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1 Channel RF Remote Control Module AC 110V - 220V
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Price: $18.67
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Elecrow Item #: EL-CRF22001C -

This 1 channel latching relay module whose output is passive output, can be controlled by its 2-button RF wireless controller, when the module is powered on. The module must be equipped with a suitable remote control, it also can drive most of household electrical appliances.Features Able to control various appliances and other equipments with large current Equipped with high-current relay Standard interface that can be controlled directly by microcontroller LED indication for Relay output...

12V DC Fan for 3D Printer- 40x40x7
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Price: $8.87
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Elecrow Item #: EL-P3D5543DF -

This is a small 40x40x10mm fan for 3D printer. The fan has a DC brushless motor, with an operating voltage of 12V.FeaturesWoring Voltage: 12V Dimension: 40 x 40 10 mm

2 Channels IR Reflective Sensor(TCRT5000)
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Price: $11.67
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Elecrow Item #: EL-SPS25003S -

This2 Channels IR Reflective Sensors(TCRT5000) includes 2 professional digital IR reflecitive sensors and a mainboard to handle the 2 channel signals. These sensors can detects tiny line and is suitable for line finder such as helping a robot car folllow a black line on white background or vice versa. You can also adjust the potentiometer on the mainboard with a crosshead screwdriver to adjust the measuring range.The infrared diode will emmitting the infrared continutelly when the module...

2 In 1 TF Cards Dual System Switcher for Raspberry Pi
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Price: $26.37
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Elecrow Item #: EL-RPA05036T -

This 2IN1 Two TF cards commutator is specially designed for Raspberry pi B+/2B/3B with double switch systems. You could enjoy the convenience of using two TF cards at the same time to transfer to different systems for playing at the poking of the switch. Moreover if you could change the dial switch to arduino or SCM GPIO controlled, it could help you realize wireless/ remote/ infrared remote control system etc. Note: It should be used when off power or its system will be damaged when on power...

2.4G 4dBi WiFi Antenna With Cover
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Price: $3.50
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Elecrow Item #: EL-WAW24040A -

This is a 2.4G 4dBi WiFi Antenna with ipex13 for DIY projects.Electrical CharacteristicsFrequency 2400 ~ 2500 MHz S.W.R. Antenna Gain 4dBi Impedance 50 Ohm Environmental Operation Temperature - 40 \xb0C ~ + 65 \xb0C Storage Temperature - 40 \xb0C ~ + 80 \xb0C ...

2.4GHz Duck Antenna RP-SMA
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Price: $13.12
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Sparkfun Item #: WRL-00145 -

"2.4GHz Duck Antenna 2.2dBi with Reverse Polarized - SMA RF connector. Perfect for prototyping with our RF ICs. 50 ohm impedance. 4" long. The FCC is moving towards Part 15 compliance. All this means is that all the SMA RF connectors are changing gender. Really annoying for those of us who need to mate an antenna to an RF device. The FCC gender change was instituted to prevent home users from damaging RF equipment (think home WiFi) when screwing on an antenna. If all antennas are female, there...

2.4GHz Duck Antenna RP-SMA - Large
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Price: $16.42
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Sparkfun Item #: WRL-00558 -

"Need range? 2.4GHz Large Duck Antenna 5dBi with Reverse Polarized - SMA RF connector. Perfect for prototyping with our RF ICs. 50 ohm impedance. This antenna mates nicely with the Reverse Polarized SMA Connector. Dimensions: 0.5x7.7" Documents:Datasheet"

2.54mm Standard Computer/Circuit Board Shunts Short Jumper Caps (100pcs Pack)
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Price: $0.90
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Elecrow Item #: EL-CCC01505C -

Jumper Cap also known as short circuit block, which is an activity component consisted of the outer insulating plastics sphere and the inner conductive material. It is mainly used as a small switch for controlling the current on a circuit board, also can be used to connect two jumper pins just plug it on the jumper pin. In addition, we call it ‘ON’ if the jumper cap is button up the jumper pin and the current is passed, else called ‘OFF’ that the circuit is in off state.SpecificationsColour:Bla...

