices often show power status, battery status, or Bluetooth-connection activity. LEDs can be major factors in determining battery life because their intensity is directly ...
A new kind of LED keeps its efficiency when in a hot recessed lamp. LEDs are typically tested for efficiency at 25°C. But the resulting data isn't of much use for designing applications like down ...
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