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Thread: Failure, but maybe I can get it to work later... Reply to Thread
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  Topic Review (Newest First)
04-22-2017 06:09 PM
CharlesWebster I built something similar a million years ago, and as I recall it took 5 or 6 relays to provide the latch and lock-out features. A micro controller would have been easier.

I wish we had been able to use phones, but in those days they had to be connected to Ma Bell and didn't run Apps ;-)

Have fun
04-22-2017 02:37 PM
papasombre Very nice boxes, Doug!!!

I like them a lot.
04-03-2017 02:12 PM
RainMan 2.0 I have a computer stamp from Paralax , but not much time spent with them .
I was trying to figure out how to go old school with relays . I found a good YouTube video on latching a relay also , but I couldn't get it threw my head how to make it so the first one latching would effectively lock out the others without a whole bunch of other relays and wiring .
I know I'm missing something simple here
04-03-2017 01:27 PM
TenGees A couple of things that I would check:

Test the voltage across the switches. With the switch not pressed it should be the supply voltage (5 volts?), pressed it should be 0.

Are your switches NO (Normally open)?
04-03-2017 12:42 PM
Originally Posted by old coasty View Post
Doug, It's amazing how things go adrift when you go to sea on a regular basis.
College tuition payments are almost upon me, then after that I can maybe find a 'normal' work schedule
04-03-2017 11:53 AM
old coasty Doug, It's amazing how things go adrift when you go to sea on a regular basis.
04-03-2017 11:12 AM
MEBCWD Doug the boxes look great and problem may be the controller program like you mentioned. I know a lot of things work great until they update the operating system and everything just stops working. Maybe it will be as simple as finding an update to the controller.

Good luck figuring out how to get them working, sounds like you have some help on the way.
04-03-2017 11:05 AM
Herb Stoops Glad you understand, please post the outcome of this dilemma.

04-03-2017 10:59 AM
Originally Posted by Knothead47 View Post
Just use a plain ol' flashlight battery and bulb. Should be easy to wire.
The goal is to have a lockout feature to only illuminate the first button pressed. It also was an excuse to play with these cheap, yet surprisingly capable micro controllers.

I have received a gracious offer from a forum member to help troubleshoot, as well as a link from another to a different wiring arrangement that may work.
04-03-2017 10:18 AM
Knothead47 Just use a plain ol' flashlight battery and bulb. Should be easy to wire.
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