Adafruit
ChromaTek 19mm Rugged Latching Metal Pushbutton with NeoPixel
By popular demand, we now have rugged metal buttons with a full-color NeoPixel LED ring light! These chrome-plated metal buttons are rugged, but ce...
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By popular demand, we now have rugged metal buttons with a full-color NeoPixel LED ring light! These chrome-plated metal buttons are rugged, but certainly not lacking in flair.
This is a 19mm Latching version of the RGB pushbutton. Simply drill a 19mm hole into any material up to 0.45" thick and you can fit these in place – there's even a rubber gasket to keep water out of the enclosure. On the front of the button is a flat metal actuator, surrounded by a plastic RGB LED ring.
To use the NeoPixel Color LED: Power the internal NeoPixels with +5V, ground and a NeoPixel signal line - it's a lot easier than wiring up 3 separate RGB LED diodes. Best of all, the NeoPixel signal is chainable, so you can light up multiple switches in one panel.
This pushbutton has both normally-open and normally closed contacts, and unlike our other rugged metal pushbuttons, these come with a detachable 7-wire cable harness to make wiring easy. Follow the datasheet for the wiring pinout.
The switch and LED are electrically separated, so to change the color, use a microcontroller to both read the contact pins and control the NeoPixel.
We also carry a Momentary version.
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- NeoPixel
- A type of addressable LED system where colour data is sent along a single digital data line from one LED or controller to the next. Compatibility matters because the timing and signal format must match for the lights or driver board to respond correctly.
- RGB
- Short for red, green and blue, the three primary colours of light that are mixed in varying amounts to make a wide range of colours. In electronics RGB can refer to an LED or pixel that blends these three colours, or to a colour signal or interface that carries separate red, green and blue channels.
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