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Transistor - NPN, 60V 200mA (2N3904)
Price: $0.82
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Item #: COM-00521 -

These are very common, high quality BJT NPN transistors made by ST Micro. Datasheet: 2N3904

Transistor - PNP (2N3906)
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Price: $0.82
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Item #: COM-00522 -

These are very common, high quality BJT, PNP transistors made by ST Micro. **Datasheet: **2N3906

Electrolytic Decoupling Capacitors - 10uF/25V
Price: $0.74
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Availability: Out of Stock
Item #: COM-00523 -

Low-profile electrolytic decoupling capacitors 10uF/25V. These capacitors are great transient/surge suppressors and work well as charge pump caps for MAX232 circuits. High quality radial electrolytic capacitors. Check out our Unregulated Power Supply Tutorial

I2C EEPROM - 256k Bit (24LC256)
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Price: $3.70
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Item #: COM-00525 -

This is an I2C, 256Kbit, Serial Electrically Erasable PROM (EEPROM), capable of operation across a 2.5V to 5.5V range. It has been developed for advanced, low-power applications such as personal communications or data acquisition. This PTH IC also has a page write capability of up to 64 bytes of data and is capable of both random and sequential reads up to the 256K boundary. Its functional address lines allow up to eight devices on the same bus, for up to 2Mbit address space. These 8-pin chips...

Voltage Regulator - 3.3V
Price: $3.46
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Item #: COM-00526 -

This is the basic LD1117V33 voltage regulator, a low drop positive regulator with a 3.3V fixed output voltage. This fixed regulator provides a great amount of stability and protection for your project and with its on chip trimming this regulator is able to reach an output voltage tolerance within ±1%. Each one of these voltage regulators can output a max current of 800mA. Features: Output Voltage: 3.3V Output Current: 800mA Dropout Voltage: 1V Internal Current and Thermal Limit Documents:...

8BitDo Lite Bluetooth Gamepad - Blue
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Price: $42.71
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Item #: WIG-17266 -

The blue 8BitDo Lite Bluetooth Gamepad is an ultra-portable controller made for 2D games & more. Beyond the compatibility for Windows Machines, Steam, Switch, and Raspberry Pi. The 8BitDo Lite provides an easy-to-interface controller for your Bluetooth® enabled robotics projects. The controller features dual D-pads and an assortment of other assignable buttons. 8Bitdo controllers are designed to be as versatile as possible with each of your modern devices. Easily pair your controller as an...

Voltage Regulator - Adjustable
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Price: $3.20
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Item #: COM-00527 -

This is the LM317TG voltage regulator, a three-terminal positive regulator with a 1.2V to 37V adjustable output voltage. This adjustable regulator provides a local regulation, internal current limiting, thermal shut-down control, and safe area protection for your project. Did we mention that this guy is easy to use? It only requires two external resistors to set the output voltage. Each one of these voltage regulators can output a max current of 1.5A. Features: Output Voltage: 1.2V - 37V...

LED - Super Bright Red
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Price: $1.64
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Item #: COM-00528 -

These are very bright LEDs. The LEDs are so bright that it hurts to look directly at them. Please take a look at the pictures to get an idea of the intensity. All lenses are clear. Features: 9,000mcd brightness Standard size - T1 3/4 5mm 2.4V forward drop Max current 20mA Documents: Datasheet LED Tutorial ...

LED - Super Bright Yellow
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Price: $1.64
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Item #: COM-00530 -

These are very bright LEDs. The LEDs are so bright that it hurts to look directly at them. Please take a look at the pictures to get an idea of the intensity. All lenses are clear. Features: Standard Size - T1 3/4 5mm 10,000mcd brightness 2.4V forward drop Max current 20mA Documents: Datasheet LED Tutorial ...

LED - Super Bright White
Price: $1.71
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Item #: COM-00531 -

These are very bright LEDs. The LEDs are so bright that it hurts to look directly at them. Please take a look at the pictures to get an idea of the intensity. All lenses are clear. Features: Standard Size - T1 3/4 5mm Forward Voltage: Min: 3.2V Max: 3.4V Max current 20mA Documents: Datasheet LED Tutorial ...

LED - Basic Red 3mm
Price: $0.63
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Availability: Stocked
Item #: COM-00533 -

LEDs - those blinky things. A must have for power indication, pin status, opto-electronic sensors, and fun blinky displays. This is a very standard red LED. The lens is 3mm in diameter, and is diffused. Features: 1.8-2.2VDC forward drop Max current: 20mA Suggested using current: 16-18mA Luminous Intensity: 150-200mcd Documents: Datasheet LED Tutorial ...

Crystal 16MHz
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Price: $1.64
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Item #: COM-00536 -

Standard frequency crystals - use these crystals to provide a clock input to your microprocessor. Rated at 20pF capacitance and +/- 50ppm stability. Low profile HC49/US Package.

Crystal 32kHz
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Price: $2.46
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Item #: COM-00540 -

Standard 'Watch' or Real-Time-Clock crystal. 32.768kHz means it is precisely half of a 16-bit counter. Start counting at 0x8000 (or 32768). When the counter rolls over from 65535 to 0, then you know that exactly one second has passed. Reset the interrupt, reset the counter, and start counting again! Rated at 12.5pF load capacitance, 35K ohm max (18K ohm typical) series resistance, and +/- 20ppm stability. Small cylinder package.

