the battery was for the schematic, and initial breadboard testing. Thank you for the input though! Wall wart power the tube nicely. Now, to move to a bigger uC, and get four tubes running ( and singing)
Shane On Wed, Jul 20, 2011 at 12:36 PM, neutron spin <mrstan...@charter.net>wrote: > I have a minor comment on the circuit design....If you are going to > use a battery the 7805 will waste power. How can this be avoided? One > fix would be to use a Low-dropout regulator...using the walwart of > course you are not concerned with battery life. > > Rergards > > Robert > > > On 20 July, 11:47, Shane Ellis <mime...@gmail.com> wrote: > > John, you lead me on the right path. > > I never bothered to replace the uC on the breadboard ( I assumed it > worked > > due to the functioning numbers, and the fact that it took the program) > > Replaced the uC, and BINGO! we have a steady functioning tube counting > from > > 0-9. > > > > Thank you everyone for your help! I have a few new ideas to check in > the > > future, thanks to your suggestions. > > > > WOOHOO! > > > > Shane > > > > > > > > > > > > > > > > On Wed, Jul 20, 2011 at 10:07 AM, John Rehwinkel <jreh...@mac.com> > wrote: > > > On 7/20/2011 9:07 AM, Shane Ellis wrote: > > > > >> Unbelievable. I yanked out the four data wires, (picaxe to 74141), > double > > >> checked them, and NOW, I get 4,5,6,7!!!! What is going on!? > > > > > Sounds like the low 3 bits are connected correctly, and the high bit is > not > > > connected. TTL chips like the 74141 will pull their inputs high if > > > unconnected. > > > > > - John KG4L > > > > > -- > > > You received this message because you are subscribed to the Google > Groups > > > "neonixie-l" group. > > > To post to this group, send an email to neonixie-l@googlegroups.com. > > > To unsubscribe from this group, send email to neonixie-l+unsubscribe@ > ** > > > googlegroups.com <neonixie-l%2bunsubscr...@googlegroups.com>. > > > For more options, visit this group athttp://groups.google.com/** > > > group/neonixie-l?hl=en-GB< > http://groups.google.com/group/neonixie-l?hl=en-GB> > > > . > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To post to this group, send an email to neonixie-l@googlegroups.com. > To unsubscribe from this group, send email to > neonixie-l+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/neonixie-l?hl=en-GB. > > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixie-l@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
