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Electromechanical

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916-ADA Waterproof Metal On/Off Switch with Red LED Ring - 16mm Red On/Off
916-ADA Waterproof Metal On/Off Switch with Red LED Ring - 16mm Red On/Off
US$10.42
This button is an on/off switch button, when you press it the 'normally-open' contact shorts to the common contact and the button stays 'pressed'. When you press it a second time, the button springs open, and the contacts open up again. 
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820-ADA Micro Switch w/Wire - Three Terminals
820-ADA Micro Switch w/Wire - Three Terminals
US$5.17
This microswitch has a 3" long wire lever actuator and three terminals. Sometimes called 'coin switches' - they're used in coin detectors. The terminals are along the bottom (the other microswitches have them on the sides).
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819-ADA Micro Switch w/Roller Lever - Three Terminal
819-ADA Micro Switch w/Roller Lever - Three Terminal
US$3.76
This microswitch has a flat metal lever actuator and a roller at the end. The roller makes it a little better for angled actuation. This switch comes with three terminals (common/normally-open/normally-closed). We also have kinds with a bump actuator, flat lever and long wire.
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1152-ADA Arcade/Button 0,110" Quick-Connect Wire Pair, 20cm - Set of 10 pairs
US$9.54
Quick connector wire sets will make wiring up our arcade-style or metal waterproof buttons quicky-quick. Each wire comes as a 'pair' with two 0.110" quick-connects pre-crimped onto 20cm long wires.
Delivery within 2-3 weeks
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423-ADA Foot switch
423-ADA Foot switch
US$13.13
This foot switch is made of rubbery plastic, is plenty strong to put up with any amount of stomping, and contains a snap switch. You can use the switch as either a "normally open" or "normally closed" type. Attached to the switch is a 2 meter long cable so you can wire it directly to your project.
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1064-ADA Electret Microphone - 20Hz-20KHz Omidirectional
1064-ADA Electret Microphone - 20Hz-20KHz Omidirectional
US$2.63
This electret capsule microphone is the same one we use in our great microphone amplifier board. It contains a small vibrating element that will output a few milllivolts peak-to-peak.
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972-ADA Servo Extension Cable - 30cm / 12" long
972-ADA Servo Extension Cable - 30cm / 12" long
US$3.42
Stretch out your servo connections with this flexible servo extension cord. It has a 3 pin shrouded "male" connection to plug your servo into and then, 30cm later, a 3 pin female connection. It even keeps the common red/black/white color coding.
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344-ADA Heat Shrink Pack
344-ADA Heat Shrink Pack
US$8.67
Features: Pack contains four 6" pieces of the following sizes: 3/32", 1/8", 3/16", 1/4", 3/8", 1/2". 2:1 shrink ratio. High-grade flexible polyolefin material. UL approved.
Delivery within 2-3 weeks
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504 Thru-hole 5-way Navigation switch SKQUCAA010
504 Thru-hole 5-way Navigation switch SKQUCAA010
US$5.68
This navigation switch is an intuitive way to add 5 button's worth of interfacing with a single component. Inside is 5 switches: left, right, up, down and 'select' (pressing down), all with a common ground pin.
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711 DC Toy / Hobby Motor - 130 Size
711 DC Toy / Hobby Motor - 130 Size
US$3.42
These are standard '130 size' DC hobby motors. They come with a wider operating range than most toy motors: from 4.5 to 9VDC instead of 1.5-4.5V. This range makes them perfect for controlling with an Adafruit Motor Shield, or with an Arduino where you are more likely to have 5 or 9V available than a high current 3V setting.
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918 Small Reduction Stepper Motor - 12VDC 48-Step 1/16 Gearing
918 Small Reduction Stepper Motor - 12VDC 48-Step 1/16 Gearing
US$8.67
This is a great first stepper motor, good for small projects and experimenting with steppers. This uni-polar motor has a built in mounting plate with two mounting holes. 
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1201 Vibrating Mini Motor Disc
1201 Vibrating Mini Motor Disc
US$3.42
Two wires are used to control/power the vibe. Simply provide power from a battery or microcontroller pin (red is positive, blue is negative) and it will buzz away. Works from 2V up to 5V, higher voltages result in more current draw but also a stronger vibration.
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1010 Colorful Square Tactile Button Switch Assortment - 15 pack
1010 Colorful Square Tactile Button Switch Assortment - 15 pack
US$11.46
These buttons are bigger than the 6mm ones we carry, and come in a pack of 15. Each button comes with a candy-colored square cap that snaps on. You get three of each color-- blue, grey, yellow, green, and red. The square plastic button tops affix easily to the tactile switch body.
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1009 Colorful Round Tactile Button Switch Assortment - 15 pack
1009 Colorful Round Tactile Button Switch Assortment - 15 pack
US$10.42
These buttons are bigger than the 6mm ones we carry, and come in a pack of 15. Each button comes with a candy-colored round cap that snaps on. You get three of each color-- blue, grey, yellow, green, and red. The round plastic button tops affix easily to the tactile switch body
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SPK-120, 2.50 inch Miniature Speaker 8Ω 13 Watt
US$2.72

This low-cost 2.50 inch speaker is ideal for hobbyists and schools. Miniature Speaker, 13 Watts @ 8 ohms.

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