On the bottom of each button is a conductive pad ring which can close a properly design contact underneath. We have an EagleCad library which has objects for the buttons and optional LEDs so you can use them in your next PCB design.
Each button is 10mm tall and can fit a 3mm LED inside quite easily. 5mm LEDs are too big, so stick with 3mm here. The LED is optional, having it or not does not affect the ‘action’. but it’s nice to backlight buttons. Diffused LEDs are best, so check out our offerings: the blue, white and red look best, if you’re sourcing your own LEDs go for something with 300mcd or greater brightness. Diffused looks better than not.
Chances are you don’t want to make your own PCB, so pick up an Adafruit Trellis, our tile-able driver which can control 16 LEDs + these 16 buttons over I2C
Check out our github repository for 3D CAD files and an Eagle library with ready-to-go objects
- Dimensions: 60mm / 2.4″ x 60mm / 2.4″ x 11.5mm / 0.45″
- Weight: 17.5g