I think Frank is onto something here. Once I understood the active-low issue <https://groups.google.com/d/msg/rctankcombat/hu2G5C2fVzo/zOoDQ_Q1hlwJ> I tried holding my "fire" button down (to put the switch into the active-high state) and manually pulling the trigger.
I also tried holding down the "fire" button and releasing it briefly, assuming the reverse logic would work. No luck. The R/C switch is running off the 6 V R/C receiver power. The marker has a 9 V battery for its supply. The pull-up in the marker logic may be too much for the digital signal to overcome. Interfacing systems with different signal levels is always a challenge. On Saturday, October 11, 2014 8:08:40 PM UTC-4, Frank Pittelli wrote: > > Psst. Weak pull-up. > On Friday, October 10, 2014 12:19:41 PM UTC-4, Mike Lyons wrote: > > ... > Advanced challenge #1: Devise a diagnostic procedure using the existing setup to confirm your theory. -- -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat+unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat --- You received this message because you are subscribed to the Google Groups "R/C Tank Combat" group. To unsubscribe from this group and stop receiving emails from it, send an email to rctankcombat+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.