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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!

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12V Dimmer V2 coming soon!

12V Dimmer Kit V2 prototype with terminal labels
12V Dimmer Kit V2 prototype with terminal labels

Here is an actual photograph of an actual prototype of the long-awaited updated version of my ever-popular “12 Volt Dimmer”.  It’s an especially efficient PWM controller for 12VDC loads up to 60W.  The previous version was only rated at 25W, so this is a big improvement in capacity.  Also, I’ve added an extra pushbutton to allow cycling through preset power levels, which are currently 1%, 10%, 25%, 50% and 100% and back to off again.

The 12V Dimmer kit will be available in two to three weeks (*crosses fingers for luck*) for only $14.95.  The production version will be much more attractive than this prototype, with a real soldermask and silkscreen.

Since the power terminals are unlabeled on this prototype, I’ve included this photograph to illustrate the proper connections for both power and load.

You can control a *LOT* of LEDs with this kit, as well as motors and fans as a speed controller.  There are actually a lot of applications for a simple circuit such as this.

All the design files, including the schematic and microcontroller source code will be released when the kits are ready to ship.  I have several units in the field being evaluated by my trusty beta testers.  Hopefully there will not be any big surprises between now and the launch date.