Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Hi guys,
I'm confused about how much volts my project needs to light 1470 LED with 470 ohms resistor each. I am using 7447 and 74192 to drive LED and 7410 NAND gate for switch debounce. If I used 20 volts as power supply, will it not be a problem with the ICs? I'm afraid it will make the ICs...
Hi Guys,
I already did and successfully completed this project of mine and ready for market now. It's really releaving and feeling success for this achievement. But I can't do all of this without your help.
Thank you for all the help you extended in doing this project especially...
hi guys,
For your reference please see attached file.
- - - Updated - - -
Hi jayanth,
I am very greatful for your help and it would be appreciated if you will still help me on this.
With your comment in the 2 switches, it wont get low since I used a common anode LED in it. The 2...
Hi Reginald,
Those button have different function. The one that is connected to P3.0 is for increment whereas P3.1 is for decrement. AT89c2051 microcontroller controls the counting of numbers and send it to 7447. It has program inside that do the counting.
Hi guys,
I'm doing a simple scoreboard wherein the user is allowed to increment or decrement the scores. The board should be three digit seven segment LED. I'm having trouble in cascading the data. Please see attached image for reference
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
