Components + IC's + PCB's

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Audio Jack - 3.5mm (Panel Mount)
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Price: $0.87
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Sparkfun Item #: COM-11154 -

"This is a standard 3.5mm stereo jack with no frills. Panel mount in a 6mm diameter hole for a nice clean headphone, microphone or serial data connection."

Audio Jack - 3.5mm TRRS (SMD)
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Price: $1.65
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Sparkfun Item #: PRT-12639 -

"This is a 3.5mm TRRS SMD audio jack. TRRS connectors are the audio-style connectors that you see on some phones, MP3 players and development boards. TRRS stands for “tip, ring, ring, sleeve,” which reflects the fact that, unlike a standard stereo connector, this actually has three conductors and a ground. Some devices use the extra conductor for a microphone (like hands-free headsets) or to carry a video signal (like in some MP3/MP4 players). Documents: Dimensional Drawing " ...

Audio Jack 3.5mm
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Price: $2.61
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Sparkfun Item #: PRT-08032 -

"Low profile 3.5mm stereo audio jack. Documents:Audio 3.5mm Jack Datasheet"

Audio Plug - 3.5mm
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Price: $0.87
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Sparkfun Item #: COM-11143 -

"This is a simple 3.5mm TRS stereo audio jack with a screw-on plastic shroud. These are great for projects that plug into headphone jacks. Stereo plugs can also be used for carrying serial comm connections! The outer shell unscrews to reveal solder terminals on the inside of the plug. Solder on your wires and crimp the strain relief to make a finished, professional-looking cable."

AVR 14 Pin 20MHz 8K 12A/D - ATtiny84
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Price: $5.13
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Sparkfun Item #: COM-11232 -

"The ATtiny84 is another of Atmel’s little tiny 8-Bit Processors. 8K of program space, 12 I/O lines, and 8-channel 10 bit ADC. It will run up to 20MHz with an external crystal and can be programmed in circuit. Documents: Datasheet Product Card ATtiny Arduino Cores " ...

AVR 28 Pin 20MHz 32K 6A/D - ATMega328P
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Price: $7.85
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Sparkfun Item #: COM-09061 -

"Atmel’s ATMega328P 8-Bit Processor in 28 pin DIP package. It’s like the ATmega168, with double the flash space. 32K of program space. 23 I/O lines, 6 of which are channels for the 10-bit ADC. Runs up to 20MHz with external crystal. Package can be programmed in circuit. 1.8V to 5V operating voltage! Documents: Datasheet Low Power Mode Tutorial " ...

AVR 8 Pin 20MHz 8K 4A/D - ATtiny85
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Price: $4.94
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Sparkfun Item #: COM-09378 -

"Atmel’s itty-bitty ATtiny85 8-Bit Processor. 8K of program space, 6 I/O lines, and 4-channel 10 bit ADC. Runs up to 20MHz with external crystal. Package can be programmed in circuit. Documents: Product Card Arduino Quick Reference "

Ball Bearing - Flanged (1/4" Bore, 1/2" OD, 2-Pack)
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Price: $4.00
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Sparkfun Item #: ROB-13012 -

"These flanged ball bearings fit nicely into a ½" diameter hole and has a ¼" bore. This makes it perfect for all Actobotics channels, hub mounts, or any ½" hole where you need to run a ¼" shaft. Each order is sold in packs of two. Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected...

Ball Bearing - Non-Flanged (8mm Bore, 22mm OD, 2 Pack)
Price: $4.15
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Sparkfun Item #: ROB-13277 -

"These non-flanged “608” sized ball bearings fit nicely into a 22mm diameter hole and has a 8mm bore. This makes it perfect for our 2.975" and 4.90" skate wheels. Note: These ball bearings are sold in packs of 2. Documents: Product Page (535034) "

Balun Ember Transformer (Strip of 5)
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Price: $6.16
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Sparkfun Item #: DD-14410 -

"This is a simple strip of five signal-conditioning Balun Ember Transformers from Wurth Elektronik that allows you to convert an unbalanced signal in a transmission line to a balanced one, or vice versa. Each of these ICs possesses a frequency range of 2400MHz to 2500MHz with an impedance of 50 ohms unbalanced and 100 ohms balanced. These specific transformers were once used in our ATmega128RFA1 Development Board but, sadly, are no longer needed. We have made them available at a drastically...

