tag:blogger.com,1999:blog-6615160292280278140.post157982454187765377..comments2023-04-29T09:23:10.999-04:00Comments on Hands On - Make: Electronics: Chapter 4 - Exercise 18 DebuggingJames Floyd Kelly (Jim)http://www.blogger.com/profile/13876934942928389738noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-6615160292280278140.post-54683409139886910542010-02-18T22:56:42.139-05:002010-02-18T22:56:42.139-05:00The nice thing is, you'll never forget it now....The nice thing is, you'll never forget it now. I had a chip the wrong way around in a breadboard once. I had left it in so long, that when I went to pull it out, it had gotten so hot that I burnt my finger.<br /><br />Lesson learnt and it's now the 1st thing I check every single time :)<br /><br />I'll echo trader.name, red:+ve, black:-ve and any other colours for everything elseDamien Keehttps://www.blogger.com/profile/05396900452353669763noreply@blogger.comtag:blogger.com,1999:blog-6615160292280278140.post-56128602487372996302010-02-18T17:29:13.268-05:002010-02-18T17:29:13.268-05:00I'd also suggest always wiring with 3 wire col...I'd also suggest always wiring with 3 wire colors:<br /><br />Red == Always Vcc -> Circuit<br />Black == Always Circuit -> Ground<br />Green == connections within the circuit that are between components, but not directly to Vcc or Ground.<br /><br />This sort of convention, even though it can be a hassle to cut wires to the right lengths when you need them, will also go a long ways towards preventing fried LEDs, capacitors, etc.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6615160292280278140.post-38347988746237768152010-02-18T15:30:03.250-05:002010-02-18T15:30:03.250-05:00AHHHHH! Charles! I'm running up now to test ...AHHHHH! Charles! I'm running up now to test that! I cannot BELIEVE I made that kind of serious goof! ARGH ARGH ARGH!James Floyd Kelly (Jim)https://www.blogger.com/profile/13876934942928389738noreply@blogger.comtag:blogger.com,1999:blog-6615160292280278140.post-45239744780178794512010-02-18T15:09:49.289-05:002010-02-18T15:09:49.289-05:00If there is a second edition of the book, I may in...If there is a second edition of the book, I may include an advisory specifically warning people not to buy breadboards where the power buses have a break midway. This already gave you grief in a previous experiment, and it has caught me out too, in the past. The idea is that you can apply a different voltage to the bottom half of the board, but that creates its own opportunities for error. I really think it's a bad design.Charles Platthttps://www.blogger.com/profile/00968751199924367578noreply@blogger.comtag:blogger.com,1999:blog-6615160292280278140.post-57198425203316491062010-02-18T15:01:48.494-05:002010-02-18T15:01:48.494-05:00James, you do not show the top of the breadboard, ...James, you do not show the top of the breadboard, but I am assuming you are supplying positive and negative down the pair of left-hand buses, and also positive and negative down the pair of right-hand buses.<br /><br />Unfortunately you have only jumpered one of the pair of buses on the left, and one of the pair of buses on the right, to connect power to the bottom half of the breadboard. Therefore your pushbutton is not receiving any power, and your counter chip also isn't receiving all the power that it should have. Add the missing jumpers to connect both of the buses on each side, and you should find a marked improvement.Charles Platthttps://www.blogger.com/profile/00968751199924367578noreply@blogger.comtag:blogger.com,1999:blog-6615160292280278140.post-67310381769575306942010-02-18T14:42:36.585-05:002010-02-18T14:42:36.585-05:00Have you tried moving the circuit to a different p...Have you tried moving the circuit to a different part of the board? Maybe there is a broken connection in the bread board somewhere. Or maybe you can use the multimeter to make sure all of the points are receiving current.atshttps://www.blogger.com/profile/01078824472678425262noreply@blogger.com