Keypad, 4x4
author: AVB
2 layer board of 2.37 x 1.98 inches (60.2 x 50.2 mm)
Uploaded:
July 02, 2017
Shared:
August 19, 2017
Total Price:
$23.35
Sixteen-key matrix keypad of TL3342-like switches.
You could make a keypad in your sleep. It is not difficult. The real problem is, you will be asleep by the time it is finished, because wiring one up manually is dull and repetitive. You could save yourself a lot of time and buy a keypad from Adafruit or Sparkfun; it would be cheaper and better. But what if, for some strange reason, you still want a keypad that calls for an exercise in reflow soldering? Fine, here you go.
You will need sixteen TL3342 (or equivalent) pushbutton switches, some good (not bad) solder paste, solder paste stencil, and a reflow setup of some sort. The gerber file for the stencil is included in the archive (file name is “keypad4x4-F.Paste.gbr”) and you can order it from OSH Stencils (they do not have a sharing feature at this time, unfortunately.) You could solder the pushbutton switches with a soldering iron, too, but it would be nearly as boring as wiring it up manually. If you intend to plug it into a breadboard, you will also need an eight-pin, 2.54mm-pitch, one-row header.
Pushing those tiny buttons with your fingers can be a pain, which is why I created this enclosure: Keypad, 4x4, Enclosure You will need some 3/8" #4-40 screws and a bunch of washers to assemble it together.
Designed with KiCAD Version 4.0.6.
Sixteen-key matrix keypad of TL3342-like switches.
You could make a keypad in your sleep. It is not difficult. The real problem is, you will be asleep by the time it is finished, because wiring one up manually is dull and repetitive. You could save yourself a lot of time and buy a keypad from Adafruit or Sparkfun; it would be cheaper and better. But what if, for some strange reason, you still want a keypad that calls for an exercise in reflow soldering? Fine, here you go.
You will need sixteen TL3342 (or equivalent) pushbutton switches, some good (not bad) solder paste, solder paste stencil, and a reflow setup of some sort. The gerber file for the stencil is included in the archive (file name is “keypad4x4-F.Paste.gbr”) and you can order it from OSH Stencils (they do not have a sharing feature at this time, unfortunately.) You could solder the pushbutton switches with a soldering iron, too, but it would be nearly as boring as wiring it up manually. If you intend to plug it into a breadboard, you will also need an eight-pin, 2.54mm-pitch, one-row header.
Pushing those tiny buttons with your fingers can be a pain, which is why I created this enclosure: Keypad, 4x4, Enclosure You will need some 3/8" #4-40 screws and a bunch of washers to assemble it together.
Designed with KiCAD Version 4.0.6.
