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LM386 Audio Amplifier with 200x Gain Amplification
US$4.61
This low power device requires around 2mA to operate making this product the best choice for battery oriented projects. The unit can operate from 4-12 VDC allowing users to interface to Arduino board to direct connection to a 12v supply. The board also comes with the ability to increase the gain upto 200x the sample rate and provides a low distortion. Use the potentiometer onboard to spin clockwise to increase audio.
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MOD-100 FTDI USB 2.0 to TTL RS485 Serial Converter Adapter
US$9.89
This module takes care of the pesky handshake protocol required to give you an easy plug and play experience. This module can also convert to RS485 interface offering control over 32 devices such as surveillance cameras, video capture device, fingerprint reader, CNC machines and more.
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3176-ADA Adafruit Feather M0 RFM69 Packet Radio - 868 or 915 MHz
US$35.42
This is our take on an microcontroller with a RFM69HCW packet radio transceiver plus built in USB and battery charging. Its an Adafruit Feather M0 with a 900MHz radio module cooked in! We have other boards in the Feather family, check'em out. This is the 900 MHz radio version, which can be used for either 868MHz or 915MHz transmission/reception - the exact radio frequency is determined when you load the software since it can be tuned around dynamically.
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3006-ADA Adafruit I2S 3W Class D Amplifier Breakout - MAX98357A
US$9.45
We now have an all in one digital audio amp breakout board that works incredibly well with the Raspberry Pi! If you're looking for an easy and low cost way to get you digital sound files bumpin' then the MAX08357 I2S Amp Breakout is for you. It takes standard I2S digital audio input and, not only decodes it into analog, but also amplifies it directly into a speaker. Perfect for adding compact amplified sound, it takes 2 breakouts (I2S DAC + Amp) and combines them into one.
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MOT-HG7881 Dual H-Bridge DC Motor Drive Controller Board for Arduino
US$6.29
There are two HG7881 mounted onto this module, allowing users to have access to two H-Bridges. Using the H-Bridge allows users to connect and control the spin direction of the motors. You can connect a maximum of two DC motors or have four motors with one side spinning the same direction. This module is designed to work with Arduino Microcontroller.
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BB-ESP8266 Breakout Board For ESP8266
US$1.53
If you are planning on purchasing an ESP8266 you will often find yourself wondering on how to interface this component into your projects or breadboard. This breakout board changes the small spacing on the ESP to a wider spacing compatible for the breadboards. It also has a trace on the back that allows users to surface mount voltage regulators to protect their ESPs. It also comes with header pins that require soldering.
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ARD-612 Prototyping Shield for Arduino with mini Breadboard
US$3.84
This is a prototyping shield with a mini breadboard for Arduino. This general purpose Prototype shield is fantastic for wiring your circuits onto a shield permanently by soldering it or wiring using the provided breadboard to create your very own plug and play Arduino shield. There are two buttons (one connected to reset, the other label SW1), through holes for icsp and pads for a 14 pin surface mount IC. It also comes with two LEDs (one connected to pin 13, another connected labelled LED2). The shield will work with UNO, Diecimila and Duemilanove Arduinos (Leonardo will receive support for SPI ,IOREF, SDA,SCL pins due to pin mapping on the device.)
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ARD-613 Arduino MEGA Prototyping shield with breadboard
US$8.39
This is a protoboard that stacks on to the Arduino Mega - It brings all the data, I/O 5V and Ground pins to the shield and provides a nice surface for soldering your components. Stacking headers are included so you can stack additional shields onto this one. 
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WAVE-152 Raspberry Pi Case Black
US$10.71
Black plastic case that fits both Raspberry PI 2 and 3. Easy snap fit assembly. Includes four self-tapping screws to secure the Raspberry Pi to the case. Provides access to connectors including 4x USB, Ethernet, Micro USB power, Composite video/Audio, HDMI and the MicroSD card. Dimensions: 90x70x25mm (LxWxH).
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WAVE-11638 RPi Relay Board for Raspberry Pi
US$26.59
The RPi Relay Board gives your Pi the ability to control high voltage/high current devices, easily makes normal home appliances become intelligent. Supports Raspberry Pi A+/B+/2B/3B. High quality relays, loads up to 250VAC/5A, 30VDC/5A. Photo coupling isolation, prevent interference from high voltage circuit. Onboard LEDs for indicating relays status. Relay control jumper, allows to control the relays by custom pins other than the default pins. Comes with development resources, including examples in wiringPi, WebioPi, shell, python, and bcm2835.
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SNSRKIT3G260 Sensor Kit w/ Electron + Data, 3G (Americas/Aus)
US$209.93
Quantify the world! The Sensor Kit is a curated mix of awesome sensors and electrical components specifically selected by the engineers on the Particle Team. If you want to measure temperature, sense loudness, measure distances, capture motion, or detect noxious gases, the Sensor Kit has you covered. Whether you’re building a connected robot or measuring the world around you, the Sensor Kit is the place to start. The Sensor Kit comes with a Particle SIM card with service in more than 100 countries worldwide, and includes 3 months of Particle's 1MB monthly data plan for IoT devices. All Electrons also include Particle's development tools, access to a cloud platform with messaging, and a SIM dashboard for managing and updating your new connected hardware. The Electron is a GSM-only device, and does not support CDMA networks.
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LED-BB-01 5050 SMD RGB LED Breakout Board
US$2.79
This is a simple breakout board for an integrated RGB LED module. Simple and easy to use as the board comes pre-soldered with the required resistors, all you need to do is interface the cables with a female jumper wire to your 5v microcontroller. This module has 3 separate LED's (Red, Green & Blue) which can be individually driven by applying a voltage to the appropriate module pin. By mixing different color intensities an almost unlimited range of colors can be created.
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LED-BB-10 Addressable single WS2812 LED module, pack of 10
US$5.59
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 solder pads for easy wiring. Several of these breakouts can even be chained together to form a display or an addressable string.
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ARD-UNIVERSAL SunFounder Universal Kit V2.0 for Arduino
US$27.99
This Arduino Introductory Kit contains the basic components, all explained by an excellent 35 page color manual,  required to initiate you into the wonderful world of Arduino. This kit does not contain an Arduino UNO.
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PI-SENSE-HAT, Raspberry Pi Sense HAT V2
US$60.13
The Raspberry Pi Sense HAT V2 is the perfect product to learn about programming and how we interact with the world around us. With its full array of sensors, the Sense HAT was originally developed for use on the International Space Station, as part of the educational Astro Pi programme run by the Raspberry Pi Foundation in partnership with the European Space Agency.
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