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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

** Update ** the kit has been released!

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.