tag:blogger.com,1999:blog-2322291048042453151.post4994451711964313157..comments2022-03-30T19:26:28.939-07:00Comments on Hands On - Arduino: Project 19 - LED dot Matrix Display - Part 2James Floyd Kelly (Jim)http://www.blogger.com/profile/13876934942928389738noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-2322291048042453151.post-64068037347685937172013-07-14T16:37:17.263-07:002013-07-14T16:37:17.263-07:00If anybody is still checking in on this blog and p...If anybody is still checking in on this blog and particularly project 19 I recommend that you go over to the following blog:<br /><br />http://mindovermaterial.wordpress.com/2012/07/17/beginning-arduino-project-19-led-dot-matrix-basic-animation/#comment-33<br /><br />They have fully explained this project and why we were having problems with it. The author re-wrote the project code as well as fixing the books code.<br /><br />slfAnonymoushttps://www.blogger.com/profile/09276994920249280181noreply@blogger.comtag:blogger.com,1999:blog-2322291048042453151.post-86065298219093400242012-10-03T08:31:59.244-07:002012-10-03T08:31:59.244-07:00jjp
Hi,
I am having exactly the same issue with pr...jjp<br />Hi,<br />I am having exactly the same issue with project 19..Project 18 seems to count as yours did but 20 does not appear to work either...Possibly a timerone problem for me..How exactly did you download and install it??? Mine was version 9..Extracted and put into the libraries folder as mentioned in the book..<br />PS i tried the bitshift change but it did not help<br />Thanks for your help..<br />jjpAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-2322291048042453151.post-76945186948469349972012-04-12T20:44:02.763-07:002012-04-12T20:44:02.763-07:00THANK YOU FOR THIS!
This was a life saver. I reso...THANK YOU FOR THIS!<br /><br />This was a life saver. I resorted to moving on, but like any mission left incomplete, it was always on my mind. Thanks again.an iron lion in zionhttps://www.blogger.com/profile/09973520223778845449noreply@blogger.comtag:blogger.com,1999:blog-2322291048042453151.post-90703167262565383792012-01-29T14:10:48.035-08:002012-01-29T14:10:48.035-08:00Actually, you're missing the semicolon :) row ...Actually, you're missing the semicolon :) row = row >> 1; // bitshift right<br /><br />I rewired the thing three times and was pulling my hair out, so thanks very much for this blog and thanks to EJB for finding out the problem. I was a about to give up.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2322291048042453151.post-51731644924080443462011-04-08T16:16:07.074-07:002011-04-08T16:16:07.074-07:00Michael McRoberts was kind enough to respond to my...Michael McRoberts was kind enough to respond to my email. There is an error in the code. <br />row = row << 1 // bitshift left<br /><br />should be<br /><br /><br />row = row >> 1 // bitshift rightAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-2322291048042453151.post-68899171516675537892011-04-08T08:12:39.074-07:002011-04-08T08:12:39.074-07:00I'm having exactly the the same problem and I ...I'm having exactly the the same problem and I get the same results that you have described. Did you try loading the code for project 20 (Scrolling Sprite)?. It seems to work fine, so I think my circuit must be breadboarded correctly and functioning properly. This implies that there is something wrong with the code for project 19. I emailed the author of Beginning Arduino about this. Maybe he'll have a solution.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2322291048042453151.post-26542576472204172382011-04-07T20:41:05.124-07:002011-04-07T20:41:05.124-07:00Well, I just breadboarded the same project and cam...Well, I just breadboarded the same project and came up with the same problem. I just seem to get the entire row number one group of LED lighting up and flashing but nothing else happens. I tried loading the source code for project 18 and came up with exactly the same results as you did. I went ahead and loaded the code for project 20 (Scrolling Sprite) and it works just fine! Very perplexing. So, I suspect there is something wrong with the project 19 code (there are plenty of other typo errors in my book so wouldn't be surprising if something is off in Mr. McRoberts text for this project. Unfortunately the code is just too complex for me to debug (I'm just a newbie). Your video is a great example of the problem so I'll try emailing the link to Michael McRoberts at sales@earthshineelectronics.com and see if he responds. I should just stop obsessing on this and move on!Anonymousnoreply@blogger.com