2004 Smart LCD Controller With Adapter For RepRap Ramps 1.4 3D P
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Price: $34.98
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Elecrow Item #: EL-P3D002004DK -

This Smart Controller contains a SD-Card reader, an rotary encoder and a 20 Character x 4 Line LCD display. You can easy connect it to your Ramps board using the "smart adapter" included. After connecting this panel to your Ramps you don\'t need your pc any more, the Smart Controller supplies power for your SD card. Further more, all actions like calibration, axes movements can be done by just using the rotary encoder on the Smart Controller. Print your 3D designs without PC, just with a...

20mm Square 8*8 LED Matrix - Bi-Color Red/Green
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Price: $4.64
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Elecrow Item #: EL-MAT02020D -

This is a small sized dual-color LED Matrix. This display has both bright-red and bright-green LEDs packed into a 20mm x 20mm dot matrix display. Great for displaying text or creating bizarre lighting patterns.Specification

2500 mAh NiMH Battery - AA
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Price: $4.87
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Sparkfun Item #: PRT-00335 -

"2500mAh 1.2V Nickel Metal Hydride rechargeable ‘AA’ batteries. NiMH technology provides all the benefits of NiCads without the toxic ingredients and without the memory effect problem! 2500 mAh is a large capacity cell perfect for handheld, RF, and digital camera applications. We use these in everything! 26 grams per cell. Note: This item is non-returnable. If this item arrives damaged or is not functioning properly, please do not hesitate to contact us to see if further actions...

3-Axis MEMS Accelerometer - MMA8452Q
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Price: $4.92
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Sparkfun Item #: COM-10953 -

"The MMA8452Q is a smart low-power, three-axis, capacitive MEMS accelerometer with 12 bits of resolution. This accelerometer is packed with embedded functions with flexible user programmable options, configurable to two interrupt pins. Embedded interrupt functions allow for overall power savings relieving the host processor from continuously polling data. The MMA8452Q has user selectable full scales of ±2g/±4g/±8g with high pass filtered data as well as non filtered data...

32u4 with A6 GPRS GSM Board
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Price: $47.78
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Elecrow Item #: EL-ACM32406G -

The 32U4 with A6 GSM/GPRS Board is based on mega32U4 and A6 GSM/GPRS module. It can be used to call and seed text messages, via GPRS to upload data to server. At the same time it leads to an analog interface, an IIC interface and 2 digital interface. which you can connect to other module more easily.Remote control and data acquisition will be more convenient.It is worth mentioning that this module can be powered by battery, and comes with a battery charging circuit, some IOT projects will make...

3D Printer Heater 19V@38W
Retail: $3.50
Price: $2.00
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DFRobot Item #: FIT0282 -

3D Printer Heater 19V@38W Introduction This is a Heater used to heating the hot end which is very popular for 3D printers such as Reprap, Ultimaker and Makerbot. It has a right angle which make it easy to be installed at the hot end. 1.6m wire is long enough to suit most situation.  The bright red color gives a bright warning of its heat!      Specification  Voltage:19V Power:38W Wire length:1.6m head diameter:5.8mm-6mm Head lenght:25mm Shipping List Heater x1 ...

4 Pin Crowtail Cable(5 PCS)
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Price: $3.03
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Elecrow Item #: EL-CPC03044C -

4-Channel Capacitive Touch Module
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Price: $11.62
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Elecrow Item #: EL-SCT2244PH -

This Capacitive Touch Module uses the touch-sensing IC TTP224 to add capacitive touch to your project . Just power with 2.4 to 5.5VDC and touch the pad to activate the sensor. These touch switches interface easily to any project - with or without a microcontroller. When a capacitive load (such as a human hand) is in close proximity to the sense-pad, the sensor detects the change in capacitance and activates the switch. Custom sense-pads can be made from nearly any conductive material and these...

