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Adafruit

$16.05 |
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Little clicky switches are standard input "buttons" on electronic projects. These are just like our Colorful Round Tactile Button Switch Assortment, but alre...

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Little clicky switches are standard input "buttons" on electronic projects. These are just like our Colorful Round Tactile Button Switch Assortment, but already assembled onto a PCB - they even have a pull-up resistor installed! The pins are normally open (disconnected) and when the button is pressed they are momentarily closed.

Each button comes with a candy-colored round cap snapped on. You get one of each color-- blue, white, yellow, red, and black. 

Best of all, each button board comes with a JST-PH 2mm connector and a matching  JST PH 3-Pin to Male Header Cables - 200mm, so wiring up is a cinch. Simply plug the cable in, then use the black wire to connect to your microcontroller/microcomputer ground, white wire to the input signal pin and the red wire to your power pin (3V or 5V) if you want to have the pull-up resistor activated.

If you want to connect to something with alligator clips use our STEMMA to Gator cable. To connect to something with a STEMMA 3-pin connector already, use this cable.

Works great with any device that wants a switch - Arduino, CircuitPython, Raspberry Pi, DIY builds...etc!

Jargon buster

Plain-language definitions for the technical terms used above.

CircuitPython
A beginner-friendly version of Python designed to run directly on microcontroller boards. If a product supports CircuitPython, you can often program it by copying code files onto the board rather than setting up a more complex toolchain.
JST PH
A small keyed plug-and-socket connector with 2 mm pin spacing, often used for low-power electronics connections. You need the correct JST PH cable, and its current rating limits how much power should be passed through it.
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.
PCB
A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
pH
A measure of how acidic or alkaline a liquid is, on a scale where 7 is neutral. For a water monitoring kit, pH tells you about water chemistry and whether the included probe matches the range and accuracy your project needs.
STEMMA
A plug-and-cable connection system used on some maker electronics boards to make wiring simpler. If a product uses STEMMA, you need the matching cable or connector type to plug it in without soldering.
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