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936-ADA Panel Mount USB Cable - B Female to Mini-B Male
936-ADA Panel Mount USB Cable - B Female to Mini-B Male
US$6.92
This handy USB extension cable will make it easy for you to enclose a device that has a mini-B USB type port. We think this would be most handy when putting a Teensy, FTDI friend, USB LiPo charger, USB Boarduino, etc into a box! 
Delivery within 2-3 weeks
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260-ADA USB cable - A/MiniB - 3ft
260-ADA USB cable - A/MiniB - 3ft
US$4.98

This here is your standard A-miniB USB cable, for USB 1.1 or 2.0. Perfect for connecting a PC to your Teensy, USB Lipo charger (among other things). Approximately 3 feet / 1 meter long. 

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241 USB game pad with accelerometer project pack
241 USB game pad with accelerometer project pack
US$78.75

Build a custom USB gamepad that has an accelerometer mouse inside! This project pack comes with: SNES controller, Teensy, Accelerometer, 5' mini-B USB cable, 8" of ribbon cable, 2 squares of foam tape. 

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3231-ADA Adafruit LoRa Radio FeatherWing - RFM95W 900 MHz
US$34.92
This is the LoRa 9x @ 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. These are +20dBm LoRa packet radios that have a special radio modulation that is not compatible with the RFM69s but can go much much farther. They can easily go 2 Km line of sight using simple wire antennas, or up to 20Km with directional antennas and settings tweakings.
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176 Sensor pack 900
176 Sensor pack 900
US$61.25

This is an assortment of the most common sensors used in electronics. 9 sensors and 3 additional components to interface with the 'analog world'.

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1733-ADA Anemometer Wind Speed Sensor w/Analog Voltage Output
1733-ADA Anemometer Wind Speed Sensor w/Analog Voltage Output
US$78.67
This well made anemometer is designed to sit outside and measure wind speed with ease. To use, connect the black wire to power and signal ground, the brown wire to 7-24VDC (we used 9V with success) and measure the analog voltage on the blue wire. The voltage will range from 0.4V (0 m/s wind) up to 2.0V (for 32.4m/s wind speed).
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3328-ADA Adafruit PT100 RTD Temperature Sensor Amplifier - MAX31865
US$21.79
For precision temperature sensing, nothing beats a Platinum RTD. Resistance temperature detectors (RTDs) are temperature sensors that contain a resistor that changes resistance value as its temperature changes, basically a kind of thermistor. In this sensor, the resistor is actually a small strip of Platinum with a resistance of 100 ohms at 0°C, thus the name PT100. Compared to most NTC/PTC thermistors, the PT type of RTD is much most stable and precise (but also more expensive) PT100's have been used for many years to measure temperature in laboratory and industrial processes, and have developed a reputation for accuracy (better than thermocouples), repeatability, and stability.
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381-ADA Waterproof DS18B20 Digital temperature sensor + extras
381-ADA Waterproof DS18B20 Digital temperature sensor + extras
US$17.42
This is a pre-wired and waterproofed version of the DS18B20 sensor. Handy for when you need to measure something far away, or in wet conditions. While the sensor is good up to 125°C the cable is jacketed in PVC so we suggest keeping it under 100°C.
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562 Panel Mount 10K potentiometer (Breadboard Friendly) - 10K Linear
562-ADA Panel Mount 10K potentiometer (Breadboard Friendly) - 10K Linear
US$1.67
This potentiometer is a two-in-one, good in a breadboard or with a panel. Its a fairly standard linear taper 10K ohm potentiometer, with a grippy shaft. Its smooth and easy to turn, but not so loose that it will shift on its own.
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1778-ADA Analog Output K-Type Thermocouple Amplifier - AD8495 Breakout
1778-ADA Analog Output K-Type Thermocouple Amplifier - AD8495 Breakout
US$18.49
This is a very simple sensor to use, and if your microcontroller has analog input capability, you'll be ready to go really fast!
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2652-ADA Adafruit BME280 I2C or SPI Temperature Humidity Pressure Sensor
US$25.82
This precision sensor from Bosch is the best low-cost sensing solution for measuring humidity with ±3% accuracy, barometric pressure with ±1 hPa absolute accuraccy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with  ±1 meter or better accuracy!
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789-ADA Adafruit PN532 NFC/RFID Controller Shield for Arduino + Extras
789-ADA Adafruit PN532 NFC/RFID Controller Shield for Arduino + Extras
US$61.52
We've taken our popular Adafruit PN532 breakout board and turned it into a shield - the perfect tool for any 13.56MHz RFID or NFC application. The Adafruit NFC shield uses the PN532 chip-set (the most popular NFC chip on the market) and is what is embedded in pretty much every phone or device that does NFC. This chipset is very powerful, and can pretty much do it all, such as read and write to tags and cards, communicate with phones (say for payment processing), and 'act' like a NFC tag. While the controller has many capabilities, our Arduino library currently only supports reading/writing tags, and does not support phone-to-shield communication, tag emulation (which requires an external 'secure element' only available from NXP) or other more advanced features at this time.
Delivery within 2-3 weeks
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1438-ADA Adafruit Motor/Stepper/Servo Shield for Arduino v2 Kit - v2.3
1438-ADA Adafruit Motor/Stepper/Servo Shield for Arduino v2 Kit - v2.3
US$34.92
Instead of a L293D darlington driver, we now have the TB6612 MOSFET drivers with 1.2A per channel current capability (you can draw up to 3A peak for approx 20ms at a time). It also has much lower voltage drops across the motor so you get more torque out of your batteries, and there are built-in flyback diodes as well. Instead of using a latch and the Arduino's PWM pins, we have a fully-dedicated PWM driver chip onboard. This chip handles all the motor and speed controls over I2C. Only two data pins (SDA & SCL in addition to the power pins GND & 5V) are required to drive the multiple motors, and since it's I2C you can also connect any other I2C devices or shields to the same pins. This also makes it drop-in compatible with any Arduino, such as the Uno, Due, Leonardo and Mega R3.
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269 Thermocouple Amplifier (MAX6675) breakout board - v1.0
269 Thermocouple Amplifier MAX31855 breakout board (MAX6675 upgrade) - v2.0
US$21.67