4WD Mini Robot Mobile Platform Kit FT-MC-003-KIT
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Price: $27.60
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Elecrow Item #: EL-RPM14750P -

Mini Robot Mobile Platform used 4 DC motor gear box to drive. The spec the same as FS90R - - High speed up to 100RPM, 1.3kg.cm at 800mA. Four plastic wheels are press-fit onto DC motor gear box output gear shaft, and easy to make a nice drive solution for small robots.The wheels have silicone tires and the diameter is 60mm (2.36″) . This Mini Robot Mobile Platform frame make with 5051 aluminum alloy and anodize color (The factory default is orange. Can do other color if need. ). Mini Robot...

50 Channel D2523T Helical GPS Receiver
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Price: $143.66
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Sparkfun Item #: GPS-09566 -

50 Channel D2523T Helical GPS Receiver Description: The D2523T is a compact GPS smart-antenna engine board, which comes equipped with a Sarantel GeoHelix high-gain active antenna and GPS receiver circuits. The module is based around the high performance 50-channel u-blox 5 platform. The omni-directional antenna provides great sensitivity, even when you don't have a clear view of the sky. Whether this receiver is in your pocket or under your car seat, you are likely to pickup a rock...

50pcs DC12V 12mm WS2811 Pixel Node Smart LED
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Price: $35.00
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Elecrow Item #: EL-DLD10012W -

look at these colorful LEDs, what a beautiful visual experience! Let’s think about what can make by using it. Signs or advertising screen ? May be more wide range of applications! Let your imagination fly and create more wonderful things. The led adopts perfect optical design, big view angle, waterproof, high brightness and light transmittance, energy saving and environmental friendly. It can be cut each one, easy to operate and repair.FeaturesAdpots high quality round hat RGB LED as...

5V DC-DC Booster- CE8301
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Price: $2.29
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Elecrow Item #: EL-PCH8301C -

This 5V output DC-DC booster uses the mini PFM DC/DC IC CE8301 to get a stable 5V output voltage with 0.9~5V input voltage. There is also a Type-A USB connector on the board, so this module can power other USB device directly with a USB cable, especilly suitable for protable device and and Arduino projects that needs to collect power outdoors. Features On-board Type-A USB connector Wide Input Voltage Range On-board LED Indicator Dimension: 34 mmx 16.2 mmDownloadCE8301 Datasheet&Schematic ...

7-Segment Display - 4-Digit (Blue)
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Price: $4.17
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Sparkfun Item #: COM-09481 -

"This is a basic, 4-digit 7-segment display - blue in color. It has a common anode. The display features one decimal point per digit, and individually controllable apostrophe and colon points. The LEDs have a forward voltage of 3.4VDC and a max forward current of 20mA. The hardware interface is sixteen (two rows of eight) through-hole pins. We carry this same display in red, green, and yellow. Dimensions: Overall Display: 40.18 x 12.8 mm (1.58 x 0.50") Digit Height: 10mm (0.39") Documents:...

7-Segment Display - 4-Digit (Kelly Green)
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Price: $3.25
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Sparkfun Item #: COM-09482 -

"This is a basic, 4-digit 7-segment display - green in color. It has a common anode. The display features one decimal point per digit, and individually controllable apostrophe and colon points. The LEDs have a forward voltage of 2.1VDC and a max forward current of 20mA. The hardware interface is sixteen (two rows of eight) through-hole pins. We carry this same display in red, yellow, and blue. Dimensions: Overall Display: 40.18 x 12.8 mm (1.58 x 0.50") Digit Height: 10mm (0.39") Documents:...

7-Segment Display - 4-Digit (Red)
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Price: $3.25
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Sparkfun Item #: COM-09483 -

"This is a basic, 4-digit 7-segment display - red in color. It has a common anode. The display features one decimal point per digit, and individually controllable apostrophe and colon points. The LEDs have a forward voltage of 2.1VDC and a max forward current of 20mA. The hardware interface is sixteen (two rows of eight) through-hole pins. We carry this same display in yellow, green, and blue. Dimensions: Overall Display: 40.18 x 12.8 mm (1.58 x 0.50") Digit Height: 10mm (0.39") Documents:...

