Buy stuff

Categories

7400 competition entry: Animated LED Christmas sign

Posted on Tuesday, October 11th, 2011 in 7400 contest by DP

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 video of this project below.

Via the contact form.

This entry was posted on Tuesday, October 11th, 2011 at 12:00 pm and is filed under 7400 contest. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

3 Responses to “7400 competition entry: Animated LED Christmas sign”

  1. Shashank Patil says:
    October 15, 2011 at 7:09 pm

    n1

    Reply
  2. irfan says:
    January 7, 2012 at 3:50 pm

    strike so butful

    Reply
  3. frank says:
    June 5, 2014 at 12:46 pm

    Please can u send me the circuit diagram [ agbotafrank@yahoo.com]

    Reply

Leave a Reply

Notify me of followup comments via e-mail. You can also subscribe without commenting.

Recent Comments

  • Doub: Just add sleeving and black variants of these 5557 and you'll take the enthusiast/gamer PC market by storm.
  • James Fowkes: This is a brilliant service, I'm sure I'll be using it a lot. An option for spade/FASTON connectors would be amazing!
  • Peter: Another sunday, another chance...
  • Louis Beaudoin: This is great work guys! Placing an order for a sample pack and hope to use the service to make a custom cable soon.
  • Parkview: Another great idea! Be handy to be able to purchase the corresponding SMD and TH sockets as well.