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16 Channel Multiplexer
Price: $1.75
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Sparkfun Item #: COM-00299 -

Texas Instruments CD74HC4067 16-Channel multiplexer. What can you do with it? How about taking an analog to digital reading from 16 devices with only 1 ADC channel and 4 control pins. That's right, 16 for the price of 5! 24-Pin SSOP package. Works great with our 28-Pin SSOP to DIP adapters. Documents: Datasheet bildr blog - CD74HC4067 ...

2.4GHz Transceiver IC - nRF24L01+
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Price: $6.44
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Sparkfun 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...

3-Axis Gyro/Accelerometer IC - MPU-6050
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Price: $24.54
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Sparkfun Item #: SEN-10937 -

The MPU-6050 is a serious little piece of motion processing tech! By combining a MEMS 3-axis gyroscope and a 3-axis accelerometer on the same silicon die together with an onboard Digital Motion Processor™ (DMP™) capable of processing complex 9-axis MotionFusion algorithms, the MPU-6050 does away with the cross-axis alignment problems that can creep up on discrete parts. The parts’ integrated 9-axis MotionFusion algorithms can even access external magnetometers or other sensors through an...

ALS-PT19 Light Sensor
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Price: $1.93
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Sparkfun Item #: SEN-12566 -

This tiny little guy is the ALS-PT19, an SMD ambient light sensor that is much smaller than the standard TEMT6000. The ALS-PT19 is capable of taking a voltage supply range of 2.5V to 5.5V and also functions as an NPN transistor. If you are looking for a small and easy to use light sensor, definitely pick up the ALS-PT19! Documents: Datasheet ...

Ambient Light Sensor - TEMT6000x01
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Price: $2.57
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Sparkfun Item #: COM-08348 -

This is a small ambient light sensor that acts as an NPN transistor. The more the sensor is exposed to light, the stronger the base bias. Simple to use! Simple breakout board available below. Documents: Hookup Guide Datasheet

Barometric Pressure Sensor - MPL115A1
Price: $11.28
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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 105°C maximum...

Capacitor 4.7uF - SMD (Strip of 10)
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Price: $4.51
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Sparkfun Item #: COM-15169 -

This is 10 pack of tiny 4.7µF SMD decoupling capacitors. Each of these capacitors offers a DC voltage rating of 16V and a capacitance tolerance of -20% to +80%. Additionally, these capacitors are 1206 sized, are non-polar, and feature an operation temperature rating of −30°C to +85°C. Personally, we prefer to use these little caps on our LuMini LED Rings in larger installations to prevent voltage dips when turning on a large load of LEDs all at once. Includes: 10x Capacitor 4.7µF - SMD...

Dual Axis Gyro - IDG1215
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Price: $42.05
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Sparkfun Item #: COM-09071 -

The IDG-1215 is an integrated dual-axis angular rate sensor (gyroscope). It uses InvenSense’s proprietary and patented MEMS technology with vertically driven, vibrating masses to make a functionally complete, low-cost, dual-axis angular rate sensor. All required electronics are integrated onto a single chip with the sensor. The IDG-1215 gyro uses two sensor elements with novel vibrating dual-mass bulk silicon configurations that sense the rate of rotation about the X- and Y-axis (in-plane...

IR Reflectance Sensor - QRE1113
Price: $3.35
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Sparkfun Item #: COM-09542 -

The QRE1113 is a small IR reflectance sensor. This sensor is often used in line following robots because, if it can sense if a surface is white or black. There are four pins on the QRE1113 - two control the IR emitting LED while the other two are the collector and emitter of a phototransistor. The IR diode has a max forward current of 50mA and operates at 940nm. Breakout boards with analog and digital outputs are also available. Documents: Datasheet Features: Phototransistor output No contact...

