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This is a 12-step rotary encoder with a nice 'clicking' feel. It's breadboard friendly, and has a pretty handy select switch …
This is a small device called a [reed switch](http://en.wikipedia.org/wiki/Reed_switch). When the device is exposed to a magn…
We use barrel jacks a lot around here and sometimes we need to pop a switch into the mix. That usually means hacking up a per…
We all know that you can never get too many LEDs. Don't worry, we've got you covered. This is a pack of 25 LEDs all convenien…
We know this looks like a lot of our other LEDs, but it's not! This is a PTH Addressable RGB LED with a WS2812 control IC bui…
This is a compact and easy to use relative humidity sensor from Sensirion. The SHT15 digital humidity and temperature sensor …
This is a common 555 timer/oscillator from TI. A classic for all of those first year circuits projects where you need to blin…
These are *very* bright LEDs. The LEDs are so bright that it hurts to look directly at them. Please take a look at the pictur…
This 0.012" Muscle Wire® (aka shape memory [Nitinol](http://en.wikipedia.org/wiki/Nickel_titanium)) is a one foot long piece…
LEDs - those blinky things. A must have for power indication, pin status, opto-electronic sensors, and fun blinky displays. …
Who doesn't love the soft glow of electroluminescence? This EL panel is a flexible plastic sheet which contains a phosphor la…
Are you trying to make a quick dime from electronics? Why limit yourself to dimes? This coin acceptor will take three differe…
4-digit 7-segment displays are really neat little devices, it's a shame that they can be so cumbersome to control. Well we've…
This inline switch is great when you just want a simple on/off toggle switch that's already enclosed. Inside is a simple rock…
An adjustable potentiometer can open up many interesting user interfaces. Turn the pot and the resistance changes. Connect VC…
VS1063 is an easy-to-use, versatile encoder, decoder and codec for a multitude of audio formats. They can be hard to get hold…
These are small rare earth magnets - 0.25" cubed. Composed of Neodymium/Iron/Boron (NdFeB), these magnets are curiously stron…
This 200 pulse per rotation single-output encoder outputs electrical pulses which you can interpret using a microcontroller t…
This is a translucent silicon rubber button pad with 16 buttons originally inspired by the folks at [monome.org](http://monom…
It's not what project you have in mind that may use a rocket launch switch... The question is what project will you come up w…
EL Inverters, if you are wanting to do _anything_ with EL lighting you need one, period. This 3V EL Inverter is a special typ…
This is the LM317TG voltage regulator, a three-terminal positive regulator with a 1.2V to 37V adjustable output voltage. This…
This is a simple 5mm LED with an interesting array of applications. This [UV](http://en.wikipedia.org/wiki/Ultraviolet) LED c…
This is a perfect choice if you are in need of a heavy duty push button! These metal push buttons are a very tough, small, pa…
Sometimes when you have too many choices, it's hard to make a good decision. In fact, there are times when you just want a ba…
This is a single pole, 10 position rotary switch able to select up to 10 different states in a durable package. Unlike our ot…
Yes you read that correctly - 10Farad capacitor. This small cap can be charged up and then slowly dissipated running an entir…
Standard frequency crystals - use these crystals to provide a clock input to your microprocessor. Rated at 20pF capacitance a…
This is an IC Test Clip for 8-pin small outline integrated circuits (SOIC). This test clip assures a secure connection to all…
The WS2812 is an RGB LED with a WS2811 control IC built right into the LED. This really blew our minds to see the control IC …
The TLC5940 is a 16 channel PWM unit with 12 bit duty cycle control (0 - 4095), 6 bit current limit control (0 - 63), and a d…
Do not look into the light. You know you want to, but boy will you be sorry. 1W per channel, RGB High Power LEDs in one alumi…
You can never have too many LEDs. Don't worry, we've got you covered. This is a pack of 100 LEDs. Buy in bulk - save a ton! …
LinkM is a USB adapter that addresses two of the most frequently-requested BlinkM features. It enables you to program BlinkMs…
This through-hole speaker is great for projects where you need something that sounds better than a piezo buzzer but don't hav…
This is the NeoPixel NeoMatrix from Adafruit a large board with 64 WS2812 RGB LEDs arranged in an 8x8 matrix. Each LED is cap…
Do you like LED matrices? We do! Now we are giving you the power to make your own with minimal soldering any beginner can per…
If you used BlinkM and you thought it was good, but needed something to temporarily blind your enemy, the MaxM is what you ne…
This is a large sized RGB LED Matrix with a backpack that has been designed to take SPI serial input and display any graphics…
This is the NeoPixel Stick from Adafruit, a small chainable board with eight 5050 WS2812 RGB LEDs. The WS2812s are each addre…
A small audio speaker that is ideal for radio and amplifier projects and is small enough to fit in robot projects. **Featu…
It's the end of the world, and you need a button to press. This is it. A 100mm diameter (outside diameter) dome illuminated p…
This is an awesome little microSD USB reader. Just slide your microSD card into the inside of the USB connector, then stick t…
Huge 10mm through hole LEDs. Mood-light an entire wall! **Features:** * 3.0-3.4VDC Forward Voltage * 80mA Forward Cu…
This is the P2N2222A, an NPN silicon BJT (Bipolar Junction Transistor). This little transistor can help in your project by be…
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 spa…
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