7-Segment Display - 4-Digit (Yellow)
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Price: $3.25
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Sparkfun Item #: COM-09480 -

"This is a basic, 4-digit 7-segment display - yellow in color. It has a common anode. The display features one decimal point per digit, and individually controllable apostrophe and colon points. The LEDs have a forward voltage of 2.1VDC and a max forward current of 20mA. The hardware interface is sixteen (two rows of eight) through-hole pins. We carry this same display in red, green, and blue. Dimensions: Overall Display: 40.18 x 12.8 mm (1.58 x 0.50") Digit Height: 10mm (0.39") Documents:...

7-Segment Display - 6.5" (Red)
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Price: $24.92
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Sparkfun Item #: COM-08530 -

"No really - it’s 6 inches (153mm) tall! This very large 7-segment display can be seen from a hundred feet away. So many projects to try, so little time… Documents:Datasheet"

7Pin Dual-Female Jumper Wire - 200mm (1pc)
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Price: $1.40
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Elecrow Item #: EL-PCW20071 -

This is 200mm long 7pin female to female jumper wire which uses high quality 26# line. Great for jumping from board to board. These are simple jumper wires used on standard 2.54mm(0.1") breakaway headers.

A Couple Of Test Hooks
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Price: $1.17
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Elecrow Item #: EL-PBO30201B -

A staple for the electrical engineer. There are two color of a couple. Package list A couple of Alligator Clips (Red & Black).

Acrylic Enclosure Kit_A for Raspberry Pi B+
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Price: $22.87
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Elecrow Item #: EL-RA000078AA -

Keep your Raspberry Pi computer safe and sound in this lovely clear acrylic enclosure. This enclosure is special designed for the Raspberry Pi Model B+. It comes as 6 pieces of acrylic boards and some other modules such DC fan, heat sink and even screwdriver, to help user better experience with the Raspberry Pi Model B+. This ingenious design has no screws or standoffs and there are cute little feet cut into the sides so that it stands up above your desk. There are engraved labels on all the...

ADH8066 Evaluation Board
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Price: $86.37
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Sparkfun Item #: CEL-10741 -

ADH8066 Evaluation Board Description: The evaluation board for the ADH8066 Cell Module breaks out all the pins to the module and provides you with the necessary support hardware to get you up and running. The ADH8066 board attaches to any USB port and appears as a standard com port. Power up the board with 6-12 VDC, turn on the module, and you can start sending and receiving AT commands via HyperTerminal or your favorite terminal program. The board comes assembled as shown so you don't...

Allen Screw Kit
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Price: $1.58
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Sparkfun Item #: TOL-11731 -

"This pack of 4-40 screws comes with a matching hex key. Each screw is 10mm in length. These are left over production stock from the original version of the BigTime Watch Kit so they won’t be around for long. Includes: 4x screws 1x hex key Dimensions: 10mm long"

Analog Joystick
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Price: $3.45
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Elecrow Item #: EL-CBS04005AJ -

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.

Arduino Industrial 101
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Price: $68.07
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Sparkfun Item #: DEV-14134 -

"The Arduino Industrial 101 is a WiFi evaluation board for the Arduino 101 LGA module based on a MIPS Linux processor. With the Industrial 101 you will possess a fantastic addition to the Arduino family and be able to easily create IoT projects without the need for multiple shields. Similar to the Arduino Yun (in a small form-factor), the Industrial 101 integrates an ATmega32U4 and the Atheros AR9331 SoC to make a dependable evaluation resource! The onboard ATmega32u4 microcontroller has been...

