October 8th, 2007 7 segment big LED display
Coolcircuit presents us a project, based on the PIC16F876A microcontroller. It uses 14 5mm super bright LED’s on each segment. The result is a 6 inch high 7 segment digit display. The circuit can be cascade-connected to form up to an 8-digit display. You can use it as big 7-segment display, big digital clock, digital timer etc.
For full specs and details go to Coolcircuit’s web page.
April 25th, 2008 at 8:29 pm
I wonder how much power it requires?
April 25th, 2008 at 8:36 pm
you can calculate that based on the number of LED that stay on most of the time and their current. But i think this kind of display its best to be used with a transformer powered from 230V, this way you can supply the power needed.
August 27th, 2008 at 11:20 am
I have 2 questions.
1. Does circuit remember data after power loss;
2. Is there schematic of some kind of control board over PC817 input?
Thanks
August 27th, 2008 at 11:22 am
Dejan, follow the link the the projects page http://www.coolcircuit.com/project/big_7segment/index.html
October 17th, 2008 at 12:29 am
Where can the pcb file be obtained?..In a gerber format
October 17th, 2008 at 11:42 am
Steve, the author doesn’t provide Gerber files, only schematic, You’re gonna have to design the circuit yourself in one of the many design software out there and generate the gerber files yourself.
October 17th, 2008 at 2:34 pm
Thanks for your reply..I am only a hobbyist and have no idea on how to create Gerber files..
So if anyone has done this i would be happy to pay for the file because i wanted to built a score board and timer for my sons junior soccer.. club..
October 17th, 2008 at 4:22 pm
Steve do you have an email where i can contact you ? the one you used to post the comment is not working.
October 17th, 2008 at 11:49 pm
email moderated
October 18th, 2008 at 8:32 am
Ok Steve but i tried contacting you on that email yesterday and it wasn’t working. I’ll try again now..
October 18th, 2008 at 9:04 am
nope not working :
:
Sorry, I couldn’t find any host named xrayxhips.com. (#5.1.2)
October 18th, 2008 at 9:38 am
it is xraychips.com sorry my mistake
October 19th, 2008 at 9:35 am
Okay, got it now