Barometric Pressure Sensor - BMP180
Price: $10.33
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Sparkfun Item #: COM-11823 -

"The BMP180 is a high-precision, ultra-low power digital barometer. It offers a measuring range of 300 to 1100 hPa with an absolute accuracy of down to 0.02 hPa. The BMP185 is based on piezo-resistive technology for EMC robustness, high accuracy and linearity as well as long term stability. What makes this sensor great is that it is nearly identical to its former rev, the BMP085! This sensor supports a voltage supply between 1.8 and 3.6VDC. It is designed to be connected directly to a...

Barometric Pressure Sensor - MPL115A1
Price: $11.38
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Sparkfun Item #: SEN-09602 -

"The MPL115A1 is a digital barometer that uses MEMs technology to give accurate pressure measurements between 50kPa and 115kPa. We stock the SPI interface version of the sensor. Average current consumption is 10µA at one measurement per second. The sensor outputs both temperature and pressure readings on the SPI bus. See page 3 of the datasheet for information on how to take readings from the pressure sensor. Breakout board coming soon! Features: Wide supply voltage range -40°C to...

Battery Capacity Indicator
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Price: $19.67
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DFRobot Item #: FIT0466 -

Sometimes battery information is not readily available or is hard to understand at a glance. Our Battery Capacity Indicator is a user friendly indicator interface that you can use in your projects. via GIPHY|Specification| Working voltage: 3.3V-5.5V 8 levels of brightness Size: 42*24*8mm/1.65*0.94*0.31 inches|Documents| Product Wiki |ShippingList| Battery Capacity Indicator x1 ...

Battery Holder - 18650 (PTH)
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Price: $1.30
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Sparkfun Item #: PRT-13113 -

"This is a PCB mount clip to hold a 18650 Lithium Ion Cell battery. Each battery holder is sold in single units, you’ll need two for each battery. These work great for larger, high capacity applications where a drop-in rechargable cell is needed. These little guys are low cost and easy to use! Note: This part can be found in the Electromechanical Eagle library under ‘Battery18650’. Documents: Datasheet Product Video " ...

Battery Holder - 1x18650 (board mount)
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Price: $6.16
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Sparkfun Item #: PRT-14963 -

"Keystone Electronics 18650 Battery Holders are ideal for 3.7V, high energy, lower weight mobile electronics, industrial, and telecomm applications that have circuit protection to prevent battery damage. The 18650 battery holders are engineered to withstand the rigors of abuse and recharging cycles associated with the 18650 Lithium-ion cell usages. The holders feature snap-in PC contacts to assure stability during wave soldering and are clearly marked with polarity identification to assure...

Battery Holder - 1xAA (PTH)
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Price: $0.87
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Sparkfun Item #: PRT-07949 -

"PCB mount clip to hold a AA battery. Sold in single units, you’ll need two. These work great for small, low power applications that need a battery to run. Low cost and easy to use! Documents: Datasheet "

Battery Holder - 1xAAA (PTH)
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Price: $0.87
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Sparkfun Item #: PRT-12718 -

"PCB mount clip to hold a AAA battery. Sold in single units, you’ll need two for each battery. These work great for small, low power applications that need a battery to run. Low cost and easy to use! Documents: Datasheet "

Battery Holder - 2x18650 (board mount)
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Price: $10.33
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Sparkfun Item #: PRT-14964 -

"Keystone Electronics 18650 Battery Holders are ideal for 3.7V, high energy, lower weight mobile electronics, industrial, and telecomm applications that have circuit protection to prevent battery damage. The 18650 battery holders are engineered to withstand the rigors of abuse and recharging cycles associated with the 18650 Lithium-ion cell usages. The holders feature snap-in PC contacts to assure stability during wave soldering and are clearly marked with polarity identification to assure...

