We’ve posted a lot of 555 timer chip projects for blinking LEDs, but I really like this one, it’s like a LED player piano…Ten Men writes – “I scribbled the can with a rubber dremel wheel to remove the paint where I wanted the contacts to close the circuit, lighting the LED’s. The contacts are connected to the terminal block, and the LAN cables are connected to the other side. I jumpered the negative connection to every other block, with the positives coming in the gaps.” [via] – Link.


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Enter the MAKE & CRAFT Contests!

  • Makers and Crafters, it’s time to enter our ghoulishly fun Halloween contests! Anyone, anywhere can enter, and depending on what type of maker or crafter you are, you can enter all or just some of the contests – Link.