Learn how to use LED circuits in your STEM projects with these four creative ideas. Make LED greeting cards, wearables, sensors, or games with simple materials and tools.

PIR LED Security Light Circuit Schematic Notes The PIR sensor requires an initial stabilization time of about 10 to 60 seconds in order to function properly. During this time, the sensor gets familiar ...

Here’s your useful and beautiful circuit for the day — [New Pew]’s vibration sensor takes manual control of the flip-flop inside a 555 timer and lights an LED in response. Use it … ...

The LED is to be used as a light transmitter (source) within the sensor system design. This idea and architecture for the mixed-signal electronic circuit design is considered for both a discrete ...

A GaN blue light emitting diode (LED) and Si photodiodes (PDs) are integrated monolithically on Si substrate for a micro optical displacement encoder sensor. A GaN-LED crystal layer was grown ...

Inspired by printed circuit boards, the building block of all electronics, a Dutch designer has created an LED-based light installation that draws upon the familiar etching pattern inside most ...