Comments on: Seven segment display explained http://www.youritronics.com/seven-segment-display-explained/ DIY, Electronics, IT, Gadgets Sat, 28 Jan 2012 20:46:04 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Laci http://www.youritronics.com/seven-segment-display-explained/comment-page-1/#comment-39607 Laci Sat, 25 Jun 2011 13:06:44 +0000 http://www.youritronics.com/?p=2254#comment-39607 Hi Mathew, First try to display the 8 character, since that uses all of the segments, but my hint is that the problem comes from the multiplexing, the problematic digit stays on for a very short time, while the other stays on considerably more, off course could be some hardware issue too, like pcb/schematic error. A good way to search for the root cause, override the multiplexing routine, just select the first digit and display some character(recompile the software, re-flash and test), do this for the second digit too, this will show you if you have some connection problem or software bug(my vote is on the multiplexing bug :) ) Hi Mathew,

First try to display the 8 character, since that uses all of the segments, but my hint is that the problem comes from the multiplexing, the problematic digit stays on for a very short time, while the other stays on considerably more, off course could be some hardware issue too, like pcb/schematic error.

A good way to search for the root cause, override the multiplexing routine, just select the first digit and display some character(recompile the software, re-flash and test), do this for the second digit too, this will show you if you have some connection problem or software bug(my vote is on the multiplexing bug :) )

]]> By: Mathew http://www.youritronics.com/seven-segment-display-explained/comment-page-1/#comment-39587 Mathew Sat, 25 Jun 2011 03:13:18 +0000 http://www.youritronics.com/?p=2254#comment-39587 Why would one segment of a 2 digit-7 segment display not function when both "a" should be on at the same time. It is digit 1 on the right of the two. I've tried 3 led displays. So it's not the displays and I've checked all of my connections. The processor functions normally also. Just the one segment. Arrghh. Please, any help. Thx Mathew Why would one segment of a 2 digit-7 segment display not function when both “a” should be on at the same time. It is digit 1 on the right of the two. I’ve tried 3 led displays. So it’s not the displays and I’ve checked all of my connections. The processor functions normally also. Just the one segment. Arrghh. Please, any help. Thx Mathew

]]> By: Barney Telford http://www.youritronics.com/seven-segment-display-explained/comment-page-1/#comment-30761 Barney Telford Wed, 27 Apr 2011 16:34:47 +0000 http://www.youritronics.com/?p=2254#comment-30761 hi and appreciate the information you have - I have surely picked up interesting things from your site. I nevertheless ran into a few on site issues using this website. I have been wondering whether your website hosting is fine? Not that I am filing a complaint, but poor loading times might very likely influence your position in the search engines and might harm your high-quality content on this site. Well I'm putting this Rss feed to my personal email and will look forward to much more of your fascinating content.. hi and appreciate the information you have – I have surely picked up interesting things from your site. I nevertheless ran into a few on site issues using this website. I have been wondering whether your website hosting is fine? Not that I am filing a complaint, but poor loading times might very likely influence your position in the search engines and might harm your high-quality content on this site. Well I’m putting this Rss feed to my personal email and will look forward to much more of your fascinating content..

]]> By: wp http://www.youritronics.com/seven-segment-display-explained/comment-page-1/#comment-11904 wp Wed, 02 Jun 2010 11:32:50 +0000 http://www.youritronics.com/?p=2254#comment-11904 Thank u!..i was searching for this long time Thank u!..i was searching for this long time

]]> By: Laci http://www.youritronics.com/seven-segment-display-explained/comment-page-1/#comment-7065 Laci Wed, 26 Aug 2009 20:22:06 +0000 http://www.youritronics.com/?p=2254#comment-7065 Yep, for 4 digits that is the cheapest solution, above 8 digits you should consider alpha numeric LCD's 15-20$. I strongly suggest that you use some timer interrupt for the multiplexing(like I did in the demo), you should try to port the C code to Basic, that would be the easiest way, since the code is really straight forward and commented. Yep, for 4 digits that is the cheapest solution, above 8 digits you should consider alpha numeric LCD’s 15-20$.
I strongly suggest that you use some timer interrupt for the multiplexing(like I did in the demo), you should try to port the C code to Basic, that would be the easiest way, since the code is really straight forward and commented.

