With some paper, a 555 timer, a CD4017 decade counter and some LEDs, Ben Jemmett made his very own flashy paper Christmas tree and put all the necessary files and instruction into a GitHub repo. (via)
With some paper, a 555 timer, a CD4017 decade counter and some LEDs, Ben Jemmett made his very own flashy paper Christmas tree and put all the necessary files and instruction into a GitHub repo. (via)