Announcement

Collapse
No announcement yet.

Design keypad on pcb

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • saeednowroozi
    replied
    Think you
    answer was perfect.

    Leave a comment:


  • robertferanec
    replied
    Design it based on the rubber keypad you are using. Or, if it needs to be exactly the same as on the PCB, you can measure it's dimensions.

    I have done this in past and I don't think there are some special requirements. You can just draw tracks close to each other (as two opposite combs) and the tracks will be shorted when a key is pressed. What you may want to consider is to add carbon surface on the tracks (make a note in the manufacturing notes layer) or make the PCB finish gold (do not use tin finish, that will oxidize and lose contact).

    PS: Make a schematic symbol for the button and create a footprint for it (the "two combs" footprint). Then you can simply place as many buttons as you need.

    Leave a comment:


  • saeednowroozi
    started a topic Design keypad on pcb

    Design keypad on pcb

    Hi all
    I must design a keypad on pcb but I do not any standard about it(size,...). I upload a picture maybe help for my question.
Working...
X