]]> By: Walter Flores http://www.youritronics.com/seven-segment-display-explained/comment-page-1/#comment-7063 Walter Flores Wed, 26 Aug 2009 18:28:53 +0000 http://www.youritronics.com/?p=2254#comment-7063 Hi there, my name is walter and i'm working on a project that will measure the distance of an object up to 35 feet, and i was currently using a serial 7 segment display, but i would like to use 4 7 segments instad, i find it way cheaper than the serial 7 segment displays which run for about 30 - 60 dfollars, the language i'm using is Bascom 8051 but i'm having a little bit of trouble trying to multiplex the data into the segments, i was wondering if you could help me with this i understand exactly what i need to do the problem is that i don't know how to do it and i'm not really familiar with C language, i understand that in order to display the digits i must do it one digit at a time but in a fast enough manner so that the eyes won't see any flickering that's where my problem is, i don't know how to start, please help, Thanks. Hi there, my name is walter and i’m working on a project that will measure the distance of an object up to 35 feet, and i was currently using a serial 7 segment display, but i would like to use 4 7 segments instad, i find it way cheaper than the serial 7 segment displays which run for about 30 – 60 dfollars, the language i’m using is Bascom 8051 but i’m having a little bit of trouble trying to multiplex the data into the segments, i was wondering if you could help me with this i understand exactly what i need to do the problem is that i don’t know how to do it and i’m not really familiar with C language, i understand that in order to display the digits i must do it one digit at a time but in a fast enough manner so that the eyes won’t see any flickering that’s where my problem is, i don’t know how to start, please help,
Thanks.

]]> By: Florin http://www.youritronics.com/seven-segment-display-explained/comment-page-1/#comment-7034 Florin Sun, 23 Aug 2009 18:24:41 +0000 http://www.youritronics.com/?p=2254#comment-7034 Yup, I know what you mean now. It's an issue with the social plugin for wordpress, cause that's behind the bookmarking buttons. I'll have to wait for an update to fix it. Until then you'll have to copy and paste the URL :) Thanks for letting me know. Yup, I know what you mean now. It’s an issue with the social plugin for wordpress, cause that’s behind the bookmarking buttons. I’ll have to wait for an update to fix it.

Until then you’ll have to copy and paste the URL :)
Thanks for letting me know.

]]> By: Silly(c)One http://www.youritronics.com/seven-segment-display-explained/comment-page-1/#comment-7032 Silly(c)One Sun, 23 Aug 2009 12:07:04 +0000 http://www.youritronics.com/?p=2254#comment-7032 It's probably a Wordpress config mistake or something minor, I had no will to pollute your excellent tutorials ;) It’s probably a WordPress config mistake or something minor, I had no will to pollute your excellent tutorials ;)

]]> By: Silly(c)One http://www.youritronics.com/seven-segment-display-explained/comment-page-1/#comment-7031 Silly(c)One Sun, 23 Aug 2009 12:05:15 +0000 http://www.youritronics.com/?p=2254#comment-7031 The Google button below this sentence "Do you like this article ? Bookmark it on:" does not work because the URL is html encoded : & are expanded to & amp ; so they don't work anymore. The Google button below this sentence “Do you like this article ? Bookmark it on:” does not work because the URL is html encoded : & are expanded to & amp ; so they don’t work anymore.

]]> By: Florin http://www.youritronics.com/seven-segment-display-explained/comment-page-1/#comment-7030 Florin Sun, 23 Aug 2009 11:23:48 +0000 http://www.youritronics.com/?p=2254#comment-7030 what URL's are you referring to ? what URL’s are you referring to ?

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