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 Sparkfun products range from things like resistors and LEDs to humidity sensors and LCD screens.  Including: Books, Cables, Cellular, Components, Development Tools, E-Textiles, GPS, Kits, LCDs, Programmers, Prototyping, Sensor, Tools, Robotics, Wireless

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    Mini Push Button Switch Mini Push Button Switch Miniature Single Pole Single Throw switches. These are high quality Omron type B3F momentary on switches. Perfect as a tactile reset switch. Mounts directly into standard bread boards. Rated up to 50mA. Documents: Dimensional DrawingSFE Eagle Library has this part! $0.50

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    Momentary Push Button Switch - 12mm Square Momentary Push Button Switch - 12mm Square This is a standard 12mm square momentary button. What we really like is the large button head and good tactile feel (it 'clicks' really well). This button is great for user input on a PCB or a good, big reset button on a breadboard. Breadboard friendly! $0.50

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    Thumb Joystick Thumb Joystick This is a joystick very similar to the 'analog' joysticks on PS2 (PlayStation 2) controllers. Directional movements are simply two potentiometers - one for each axis. Pots are ~10k each. This joystick also has a select button that is actuated when the joystick is pressed down. SFE Eagle Library has this part! Breakout board available below. $3.95

    Ships in 7 Days
    Slide Potentiometer - 10K Slide Potentiometer - 10K A simple slide potentiometer can go a long way. Rated at 10kOhm and 0.5W. Comes withe solder lug connections. Documents: Datasheet $2.95

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    SPDT Slide Switch SPDT Slide Switch This is a simple SPDT slide switch - great for use as an ON/OFF button, or just as a general control switch. The pins are spaced by 0.1", so it's breadboard friendly. The switch is rated for 0.3A at 50VDC. This switch is just a bit smaller than our popular SPDT Mini Power Switch, but uses the same pin spacing. Being smaller takes up less PCB ... $0.75

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    Clear Plastic Knob Clear Plastic Knob Clear Plastic Knob sku: COM-10597   This plastic knob accepts a 6mm shaft and has a 15mm outer diameter. They simple press-fit onto a shaft. These are clear so that they can be used with our illuminated potentiometer. Documents: Dimensional Drawing ... $0.95

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    Rotary Encoders - Illuminated Rotary Encoders - Illuminated Rotary Encoders - Illuminated sku: COM-10596   Rotary encoders are used similarly to potentiometers. They're different from potentiometers in that an encoder has full rotation without limits. They output gray code so that you can tell how much and in which direction the encoder has been turned. This encoder is e... $2.95

    Ships in 7 Days
    Rotary Encoder - Illuminated (RGB) Rotary Encoder - Illuminated (RGB)  Rotary Encoder - Illuminated (RGB)sku: COM-10982  Rotary encoders can be used similarly to potentiometers. The difference being that that an encoder has full rotation without limits (It just goes round and round). They output gray code so that you can tell how much and in which direction the encoder has been turned. They're great for navigating... $4.50

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    Tactile Button Assortment Tactile Button Assortment These tactile buttons are great for all sorts of projects. This assortment comes with 2 of each of 6 different colors for a total of 12 buttons. The colored caps are removable and the buttons fit into breadboards. See the drawing below for exact dimensions. Documents: Drawing $4.95

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    Slide Potentiometer Knob Slide Potentiometer Knob This is the knob that connects to the linear slide potentiometer.  Knob has a nice friction fit onto slide. Documents: Datasheet $0.95

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    SPDT Mini Power Switch SPDT Mini Power Switch  Simple SPDT Switch. Rated at 30V/200mA. The pins have .1" spacing - fits great into a breadboard! Use it as a power switch or general control switch. $1.50

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    Concave Button - Red Concave Button - Red This is a 35mm concave momentary push button similar to the ones you find on arcade games. Simple screw in design. Perfect for mashing. This button has a great tactile, 'clicky' feel. Features: Concave plunger design Durable nylon material Microswitch: max 3A @ 120 VAC Microswitch reliability tested to 10,000,000 cycles Inc... $1.95

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    Keypad - 12 Button Keypad - 12 Button A basic 12 button keypad for user input. The buttons are setup in a matrix format. This allows a microcontroller to 'scan' the 7 output pins to see which of the 12 buttons is being pressed. There's not a really good tutorial out there on button pad matrix setups! Sorry about that. We should write one... Documents:Check out this awesome tutoria... $3.95

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    Big Dome Push Button Big Dome Push Button  It's the end of the world, and you need a button to press. This is it. A 100mm diameter (outside diameter) dome illuminated push button comes with an LED, securing nut and a pre-installed long life horizontal microswitch. Button can also be adjusted to a low profile button by removing the middle ring. Features:LED indicator light runs at 12VDC... $14.95

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    Push Button 33mm - Blue Push Button 33mm - Blue This is a 33mm round momentary push button similar to the ones you find on arcade games. Simple screw in design. Perfect for mashing. Features: Convex Button 35.75 mm Diameter x 46 mm Height M28 thread Mounting Hole Diameter: 27.3 mm Net weight: 0.015kg $0.95

