PCB a Week 15: Twittorama

Posted on Tuesday, July 9th, 2013 in project logs by DP


Mats continues his challenge of designing one PCB every week.  In week 15 he came up with 14 segment display- Twittorama:

Displaying tweets isn’t anything new, but most I’ve seen have a small display and scrolls the tweets. I want the full 140 characters to be visible simultaneously. So I put 10 of the displays (20 characters) on a pcb with a heap of shift registers, resistor arrays and some n-fets.

Then I just daisychain 7 of the modules to get up to the 140 characters. Adding one more unit, placed on top of the 7, will give space to display the name of the sender as well.

This entry was posted on Tuesday, July 9th, 2013 at 9:00 pm and is filed under project logs. 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.

2 Responses to “PCB a Week 15: Twittorama”

  1. robert says:

    Definitely must see photos and a video of the thing when it goes live.

  2. Drone says:

    What is Twitter?

Leave a Reply

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

Recent Comments

  • Nathan Johnson: 100 channels. Not many are legal in any given area. Be sure to comply with local laws.
  • William Brodie-Tyrrell: It's getting to the point where it's cheaper and definitely easier to use a Pi Zero or similar and a $20 3G USB dongle. Power...
  • KH: IIRC most of the actual operating system of modern HDDs is in one of the platter(s); the stuff on the 25VF010 is a bootup firmware......
  • Trev: I don't know of any inexpensive 3G modules (prices start around $US 50), but it does explain why 2G modules are relatively inexpensive by comparison....
  • Zonie: This site Rocks!