×

SparkFun Electronics will be closed in observance of memorial day on Monday, May 29th. We will resume normal business hours on Tuesday, May 30th. Any orders placed after 2pm Mountain Time on Friday, May 26th will process and ship out on Tuesday, May 30th.

dropdad

Member Since: November 11, 2009

Country: United States

  • I have created three control modules for 24 Christmas light circuits (controlling about 10,000 LED lamps) For each module, I made another board that incorporate 8 solid state relays. The Darlington driver easily controls (switches) the solid state relays (bought from Spark a Fun) that I soldered to the female end of outdoor 18 gauge green extension cords. Having learned from the first one, cut the cords so that you have 3-4 feet of lead to work with. I mounted everything into a plastic Thermous brand lunch pail that I sealed th holes for the handles. I s filled a hole in the side of the bottom of the box for the leads to exit and sealed everything. I had to write the program on my MacBook for various lights and program them. If I decide to change something, I just make the changes on my MacBook, then carry it out to the controller and overwrite the existing program in less than a minute. These work Awesome!

  • Can the Darlington driver switch 120v AC to cycle LED Christmas light strings on and off?

No public wish lists :(