Sparkfun

US$9.95
The Teensy is an amazing development platform that allows you to get more computing power than an Arduino Uno, and in less space. The Teensy 3.1 XBee Adapter allows you to connect your Teensy with the tried and true XBee series to provide you with a great solution to any project that requires a decently ranged no-frills wireless serial link.
Delivery within 1-2 weeks
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US$51.95
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 1-2 weeks
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US$125.95
The SparkFun Inventor’s Kit for RedBot is a great way to get started with two motor robotics and sensor integration using the Arduino programming language. The SIK for RedBot includes everything you need to complete nine circuits that will teach you how to drive your RedBot, have it follow lines, control it remotely, and more. This kit doesn’t require previous programming or electronics experience but it is recommended that you possess an understanding of or desire to learn about robotics.
Delivery within 1-2 weeks
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US$9.95
This is a large, custom made PCB that has been specifically designed to be used with and installed into our Big Red Box. This board features a large prototyping area with exactly 1,488 solder points (yes, we counted). With this proto board you will be able to create or incorporate unique projects into a reliably weatherproof enclosure.
Delivery within 1-2 weeks
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US$16.95
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$19.95
This is the newest revision and fixes issues with the last board. This breakout board pairs an SP3485 RS-485 transceiver with an FT232RL USB UART IC to convert a USB stream to RS-485. The SP3485 is a half-duplex transceiver, so it can only communicate one way at a time, but it can reach transmission speeds of up to 10Mbps.
Delivery within 1-2 weeks
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US$2.25
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$54.95
The EasyVR Shield 3.0 is a voice recognition shield for Arduino boards integrating an EasyVR module. It includes all of the features of the EasyVR module in a shield form factor that simplifies connection to the Arduino main board and PC.
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US$14.95
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.
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US$14.95
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$9.95
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.
Delivery within 1-2 weeks
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US$29.95
The Spectrum Shield enables your Arduino with the capability of splitting a stereo audio input into 7-bands per channel. You can then read the amplitude of each channel using the ADC on your Arduino allowing you to control everything from LEDs to motors, pumps to relays, or even fire, all with sound.
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US$4.95
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$29.95
This sensor will measure the filtered and rectified electrical activity of a muscle; outputting 0-Vs Volts depending the amount of activity in the selected muscle, where Vs signifies the voltage of the power source. It’s that easy: stick on a few electrodes (not included), read the voltage out and flex some muscles!
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US$17.95
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.
Delivery within 1-2 weeks
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