Ardumoto- Motor Driver Shield
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Price: $32.20
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Elecrow Item #: EL-AMS00298SP -

This is a motor shield for Arduino that will control two DC motors. Based on the L298 H-bridge, the Ardumoto can drive up to 2 amps per channel. The board takes its power from the same Vin line as the Arduino board, includes blue and yellow LEDs to indicate active direction, and all driver lines are diode protected from back EMF. The new version of this shield allows for either 3.3 or 5v logic, a separate and more robust VIN connection, and the PWM input has moved to pin 3. Control for motor...

ATmega128RFA1 Development Board
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Price: $83.25
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Sparkfun Item #: DEV-11197 -

"The ATmega128RFA1 is a portmanteau of sorts – two separate components combined to form one device; half microcontroller, half RF transciever. ATmega128RFA1 is an IEEE 802.15.4 compliant single-chip, combining the industry- leading AVR microcontroller and best-in-class 2.4GHz RF transceiver providing industry’s highest RF performance for single-chip devices, with a link budget of 103.5dBm. The ATmega128RFA1 features Wake-on Radio, 32-bit MAC symbol counter, temperature sensor,...

ATMEGA328P-AU
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Price: $4.50
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Elecrow Item #: EL-DTA00525C -

ATMEGA328P-AU is a high-performance, low-power consumption 8 bit microcontroller, and its core controller is AVR. It has 32KB of flash memory, and if the chip is power down, the data can still be retained.The architecture of the chip is advanced RISC, and can reset by power the chip. The number of digital-to-analog converters is eight and it has 23 input/output line. There are three types of chip interfaces: I2C,SPI and USART. The chip has an internally calibrated oscillator and has six sleep...

Audio Cable 2.5mm 8"
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Price: $3.25
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Sparkfun Item #: CAB-10159 -

"This is a simple 8" long 2.5mm audio cable. It is terminated with a 2.5mm audio plug on one side and unterminated with bare wires on the other end. These are to be used with the ModKit shields. The 2.5mm plug is the same one used by many devices. A lot of older cell phones used this size for the headsets. It is the audio jack size generally used on a lot of portable electronics that didn’t use the traditional 3.5mm headphone jack. Also, the Rebel line of Canon dSLRs use this jack for...

AVR ISP Shield - PTH Kit
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Price: $34.49
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Sparkfun Item #: DEV-11168 -

AVR ISP Shield - PTH Kit Description: Did you know that your Arduino can spawn other Arduinos? Don't worry, it can't do it autonomously so you won't wind up with a replicator situation (-gate, not -Trek). The point is, the ArduinoISP sketch allows your Arduino to act as a programmer. You can use this awesome power to burn bootloaders onto ATMega chips, turning them into Arduino-compatible microcontrollers! In the past, this required a breadboard and a whole mess...

Barometric Pressure Sensor - BMP085 Breakout
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Price: $31.15
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Sparkfun Item #: SEN-11282 -

Barometric Pressure Sensor - BMP085 Breakout Description: This is a breakout board for the Bosch BMP085 high-precision, low-power digital barometer. The BMP085 offers a measuring range of 300 to 1100 hPa with an accuracy down to 0.2 hPa in ultra-high resolution mode. It's based on piezo-resistive technology for high accuracy, ruggedness and long term stability. These come factory-calibrated, with the calibration coefficients already stored in ROM. Writing your own code for it requires...

Barometric Pressure Sensor - MPL115A1
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Price: $8.25
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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...

Barrel Jack Extension Cable - M-F (3 ft)
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Price: $2.89
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Sparkfun Item #: COM-11706 -

"Do you fear that your power may not be “far reaching” enough? How would another 3' work for you? Okay, so it doesn’t sound very dramatic, but sometimes an extra 3' of power cable is exactly what your project needs. Don’t hack apart a nice clean barrel jack connection just because it won’t reach, this male-to-female barrel jack extension cable will make the reach. This cable is terminated with 5.5x2.1mm barrel connectors, one male and one female, and fits most of...

