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.