Sparkfun

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US$6.93
The SparkFun Photon Wearable Shield makes it easy to add the WiFi enabled Photon to any wearables project. Each pin on the Photon is broken out into large sewing pins. Use conductive thread to make your next wearables projects. The large pins are also great for using conductive paint to create any project that needs WiFi.
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US$6.52
This is a breakout board for the WS2812B RGB LED. The WS2812B is actually an RGB LED with a WS2811 built right into the LED! All the necessary pins are broken out to 0.1" spaced headers for easy bread-boarding.
Delivery within 2-3 weeks
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US$84.86
The WAV Trigger is a unique high-fidelity polyphonic audio player with surprising capabilities. Supporting up to 2048 uncompressed 16-bit, 44.1kHz wav files – the same quality as an audio CD – the WAV Trigger can play and mix up to 14 stereo tracks simultaneously and independently, with very low latency.
Delivery within 2-3 weeks
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US$27.58
This is essentially a breakout and development board for the ESP8266 WiFi SoC. Why the name? We lovingly call it the Thing due to it being the perfect foundation for your Internet of Things. Over the past year, the ESP8266 has been a growing star among IoT or WiFi-related projects.
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US$4.09
This is a small board the allows you to add resistors to a 10-position rotary switch (COM-13253), turning it into a potentiometer with 10 discrete steps.
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US$20.93
This is a very simple board that takes a 6-12V input voltage and outputs a selectable 5V or 3.3V regulated voltage. All headers are 0.1" pitch for simple insertion into a breadboard.
Delivery within 2-3 weeks
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US$20.93
The EasyDriver is a simple to use stepper motor driver, compatible with anything that can output a digital 0 to 5V pulse (or 0 to 3.3V pulse if you solder SJ2 closed on the EasyDriver). It requires a 6V to 30V supply to power the motor and can power any voltage of stepper motor.
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US$14.64
This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the ‘alarm’ pin will go low. This unit works great from 5 to 12V. You can also install a jumper wire past the 5V regulator on board to make this unit work at 3.3V. Sensor uses 1.6mA@3.3V.
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US$7.43
This is a breakout PTH soldering kit for for the RFP30N06LE N-Channel MOSFET. This kit is extremely simple to assemble with only 10 pins to solder.
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US$28.81
This is a breakout for the VL6180 distance sensor. Unlike most distance sensors that rely reflected light intensity or reflected angles to determine range, the VL6180 uses a precise clock to measure the time it takes light to bounce back from a surface.
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US$8.47
This is the SparkFun RJ45 MagJack Breakout, a simple board that will provide you with a way to put an ethernet port into your breadboard. The SparkFun RJ45 MagJack Breakout is the same one found in our very own mbed Starter Kit and breaks out each pin from the ethernet jack.
Delivery within 2-3 weeks
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US$26.13
This is a stepper motor driver board for bi-polar stepper motors up to a max 2A/phase. It is based on the Allegro A4988 stepper driver chip. It’s the next version of the popular Easy Driver board.
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US$2.45
This is a simple three wire cable. Each cable is 6" long and is great for jumping from board to board or just about anything else. There is a 3-pin JST connector with 0.1" spacing on both ends.
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US$9.73
This Micro Gripper is capable of opening 2.75" wide max, has an overall body length of 1.7" long with a 1.3" wide servo housing body, and offers three 6-32 mounting thru-holes along the edges of the servo housing.
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US$9.73
This Micro Gripper is capable of opening 2.75" wide max, has an overall body dimension of 2.6" long by 1.3" wide, and offers the 0.77" hub pattern for easy mounting on Actobotics components.
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US$72.73
This is an all-in-one kit that offer everything you need to get your next RFID project off the ground. This kit includes our USB RFID Reader, ID-12LA RFID module, and two 125kHz RFID cards. We’ve done away with the annoying clamshell and now offer this in the same type of box as the rest of our kits.
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US$43.49
These pliers are capable of crimping very small 0.25 - 1.5mm crimp pins and 28-20 AWG wires together. All you need to do is press the handles together with enough force and the pliers will release, once this happens you know your crimping is done! These work well with JST PH, SH, SHL, and ZH series pins.
Delivery within 2-3 weeks
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US$24.20
This is the SparkFun USB to Serial Breakout for the FT232RL, a small board with a built in USB to serial UART interface. This little breakout is built around the FT232RL IC from FTDI, with an internal oscillator, EEPROM, and a 28-pin SSOP package this is a serious little chip.
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US$51.49
This is an involved PTH soldering kit that allows you to quickly and accurately dial in a specific resistance value between 0 and 999,990 Ω, in 10 Ω increments. The concept is simple, a decade box is a tool that contains resistors of many values that can be accessed via mechanical switches.
Delivery within 2-3 weeks
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US$69.93
The SparkFun Mini Inventor’s Kit (SMIK) is a great way to get started with programming and hardware interaction with the Arduino programming language. This mini SIK includes everything you need to complete 8 circuits that will teach you how to blink an LED, read sensors, drive servos, and more. You don’t need any previous programming or electronics experience to use this kit.
Delivery within 2-3 weeks
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US$11.83
This 5 pack of red 3 Watt aluminum backed PCBs is sure to shed a lot of light on any project you add it to. 
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US$13.98
This is the Large Solder-able Breadboard. A bare PCB that is the exact size as our full-size breadboard with the same connections to pins and power rails. This board is especially useful for preserving a prototype or experiment you just created on a solderless breadboard by soldering all the pieces in place.
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US$34.93

