SparkFun
Button Pad 4x4 - Breakout PCB
This a simple breakout board for the button pads. Each LED and button is brought out to the side connectors. The connectors are soldered to the back side of ...
This a simple breakout board for the button pads. Each LED and button is brought out to the side connectors. The connectors are soldered to the back side of the PCB. We recommend trimming the connector leads on the button side as short as possible to reduce the deflection of the pad.
Now with footprints for diodes! Use the super cheap 1N4148 through-hole diodes. These can be used to isolate the switches to make for a bit easier decoding.
Documents:
- Schematic
- Eagle Files
- Hookup Guide
- Datasheet (CD74HC4511)
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- PCB
- A printed circuit board is a rigid board with copper tracks that connect electronic parts without loose wires. For this kit, the PCBs also form the airplane shape, so they are both the circuit base and part of the finished model.
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Components
Button Pad 4x4 Breakout Schematic
Schematic · 314.9 KB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 537.5 KB · Click any page to view full size
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