Many portable appliances and other products that must operate from a single cell are restricted to working at very low voltages. It is thus difficult to drive white LEDs that typically have a forward ...

The circuit in Figure 1 allows you to light any type of LED from a single cell whose voltage ranges from 1 to 1.5V. This range accommodates alkaline, carbon-zinc, NiCd, or NiMH single cells. The ...

LED bulbs are known for longevity, but how you use them plays a larger role than many realize, and small details can quietly ...

Here’s another Trinket Contest entry that was interesting enough for its own feature. [Adam] made his own Hackaday version of the Bat signal. It’s not nearly as big, but the concept is the same. Using ...

Why might you want to produce a single photon? Individual photons would be very useful for the development of quantum control, computing, and communication. Unfortunately, making one photon at a time ...

SANTA CLARA, Calif.--(BUSINESS WIRE)--OmniVision Technologies, Inc., a leading developer of advanced digital imaging solutions, today announced the OVMed® OCHSA and OCHTA cable modules for single-use ...

When the chance arrived to buy a mechanical keyboard for not a lot, naturally, [Hales] jumped at it. Then it started having odd intermittent problems with some keys appearing stuck, which led to a ...

Led Zeppelin will reissue the Japanese version of the “Immigrant Song” single to mark the 50th anniversary of Led Zeppelin III. The single will arrive on January 15th, 2021, but will be available to ...