MP3 Codec - VS1063
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Price: $17.08
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Sparkfun Item #: COM-11025 -

VS1063 is an easy-to-use, versatile encoder, decoder and codec for a multitude of audio formats. They can be hard to get hold of but we've got them! The VS1063 contains a high-performance, proprietary, low-power DSP core as well as ROM memory, 16KiB instruction RAM and up to 80 KiB data RAM for user applications running simultaneously with any built-in decoder! There's built-in serial control and input data interfaces, up to 12 general purpose I/O pins, a UART, as well as specialized...

Real Time Clock - DS3234
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Price: $17.08
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Sparkfun Item #: COM-10079 -

RTC stands for real time clock folks. The DS3234 is a low-cost, extremely accurate SPI bus RTC with an integrated temperature compensated crystal oscillator (TCXO) and crystal. If you aren't looking to design your own breakout board, never fear, we have you covered with the DeadOn RTC Breakout! Features: Battery Backup Input for Continuous Timekeeping High-precision (±2ppm) Operating Temperature Range 0°C to +70°C Low-Power Consumption Real-Time Clock Counts Seconds, Minutes, Hours, Day, Date,...

RS232 Converter SMD - MAX3232
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Price: $3.35
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Sparkfun 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)

Serial Flash Memory - W25Q32FV (32Mb, 104MHz, SOIC-8)
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Price: $3.22
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Sparkfun Item #: COM-15809 -

The W25Q32FV (32M-bit) Serial Flash memory provides a storage solution for systems with limited space, pins, and power. This small SMD IC series offers flexibility and performance well beyond ordinary Serial Flash devices. They are ideal for code shadowing to RAM, executing code directly from Dual/Quad SPI (XIP) and storing voice, text and data. The W25Q32FV operates on a single 2.7V to 3.6V power supply with current consumption as low as 4mA active and 1µA for power-down. We recommend using...

Triple Axis Accelerometer - ADXL335
Price: $17.08
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Sparkfun Item #: COM-09265 -

The ADXL335 is a small, thin, low power, complete 3-axis MEMS accelerometer with signal conditioned voltage outputs. The product measures acceleration with a minimum full-scale range of ±3 g. It can measure the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion, shock, or vibration. The user selects the bandwidth of the accelerometer using the CX, CY, and CZ capacitors at the XOUT, YOUT, and ZOUT pins. Bandwidths can be selected...

Triple Axis Accelerometer - ADXL345
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Price: $17.08
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Sparkfun Item #: SEN-09045 -

The ADXL345 is a small, thin, low power, three-axis MEMS accelerometer with high resolution (13-bit) measurement up to ±16g. Digital output data is formatted as 16-bit twos complement and is accessible through either a SPI (3- or 4-wire) or I2C digital interface. The ADXL345 is well suited for mobile device applications. It measures the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock. Its high resolution (4mg/LSB)...

USB to Serial IC - CH340E (10 Pack)
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Price: $10.30
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Sparkfun Item #: COM-16278 -

The USB to Serial CH340E IC is a USB bus conversion chip, it can realize USB to UART interface or USB to printer interface. In serial UART mode, CH340E provides common MODEM liaison signal, used to expand UART interface of computer or upgrade the common serial device to USB bus directly. CH340 is a 3x3mm tiny chip comes in MSOP10 package and has 10 pins. The CH340E has a built in crystal. Includes: 10x CH340E USB to Serial IC Features: Full speed USB device interface, compatible with USB...

Voltage Regulator - Adjustable LM1117 SMD
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Price: $2.57
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Sparkfun 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 ...

Voltage Regulator - BD10KA5W (500mA)
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Price: $1.63
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Sparkfun Item #: COM-10827 -

The BD10KA5W is a low-saturation regulator with an output voltage precision of ±1%. It also has built-in overcurrent protection that prevents the destruction of the IC, due to output short circuits and a thermal shutdown circuit. Features: Max Output Current : 500mA Output Voltage Precision : 1.0V ±1% Built-in Overcurrent Protection Circuit Built-in Thermal Shutdown Circuit Shutdown Switch Operating Temperature Range : -40C to +105C Documents: [Datasheet](http://cdn.sparkfun.com/datasheets/Comp...