Battery Holder 2xAAA with Cover and Switch
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Price: $2.48
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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"

Blue LED Waterproof Flexi-Strip - 60 LED-1m
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Price: $13.77
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Availability: Out of Stock
Elecrow Item #: EL-DLS06001B -

The LED strip Uses trinity-SMD LED as lighting source, with low voltage with resistance and IC constant current made the shining stable, bright and uniform. FPC circuit board made it easily to bend, Besides, self adhesive back makes it convenient to stick them to any flat surface.Five meters each roll, the price is based on one meter for length, and there are other 4 colors in stock: Red, Yellow, Green and White.Specificationcolor: blue10.0mm wide, 3.2mm thick, 50mm long per segment (3...

Bluetooth - LiPo Add-On for Makey Makey
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Price: $51.79
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Sparkfun Item #: WRL-11378 -

Bluetooth & LiPo Add-On for Makey Makey Description: The MaKey MaKey is really cool, but wouldn't it be cooler if it wasn't tethered to your computer? There's only one way to find out: Go wireless. Our Bluetooth & LiPo Add-On for MaKey MaKey frees your MaKey invention from the bonds of USB wired connection. Data is passed over a Bluetooth HID connection to your Bluetooth enabled computer which will recognize it as a Bluetooth wireless keyboard. Power is handled through a...

Bluetooth Mate
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Price: $112.30
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Sparkfun Item #: WRL-09358 -

Bluetooth Mate Description: The Bluetooth Mate is very similar to our BlueSMiRF modem, but it is designed specifically to be used with our Arduino Pros and LilyPad Arduinos. These modems work as a serial (RX/TX) pipe, and are a great wireless replacement for serial cables. Any serial stream from 9600 to 115200bps can be passed seamlessly from your computer to your target. We've tested these units successfully over open air at 350ft (106m)! Bluetooth Mate has the same pin out as the...

Bluetooth Modem - BlueSMiRF RP-SMA
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Retail: $123.09
Price: $23.00
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Sparkfun Item #: WRL-00158 -

Bluetooth Modem - BlueSMiRF RP-SMA Description: The BlueSMiRF RPSMA is the latest Bluetooth wireless serial cable replacement from Spark Fun Electronics! These modems work as a serial (RX/TX) pipe. Press the 'A' character from a terminal program on your computer and an 'A' will be pushed out the TX pin of the Bluetooth® module. Any serial stream from 9600 to 115200bps can be passed seamlessly from your computer to your target, from modem to module, even to any...

Bluetooth Module Breakout - Roving Networks (RN-41)
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Price: $103.66
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Sparkfun Item #: WRL-10559 -

Bluetooth Module Breakout - Roving Networks (RN-41) Description: This is a simple breakout for the Roving Networks Bluetooth module. All pertinent pins are broken out and labeled. This new version's headers are unpopulated. Check below for appropriate headers. The module from Roving Networks is powerful, small, and very easy to use. This Bluetooth module is designed to replace serial cables. The Bluetooth stack is completely encapsulated. The end user just sees serial characters...

Breadboard - Mini Modular (Black)
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Price: $6.52
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Sparkfun Item #: PRT-12047 -

"This black Mini Breadboard is a great way to prototype your small projects! With 170 tie points there’s just enough room to build and test simple circuits; They’re also great for breaking out DIP package ICs to jumper wires! If you run out of room, no worries, these mini breadboards can be snapped together to form larger stretches of board. It has a peel and stick adhesive backing as well as two mounting holes for M2 screws so you can anchor it down. Note: These will not connect...

Breadboard - Mini Modular (Blue)
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Price: $6.52
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Sparkfun Item #: PRT-12045 -

"This blue Mini Breadboard is a great way to prototype your small projects! With 170 tie points there’s just enough room to build and test simple circuits; They’re also great for breaking out DIP package ICs to jumper wires! If you run out of room, no worries, these mini breadboards can be snapped together to form larger stretches of board. It has a peel and stick adhesive backing as well as two mounting holes for M2 screws so you can anchor it down. Note: These will not connect...