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    Key Switch Key Switch Key Switch - Small sku: COM-10445  Have you ever wanted to start your widget the same way you start your car? These small switches are the 'key" to making that happen. This simple ON-OFF switch can be used to power up your project with the turn of a key. At only 14.6mm across the top and 23mm long, it won't take up much space in yo... $0.95

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    DIP Switch - 8 Position DIP Switch - 8 Position DIP switch with 8 inidividual switche positions. The pins have .1" spacing - fits great into a breadboard! Works great as general control switches. Documents: DIP8 Switch Datasheet SFE Eagle Library has this part! $1.50

    Ships in 24 hours
    Thumb Slide Joystick Thumb Slide Joystick This is a resistive analog joystick, very similar to those found on the PSP1000. These compact joysticks are different in that they have a very interesting 'slide' feeling. From our customer regarding pinouts: With the nub up and facing you, and the pins on the bottom away from you and pointing towards your chest, from ... $3.50

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    Circular LED Bargraphs Circular LED Bargraphs  Circular LED Bargraphssku: COM-10595  These circular LED displays are a lot of fun. Essentially, these are what you would get if you could 'wrap' one of our LED bargraphs around a circle. They consist of 16 red LEDs arranged so that each quarter of the circle has a common ground and four anode pins, resulting in 20 pins total on the device. Bec... $12.00

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    Reed Switch Reed Switch This is a small device called a reed switch. When the device is exposed to a magnetic field, the two ferrous materials inside the switch pull together and the switch closes. When the magnetic field is removed, the reeds separate and the switch opens. This makes for a great non-contact switch. This switch can carry up to 1.2A. Documents:Datashee... $1.50

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    Concave Button - Green Concave Button - Green This is a 35mm concave momentary push button similar to the ones you find on arcade games. Simple screw in design. Perfect for mashing. This button has a great tactile, 'clicky' feel. Features: Concave plunger design Durable nylon material Microswitch: max 3A @ 120 VAC Microswitch reliability tested to 10,000,000 cycles Inc... $1.95

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    5-way Tactile Switch 5-way Tactile Switch Sometimes you want a small input and a single button just won't cut it. A 5-way tactile switch allows for a joystick-like interface in a very small package. These are surface mount, but easily soldered. Documents: Datasheet $1.95

    Ships in 7 Days
    Push Button 33mm - Green Push Button 33mm - Green This is a 33mm round momentary push button similar to the ones you find on arcade games. Simple screw in design. Perfect for mashing. Features: Convex Button 35.75 mm Diameter x 46 mm Height M28 thread Mounting Hole Diameter: 27.3 mm Net weight: 0.015kg $0.95

    Ships in 7 Days
    LED Tactile Button - Red LED Tactile Button - Red  LED Tactile Button - Redsku: COM-10442 This is a simple LED-illuminated tactile button with an red cap. It's just like a basic tactile button, but it lights up red! So now you can get visual feedback, or light up your project. These have a 12mm body and are rated for 50mA. They don't easily fit into a breadboard, but check below for a breakout ... $2.25
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    Concave Button - Black Concave Button - Black This is a 35mm concave momentary push button similar to the ones you find on arcade games. Simple screw in design. Perfect for mashing. This button has a great tactile, 'clicky' feel. Features: Concave plunger design Durable nylon material Microswitch: max 3A @ 120 VAC Microswitch reliability tested to 10,000,000 cycles Includes... $1.95

    Ships in 7 Days
    Concave Button - Blue Concave Button - Blue This is a 35mm concave momentary push button similar to the ones you find on arcade games. Simple screw in design. Perfect for mashing. This button has a great tactile, 'clicky' feel. Features: Concave plunger design Durable nylon material Microswitch: max 3A @ 120 VAC Microswitch reliability tested to 10,000,000 cycles Inc... $1.95

    Ships in 7 Days
    Push Button 33mm - Yellow Push Button 33mm - Yellow This is a 33mm round momentary push button similar to the ones you find on arcade games. Simple screw in design. Perfect for mashing. Features: Convex Button 35.75 mm Diameter x 46 mm Height M28 thread Mounting Hole Diameter: 27.3 mm Net weight: 0.015kg $0.95

    Ships in 7 Days
    Toggle Switch Toggle Switch This is a heavy duty SPST toggle switch - your basic on/off toggle. Rated for 2A at 250V or 4A at 125V. Includes a face plate and two threaded nuts for mounting. Works great with our missile switch cover. Dimensions: 0.5 x 0.55 x 1.45" $1.95

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    LED Tactile Button - Blue LED Tactile Button - Blue  LED Tactile Button - Bluesku: COM-10443 This is a simple LED-illuminated tactile button with an clear cap. It's just like a basic tactile button, but it lights up blue! So now you can get visual feedback, or light up your project. These have a 12mm body and are rated for 50mA. They don't easily fit into a breadboard, but check below for a break... $2.25

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    Rocker Switch - Round w/ Blue LED Rocker Switch - Round w/ Blue LED  Rocker Switch - Round w/ Blue LEDsku: COM-11155  These panel-mounting rocker switches have built-in indicator lights to let you know when your switch is engaged. They mount into a 20.2mm diameter hole and are rated up to 16A @ 12v. These simple SPST on-off switches have three terminals, the two that you would normally see plus a ground tab for ... $1.50

    Ships in 7 Days
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