Art and Technology are Friends

USB Blinky!

USB Blinky in action

Every now and then, I feel like designing something really simple and basic. Blinkies are my go to circuit for the simple LED joy. Just ten parts and the two LEDs blink back & forth…
However I always find powering the circuit a bit of pain – if I use battery, I’d have to change the battery all the time. But using an AC adaptor is kind of messy. Then I realize that USB ports are everywhere – on my computer, on the side of my keyboard, phone chargers, etc. Being able to just plug a blinky into any of USB ports around would be fun.

So here it is, USB Blinky. I used thicker PCB material so that the PCB will fit into USB port nicely making the simplest possible USB plug.

USB Blinky schematic

- view detailed technical info and assembly instructions @ instructables

- purchase USB Blinky

5 Responses

  1. Mosen

    great. fell in love with the design.
    I love bare circuits.

    September 20, 2017 at 5:34 am

  2. Cretu Alex

    Can you show me to me a PCB. Can not tell if it has two layers

    September 17, 2013 at 4:15 pm

  3. kaing hongly

    can you tell me name of material making USB Blinky

    December 15, 2012 at 7:00 am

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