Battery Holder - 2x18650 (wire leads)
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Price: $2.61
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Sparkfun Item #: PRT-12900 -

"This is an incredibly simple two cell 18650 Battery Holder. When someone thinks of 18650 Cells they tend to think of flashlights first, which is fair since that is what they have been primarily used for. However, with this battery holder you will gain the ability to incorporate 18650 cells into applications like robotics or prototyping by simply dropping one into this device and attaching the leads, that’s it. Every 18650 Battery Holder is equipped with two 6" cables for power and...

Battery Holder - 2xAAA with Cover and Switch
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Price: $2.61
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Sparkfun Item #: PRT-14219 -

"This 2xAAA battery holder puts a nice finishing touch on your battery-powered project. This holder features a sliding, removable cover as well as an ON/OFF switch that can be used to control power to your project. The leads are about 150mm long, and the last 5mm of them are tinned. Features: 63 x 25 x 15mm "

Battery Holder - 4xAA Square
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Price: $3.39
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Sparkfun Item #: PRT-00552 -

"Simple 4 Cell AA Battery holder with 5" tinned leads, square configuration."

Battery Holder - 4xAA to Barrel Jack Connector
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Price: $4.33
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Sparkfun Item #: PRT-09835 -

"This is a simple 4 cell AA battery holder. The 5 inch cable is terminated with a standard 5.5x2.1mm, center positive barrel jack connector. The connector mates with the barrel jack on the Arduino (among a number of other products) allowing you to easily make your project battery powered. Note: the average voltage regulator has about 1V of dropout (but can vary greatly). This pack, with normal alkaline batteries, will output ~5.5V causing a normal 5V board to run at around 4 to 4.5V. This...

Battery Holder 2xAA with Cover and Switch
Price: $2.61
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Sparkfun Item #: PRT-09547 -

"This 2xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, sliding cover, which is secured with a small phillips head screw. Another bonus is the ON/OFF switch which can be used to control power to your project. The leads are about 150mm, and the last 5mm of them are tinned. Dimensions: 67.9 x 32.8 x 18.25mm"

Battery Holder 2xAA with Cover and Switch - JST Connector
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Price: $2.61
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Sparkfun Item #: PRT-09925 -

"This 2xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, sliding cover, which is secured with a small Phillips head screw. Another bonus is the ON/OFF switch which can be used to control power to your project. The leads are about 150mm and are terminated with a JST-XH (2.50mm pitch) connector. Dimensions: 67.9 x 32.8 x 18.25mm"

Battery Holder 2xAAA with Cover and Switch
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Price: $2.61
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Sparkfun Item #: PRT-09543 -

"This 2xAAA battery holder puts a nice finishing touch on your battery powered project. This holder features a sliding, removable cover as well as an ON/OFF switch which can be used to control power to your project. The leads are about 150mm long, and the last 5mm of them are tinned. Dimensions: 63 x 25 x 15mm"

Battery Holder 3xAA with Cover and Switch
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Price: $3.39
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Sparkfun Item #: PRT-10891 -

"This 3xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, sliding cover, which is secured with a small phillips head screw. Another bonus is the ON/OFF switch which can be used to control power to your project. The leads are about 150mm, and the last 5mm of them are tinned. Dimensions: 68.5 x 47.5 x 19.6mm"

Battery Holder 4xAA with Cover and Switch
Price: $3.39
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Sparkfun Item #: PRT-12083 -

"This 4xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, sliding cover, which is secured with a small phillips head screw. Another bonus is the ON/OFF switch which can be used to control power to your project. The leads are about 150mm, and the last 5mm of them are tinned."

Battery Holder with Switch - 2 x AA
Price: $1.00
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Elecrow Item #: EL-PSB00202B -

    The 2 x AA Battery Holder with Switch puts a nice finishing touch on your battery powered project. This holder features a removable sliding cover which is secured with a small phillips head screw. Another bonus is the ON/OFF switch which can be used to control power to your project. The leads are about 145mm, and the last 5mm of them are tinned. It is series connection.Specification 2 AA batteries With a cover and fixed screw With a ON/OFF switch ...