Kit Includes: 5x Mini Photocell, 5x 10k Trimpot, 2x Gear Hobby Motor, 2x Generic Servo (Sub-Micro Size), 2x Bag of 25 10kOhm Resistor, 2x Bag of 25 330Ohm Resistor, 5x 30 Pack of Jumper Wires, 10x 1N4148 Diode, 1x Assorted LED (20 Pack) - (5 Red, 5 Blue, 5 Yellow, 5 Green). 1x Simon Buttons (4 Pack) - (1 Red, 1 Blue, 1 Yellow, 1 Green).

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US$39.13
The FTDI SmartBasic is a variation on our classic FTDI Basic board which allows you to connect a second device to the hardware serial port on an Arduino Pro, Pro Mini, or other USB-less board without compromising the ability to bootload code from the Arduino IDE.
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US$8.33
This Power Resistor Kit comes with 5 each of 5 different 10 Watt resistor values including 1, 2, 4, 8, and 16 Ohms. These resistors are capable of dissipating large amounts of power without damaging themselves. This kit is perfect for testing projects that require large amounts of power while only requiring low resistance.
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US$1.25
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.
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US$1.33
This 2x20 shrouded header has the same number and spacing of pins as the Raspberry Pi B+ so you can easily connect via ribbon cable to the low-level peripherals and get hacking! This through-hole header has 40 0.1"-spaced pins and is keyed for polarity.
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US$6.93
This is 12AWG stranded red wire with a flexible silicone jacket. This wire is perfect for soldering and connecting any project in which you need a durable, super flexible wire.
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US$27.93
This is a 12 wire slip ring, a remarkably simple electromechanical assembly that allows electronic signals to be passed through its rotating innards. Commonly, you’d find slip rings in wind turbines, radar antennae, or anything else that requires continuous 360° rotation while maintaining an electrical connection.
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US$20.93
This is a 6 wire slip ring, a remarkably simple electromechanical assembly that allows electronic signals to be passed through its rotating innards. Commonly, you’d find slip rings in wind turbines, radar antennae, or anything else that requires continuous 360° rotation while maintaining an electrical connection.
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US$39.63
This is a 3 wire slip ring, a remarkably simple electromechanical assembly that allows for electronic signals and power to be passed through its rotating innards. Commonly, you’d find slip rings in wind turbines, radar antennae, or anything else that requires continuous 360° rotation while maintaining an electrical connection.
Delivery within 2-3 weeks
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US$22.74
This breakout is capable of constantly monitoring the current your sensor is using, is able to add it up, and will give you a pulse each time a given amount of amp-hours have been used. When used effectively and if you start with a full battery, you’ll always know exactly how much of it is left!
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