blinking things

I've tested and verified my design and put it on tindie btw. :)

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https://www.tindie.com/products/davedarko/starblinken-diy-kit/

I hand wired a combo of NE555, CD4017 and two ULN2003 chips. I also spray painted the protoboard before that. The capacitor I chose is a bit too small, so the animation is a bit too fast. I'll need to grab a 2uF instead of a 1uF cap. Definitely need to add a 100nF cap for the 555 and maybe some more all around. 

here's a link to it working: 

https://www.instagram.com/p/BliYSjGDVXg/?taken-by=davedarkocom

finally came back to this :)

http://www.ebay.de/itm/172664995172

I've ordered some of CNLohr's RGBY LEDs for my WeMos shield, will update this once they arrive :)

Board works :)

I recently bought a cool 11x7 matrix, that is just great to display 4 3x5 digits and I want to control it with the well supported HT16K33 - so here's a not so beautiful and highly convoluted board for that.

Definitely mooooaaar white :)

So I thought I've bought the new SK6812 with RGBNW on aliexpress.com, but instead I received some standard RGB WS2812 LEDs - not cool :( but the shield works. Now I've bought half of the LEDs for the same price on eBay, let's see how that will turn out ;) dispute on aliexpress was opened, hoping for at least some refund.

Wemos 2812B moaaaar LEDs shield

After seeing RGBW LEDs on the Adafruit stream I quickly went on Aliexpress to buy some and then designed a Wemos D1 shield for them, just not with only one LED.

SMD LED bargraph for breadboards (with Resistors)

A classic, but I was in the mood to design it.

RGB LEDs charlie-plexed pinout

This is basically the layout of one column of a 4x4x4 RGB LED cube...