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.

Reply via email to