Archive for the ‘Projects’ Category.

New Project – Whiteboard Plotter

I’m designing and building a whiteboard plotter as an Arduino demonstration project. I’ll be creating a build log for this project and hope to have a working prototype within a week or so. Stay tuned!

Build a Wee Blinky Using Incandescent Bulbs

You can build the Wee Blinky kit using incandescent bulbs instead of the supplied LEDs.  Just omit D1, D2 (the LEDs) and R1 and R4 (the current-limiting resistors for the LEDs).  Connect one lead of an incandescent bulb to the bottom lead of where the LED was supposed to go, then the other lead to the bottom lead of where the resistor was supposed to go.  Repeat for the other side.

Here is a YouTube video using 12V incandescent bulbs:

It gives a very warm, retro look to the Wee Blinky!  Let me know what you think.

More is better, right? 12 LED Cylon scanner Prototype

While waiting for my 12V Dimmer Kit PCBs to arrive, I spent a little time building yet another Cylon-style LED scanner. This time it has 12 LEDs! That’s more than 5! Quick, someone do the math!
Here’s a short video showing how it’s coming along so far. It’s still on a solderless breadboard at this stage. I’m thinking about a PCB that’s about 4 inches long and maybe one inch across, or perhaps slimmer. It should run on two AA batteries.

Let me know what you think in the comments!