Ceramic Resonator 8MHz
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Price: $1.64
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Item #: COM-00542 -

Resonators function like crystals but stick closer to their specified frequency over a full temperature range. These resonators are +/-0.5% or better from -20C-+80C. These resonators have built-in load capacitors so no external caps are needed. **Datasheets: ** 20MHz, 10/8/4MHz

RS232 Converter SMD - MAX3232
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Price: $3.20
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Item #: COM-00589 -

The 'must have' IC for 3V projects. This is the RS232 converter IC that is capable of running at 3V and communicating with 3V logic. Comes in an easy to solder 16-Pin SOIC SMD package. Requires four external 0.1uF ceramic capacitors - no more 10uF monsters! Operates from 2.7V to 6V. Documents: [Datasheet ](http://cdn.sparkfun.com/datasheets/Components/General IC/SP3232EBCA-L.pdf)(3232EB)

Voltage Regulator - Adjustable LM1117 SMD
Price: $2.46
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Availability: Out of Stock
Item #: COM-00595 -

This is a 1A Adjustable SOT-223 voltage regulator capable of outputting 1.2V to 18V. The LM1117 uses the same pin-out and setup as the popular LM317 adjustable regulator, contained in a handy surface mount package. Requires two external resistors to function. Documents: FAN1117A.pdf SFE Eagle Library has this part! Check out our Unregulated Power Supply Tutorial ...

Surface Mount DPDT Switch
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Price: $2.46
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Item #: COM-00597 -

Surface mount DPDT switch for those tight portable designs. Capable of switching up to 1.2VA (360mA at 3.3V and 240mA at 5V). Documents: Datasheet

LED Matrix - Dual Color - Small
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Price: $8.61
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Item #: COM-00681 -

"LED Matrix with dual-color LEDs. This small matrix has both bright-red and bright-green LEDs built into one common cathode housing. Unit comes with a black finish and a opaque LED lenses. The picture does not quite do the matrix justice. The Red and Green LEDs are quite clear, and turning both on creates a nice yellow color. Dimensions: 0.275x1.25x1.25" Documents: Datasheet " ...

2.4GHz Transceiver IC - nRF24L01+
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Price: $6.16
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Item #: COM-00690 -

Nordic Semiconductor nRF24L01+. Transceiver chip operating in the 2.4GHz band. Take all the coolness of the nRF2401A and add some extra pipelines, buffers, and an auto-retransmit feature - very nice! The improved '+' version of the nRF24L01 includes more features and better range! Features: Drop in compatible with nRF24L01 1.9V-3.6V supply 2Mbit data rate New long range 250kbit option Auto acknowledge Auto re-transmit Multiceiver - 6 data pipes 32 byte separate TX and RX FIFOs 5V tolerant...

Super Capacitor - 10F/2.5V
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Price: $8.13
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Item #: COM-00746 -

Yes you read that correctly - 10Farad capacitor. This small cap can be charged up and then slowly dissipated running an entire system for hours. Combine two in series for 5F/5V. Do not over voltage or reverse polarize these capacitors. Features: 13mm x 33.5mm Documents: Datasheet

Button Pad 4x4 - LED Compatible
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Price: $9.07
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Item #: COM-07835 -

This is a translucent silicon rubber button pad with 16 buttons originally inspired by the folks at monome.org. Each button has a hole underneath that accepts either a 3mm or 5mm standard LED. The idea is that you can create a button interface of your choice with the ability to display simple colors under each button. Mainly, we wanted to use our tri-color LEDs to create a full RGB color for each button. 16 button pad can be split up into four, 4 button pads. Each button has a conductive...

Button Pad 2x2 - LED Compatible
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Price: $3.20
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Item #: COM-07836 -

This is a translucent silicon rubber button pad with 4 buttons orignally inspired by the folks at monome.org. Each button has a hole underneath that accepts either a 3mm or 5mm standard LED. The idea is that you can create a button interface of your choice with the ability to display simple colors under each button. Mainly, we wanted to use our tri-color LEDs to create a full RGB color for each button. Each button has a conductive circle backing so that a switch can be created with exposed PCB...

Triple Output LED RGB - SMD
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Price: $3.70
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Item #: COM-07844 -

This is the very popular RGB combo but in SMD form. These units have four pads with a common anode configuration. Use this one LED for three status indicators or pulse width modulate all three and get mixed colors! Simple breakout board available below. Iv (Typical): Red: 81mcd Green: 130mcd Blue: 54mcd Vf (Typical): Red: 2.0V Green: 3.5V Blue: 3.5V Wavelength (λD - nm): Red: 615nm Green: 530nm Blue: 470nm Documents: Datasheet LED Tutorial ...

Mini Speaker - PC Mount 12mm 2.048kHz
Price: $3.25
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Availability: Stocked
Item #: COM-07950 -

This is a small 12mm round speaker that operates around the audible 2kHz range. You can use these speakers to create simple music or user interfaces. This is not a true piezoelectric speaker but behaves similarly. Instead of a piezoelectric crystal that vibrates with an electric current, this tiny speaker uses an electromagnet to drive a thin metal sheet. That means you need to use some form of alternating current to get sound. The good news is that this speaker is tuned to respond best with a...