Electronics > Projects, Designs, and Technical Stuff
User Configuration without DIP Switches or Header Pins
NivagSwerdna:
I often have the requirement to make a PCB that has to be configurable.... I have taken to creating a small footprint that allows the user to create a solder bridge for a selection of setting
to be honest this doesn't work particularly well... the solder doesn't pool well to make a connection.
An obvious alternative would be a set of DIP switches or Headers that allow a jumper pin but these are quite large
Any suggestions on making end-user configuration easy? (I am starting to wonder if my JP footprint is unreasonable due to being 0603 sized anyway... might not be feasible for anyone without a microscope?)
Bassman59:
"End user" configuration means no soldering!
What are you configuring? That might help us give a good suggestion.
TheMG:
Some context would be helpful! What kind of thing is this configuring? Does the board include a microcontroller? What sort of maximum size constraint are we dealing with?
bson:
How about 50mil jumpers on a small 50mil SMT pin header? 50mil is pretty small...
Edit: a suitable header is Samtec FTSH-1nn-01-F-DV where 'nn' is the number of pins per row. (E.g., nn=02 for 2 pins per row, for 4 total.) FTS is the same, lower profile.
(Yes, I know you didn't want headers or jumpers, but they do work nicely! :))
Benta:
Easiest and cheapest is an array of vias. Drill out the connections you don't want.
Much faster than solder bridges.
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