Battery Holder with Switch - 3 x AA
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Price: $1.81
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Elecrow Item #: EL-PSB00302B -

    The 3 x AA Battery Holder with Switch puts a nice finishing touch on your battery powered project. This holder features a removable sliding cover which is secured with a small phillips head screw. Another bonus is the ON/OFF switch which can be used to control power to your project. The leads are about 145mm, and the last 5mm of them are tinned. It is series connection.SpecificationBattery Type : AABattery Qty : 3With Cover : YESWith Switch : YESHolder color :...

Battery Holder with Switch - 3 x AAA
Price: $1.67
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Elecrow Item #: EL-PSB00303B -

    The 3 x AAA Battery Holder with Switch puts a nice finishing touch on your battery powered project. This holder features a removable sliding cover which is secured with a small phillips head screw. Another bonus is the ON/OFF switch which can be used to control power to your project. The leads are about 145mm, and the last 5mm of them are tinned. It is series connection.SpecificationBattery Type : AAABattery Qty : 3With Cover : YESWith Switch : YESHolder color :...

Battery Holder With Switch - 4 x AA
Price: $2.00
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Elecrow Item #: EL-PSB00402B -

    The 4 x AA Battery Holder with Switch puts a nice finishing touch on your battery powered project. This holder features a removable sliding cover which is secured with a small phillips head screw. Another bonus is the ON/OFF switch which can be used to control power to your project. The leads are about 145mm, and the last 5mm of them are tinned. It is series connection.Specification 4 AA batteries With a cover and fixed screw With a ON/OFF switch ...

Beam Attachment Blocks - 4 pack
Price: $8.68
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Sparkfun Item #: ROB-12492 -

"These beam attachment blocks make it possible to connect two Actobotics aluminum beams together or to create simple joint attachment points for mountable channels. These blocks come in packs of 4 and each offers one 6-32 tapped hole 0.30" deep and one 0.14" diameter thru-hole for your mounting applications. Documents: SketchUp Part Product Page (585403) " ...

Beam Crossover Adapter
Price: $5.20
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Sparkfun Item #: ROB-12486 -

"These beam crossover adapters from are prefect for joining Actobotics aluminum beams or beam blocks to different Actobotics parts to form rigid, yet movable joints or creating complex structures. Every crossover adapter has four 6-32 thru-holes to provide you with multiple mounting options. Documents: SketchUp Part Product Page (585490) " ...

Big Dome Pushbutton - Blue
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Price: $20.78
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Sparkfun Item #: COM-11274 -

"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 Bulb holder is easy to install or remove 3 Terminals Button Actuator microswitch included Microswitch reliability tested to 10,000,000...

Big Dome Pushbutton - Green
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Price: $20.78
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Sparkfun Item #: COM-11275 -

"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 Bulb holder is easy to install or remove 3 Terminals Button Actuator microswitch included Microswitch reliability tested to 10,000,000...

Big Dome Pushbutton - Red
Price: $20.78
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Sparkfun Item #: COM-09181 -

"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 Bulb holder is easy to install or remove 3 Terminals Button Actuator microswitch included Microswitch reliability tested to 10,000,000...

Binding Post - Black
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Price: $0.61
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Sparkfun Item #: PRT-09740 -

"This is a black insulated binding post. These binding posts do accept banana plugs, and are a great way to connect single-wire leads. The colored cap screws up and down, and is designed to clamp on the connecting wire. These binding posts are sold individually. We also carry a similar red binding post."

Binding Post - Red
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Price: $0.61
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Sparkfun Item #: PRT-09739 -

"This is a red insulated binding post. These binding posts do accept banana plugs, and are a great way to connect single-wire leads. The colored cap screws up and down, and is designed to clamp on the connecting wire. These binding posts are sold individually. We also carry a similar black binding post."

