Main > Main Forum
Did I screw it up already?
PL1:
--- Quote from: Chris2 on June 11, 2013, 09:45:09 pm ---Don't I still need a ground for every button? Or can I daisy-chain all the grounds and wire one of them to a ground on the PCB?
Also, how are you identifying points as common and not? I just sort of happened to do it to be honest.
--- End quote ---
If you look at the right half of S1-S6, you'll see that they all connect to the same wide ground plane trace that acts as the daisy chain ground -- you can connect your daisy-chain ground wire to any one of the places you've already scratched.
The left half of each of those contacts has a thin trace leading away where you'll connect the wire for the NO terminal of the microswitch.
Scott
BobA:
To tell if you have a common ground all the areas where you have scrapped are electrically the same so therefore are a common ground. If there is a ground that is not connected to all the other grounds this would have to be connected separately. This occurs on some gamepads where there are several grounds that may not be connected together. In this case the separate ground and the corresponding button would have to be used together.
MTPPC:
Your scraping looks fine, but as others have said, you only need one connection to the ground plane. No harm, no foul. Proceed as intended.
lilshawn:
this is where you want to solder (red) to all your NO tabs on your switches and the other ground tab all tied together to black.
:cheers:
Jack Burton:
One thing I have always been curious about:
Could you drill a small hole through the pcb behind each connection point and insert the wires through it before soldering?
The idea is the connection will be stronger since any strain on the wiring will pull the solder towards the pcb instead of away from it.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version