At first glance, these might appear to be normal 5 mm (“T-1 3/4”) clear lens ultrabright yellow LEDs. However, they’re actually “candle flicker” LEDs– self-flickering LEDs with a built-in flicker circuit that emulates the seemingly-random behavior of a candle flame.
In the close-up photo above, you can actually make out the glowing LED die on the left side, and a corresponding-but-not-glowing block on the right: the flicker circuit itself. In what follows, we’ll take a much closer look, and even use that little flicker chip to drive larger circuitry.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — Alibaba to invest $15b in tech, set up research labs around the world
Wearables — Hand beading mimicry
Electronics — Trigger happy oscilloscope?
Biohacking — Biohacking: Visioneer – AI Glasses to Assist the Visually Impaired
No comments yet.
Sorry, the comment form is closed at this time.