Black Chicken Head Knob - 14x20mm
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Price: $1.65
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Sparkfun Item #: COM-10000 -

"Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 0.25" shaft with a set screw. The main body of these knobs have a 14mm, but extend to 32mm overall. They also have a brass insert for a tighter fit with the shaft. Dimensions: 14mm high 20mm diameter 6mm depth for shaft "

Black Knob - 15x19mm
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Price: $1.65
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Sparkfun Item #: COM-09998 -

"Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 0.25" shaft with a set screw. Dimensions: 15mm high 19mm diameter "

Black Metal Knob - 14x24mm
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Price: $2.61
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Sparkfun Item #: COM-10002 -

"Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 0.25" shaft. The knob slides onto the potentiometer and holds tightly with a strong friction fit. The main body of these knobs is metal with a plastic insert. The outside is knurled for precise adjustment. Dimensions: 14mm high 24mm diameter "

Blackberry Trackball
Price: $8.61
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Sparkfun Item #: COM-09308 -

"This is a tiny trackball akin to those found on a number of Blackberry models (8100, 8300, 8320, 8800, 8830, etc). Each of the four spindles have a tiny circular magnet on each end. Great when paired with very small SMD Hall effect sensors. Ball is clear to allow for LEDs placed underneath to light up the ball. Features: Center select button 360° direction Dimensions: 9x11mm Documents: Blackberry Teardown Inside the Blackberry (BOM) " ...

bladeRF x40
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Price: $876.46
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Sparkfun Item #: WRL-14041 -

"The bladeRF x40 is an affordable USB 3.0 Software-Defined Radio (SDR) designed to allow students and RF enthusiasts to explore wireless communication, and to provide professionals with a versatile COTS waveform development platform. The bladeRF x40 is a great next step after using an SDR like the HackRF One, especially with the built-in FPGA providing you with more user-defined options. Out of the box, the bladeRF can tune from 300MHz to 3.8GHz without the need for extra boards. Through open...

Blower - Squirrel Cage (12V)
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Price: $8.61
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Sparkfun Item #: COM-11270 -

"This DC Blower really moves some air! Pulling about 1Amp @ 12VDC, this blower is rated at 16CFM (although it seems like more to us). We’ve used this blower to build small hovercrafts and to cool off on a hot day, they’re also handy for inflating “transforming” e-textiles garments! Features: Rated Voltage: 6-12VDC Rated Current: 1Amp Rated Airflow: 16CFM Rated Power: 10W Outlet Diameter: 33mm Fan Speed: 3000-3500rpm " ...

BNC Connector - Right Angle
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Price: $4.35
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Sparkfun Item #: PRT-10550 -

"BNC connectors are ideal for quick connects to audio coax and high-frequency signal lines. This is a right-angle connector and comes with a lock washer and nut. Documents: Dimensional Drawing "

Breadboard - Classic
Price: $17.30
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Sparkfun Item #: PRT-00112 -

"Your first exposure to electrical engineering - the bread board. Who knew it would bring so much frustration? This is your standard solderless breadboard - three binding posts, two power buses, black aluminum plate backing. It works with a wide variety of wire gauges (29-20 AWG). Check out our Unregulated Power Supply Tutorial! Note: The power rails are unbroken on both sides. Dimensions: Board: 165x56x8.5 mm Aluminum Plate: 183x95x1.5 mm " ...

Breadboard - Full-Size (Bare)
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Price: $10.35
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Sparkfun Item #: PRT-12615 -

"Description: This is your tried and true full size solderless breadboard! It has 2 split power buses, 10 columns, and 63 rows - with a total of 830 tie in points. All pins are spaced by a standard 0.1". The two sets of five columns are separated by about 0.3", perfect for straddling a DIP package over. The board accepts wire sizes in the range of 20-29AWG. This board also has a self-adhesive on the back. The boards also have interlocking parts, so you can hook as many together as you’d...

Breadboard - Giant
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Price: $34.69
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Sparkfun Item #: PRT-12614 -

"Description: This is one giant solderless breadboard! It has 7 power buses, 40 columns, and 63 rows - with a total of 3220 tie in points. All pins are spaced by a standard 0.1". The two sets of five columns are separated by about 0.3", perfect for straddling a DIP package over. The board accepts wire sizes in the range of 20-29AWG. This board also has 4 binding posts, a black aluminum plate backing, and 4 rubber standoffs to keep your breadboard suspended safely on your workstation....