I have a 2) 0.8" 7-segment Led displays and 2) black jumbo pushbutton switches I want to have a score board so that when i push the button the display will say one and when i push it again it will say 2 and so on and so on till 9 then when i push it again it will saw 0 but that is all i have and i know i need other stuff to make this work and i wanna be able to use 120 volt power so i know i need to have a power converter but what size?? is there some web site that i can go to that will help me make what i wanna make?? please ask questions and i will try to answear them to the best of my knowledge.
Led Display
Mar 22, 2005
6 Replies
I'll help you.
Are they common-anode or common-cathode displays, and what kind of
switches are they? (SPST, SPDT, DPDT, ???)
A common linear regulator will be able to provide more than enough current to run your counters. I would use a plug pack that converts the 120VAC to something in the 7 to 12 volt range. AC output is fine since this means the plug pack is only a transformer. You will need four rectifiers and a couple of capacitors in addition to the LM7805 regulator. A heat sink to mount the regulator on will also be needed as it will tend to get hot.
You can scavenge most of these items from a broken computer power supply. The goal here is to build a 5 volt power supply to run the counters.
Do you have soldering equipment and a multimeter?
The specs for the led display i have are on this page
formatting link
and yeah i have a multimeter and i have good soder guns and everything but all i need is to learn how to make a led display that counts can somone please make a list of what i all need so i can just print it out and get everything i need then i can get the steps on how to build it after but any other questions or??
Probably not the whole thing, for free. It's a whole construction project, and for a beginner, a major one.
Your best course of action would be to surf the web for electronics tutorials, construction articles, and whatever you can find, and also go to the public library and see what they have about electronics. The ARRL Handbook and The Art of Electronics are a couple of good books for this.
Good Luck! Rich
As someone who is good at following directions but limited in electronics knowledge (not just electronics) I have found using googling for "circuits" brings up many sites with links to many other sites that have all sorts schematics that a beginner can follow. And counter circuits were for sure in there. In fact the following link may work for you. Read about it. The guy who put up the web site is a nice guy. Anyway, here it is:
formatting link
ERS
Go to alt.binaries.schematics.electronic and look for "Pushbutton
counter and display, try 2".
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required