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Posts Tagged ‘xmas’

Xmas tree with sound-controlled LED animations

Thursday, December 20th, 2012

[embed]https://www.youtube.com/watch?v=YJibWKGt78E[/embed] Sound controlled LED light show for your Xmas tree.  An STM32 microcontroller takes instructions from a PC via Bluetooth and animates the LEDs. This is my Christmas tree, it has over 400 lights (exactly 404) that are all individually controlled by an STM32 microcontroller. The computer plays the music...

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Posted in ARM, Holiday | No Comments »

Jingle bells playing Christmas tree

Thursday, December 20th, 2012

[embed]http://www.youtube.com/watch?feature=player_embedded&v=cH0xqlzUgd0[/embed] Here's a fun project in the Christmas spirit. It's a "Jingle bells" playing card, with the specific notes being signaled via LEDs as they are being played. We have 9 control lines for the LEDs and 1 line for the speaker signal. We want the device to start playing...

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Posted in Holiday | No Comments »

Christmas LED card built and shared

Wednesday, December 28th, 2011

Drew picked up our old blinking Xmas card project. He got the PCBs just in time to complete the project before Xmas. I finally assembled a couple and am off to give them to my parents and grandparents at Christmas Eve We're glad our project brought some joy during the...

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Posted in DIY | 1 Comment »

Itead mystery gift arrives

Sunday, December 11th, 2011

Several weeks ago we posted about an X-Mas giveaway from Iteadstudio. We were surprised to see that it arrived during our stay in Tokyo! As it was shipped like a regular letter, we suspect it blasted past bigger parcels and slipped through quite easily. If you're still waiting for it, and...

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Posted in Free PCBs | 16 Comments »

7400 competition entry: Animated LED Christmas sign

Tuesday, October 11th, 2011

Raj entered his Animated LED Christmas sign into the Open 7400 Logic Competition. Having already build a PIC controlled version, he wanted to try and control the sign using discrete logic only. The individual letters are build from red LEDs and run of a 32V power supply. Check out the...

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Posted in 7400 contest | 3 Comments »

Recent Comments

  • Alan: Reminds me of "bug zappers" shaped like tennis racquet. Outer mesh is ground for human contact, inner mesh has high voltage. They typically run from...
  • KH: He had qualms about electrolytic cap leakage impacting sleep current. I think such leakage is very low and hard to measure using hobby equipment, so...
  • Mike: Love these! great source for makers!
  • KH: Is my eyes playing tricks on me or did he just use gobs and gobs of solder on the top side?
  • Doug: When do we find out the winner??