The MAX31855K does everything for you, and can be easily interfaced with any microcontroller, even one without an analog input. This breakout board has the chip itself, a 3.3V regulator with 10uF bypass capacitors and level shifting circuitry, all assembled and tested.

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1919-ADA Female-Female 2.54 to 2.0mm Jumper Wires x 40
1919-ADA Female-Female 2.54 to 2.0mm Jumper Wires x 40
US$12.17
Instead of going from 0.1"/2.54mm pitch headers to breadboard or something like that, these are 2.54mm to 2.0mm!
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2011-ADA Lithium Ion Battery - 3.7v 2000mAh
US$21.88
Lithium ion polymer batteries are thin, light and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 2000mAh. If you need a larger (or smaller!) battery, we have a full range of LiPoly batteries.
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3141-ADA Premium Female/Female Raw Custom Jumper Wires - 40 x 6" (150mm)
US$5.17
Our Raw F/F Jumper Wires are perfect for making custom jumper wire sets for wire harnesses or jumpering between headers on PCB's. These premium jumpers are a little over 6" (150mm) long and come in a 'strip' of 40 (4 pieces of each of the ten colors).
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1782-ADA MCP9808 High Accuracy I2C Temperature Sensor Breakout Board
1782-ADA MCP9808 High Accuracy I2C Temperature Sensor Breakout Board
US$7.63
This I2C digital temperature sensor is one of the more accurate/precise we've ever seen, with a typical accuracy of ±0.25°C over the sensor's -40°C to +125°C range and precision of +0.0625°C.
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3290-ADA Platinum RTD Sensor - PT100 - 3 Wire 1 meter long
US$22.67
For precision temperature sensing, nothing beats a Platinum RTD. Resistance temperature detectors (RTDs) are temperature sensors that contain a resistor that changes resistance value as its temperature changes, basically a kind of thermistor. In this sensor, the resistor is actually a small strip of Platinum with a resistance of 100 ohms at 0°C, thus the name PT100. Compared to most NTC/PTC thermistors, the PT type of RTD is much most stable and precise (but also more expensive) PT100's have been used for many years to measure temperature in laboratory and industrial processes, and have developed a reputation for accuracy (better than thermocouples), repeatability, and stability.
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419 Membrane Matrix Keypad 3x4
419 Membrane Matrix Keypad 3x4
US$6.92
This keypad has 12 buttons, arranged in a telephone-line 3x4 grid. It's made of a thin, flexible membrane material with an adhesive backing (just remove the paper) so you can attach it to nearly anything. The keys are connected into a matrix, so you only need 7 microcontroller pins (3-columns and 4-rows) to scan through the pad.
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1335-ADA Peltier Thermo-Electric Cooler Module+Heatsink Assembly - 12V 5A
1335-ADA Peltier Thermo-Electric Cooler Module+Heatsink Assembly - 12V 5A
US$61.17
The 12V Peltier module is mounted onto a 12V heatsink and fan assembly with thermal paste and an aluminum clamp. Simply connect to 12V 5A+ power supply and you will see frost appear on the aluminum plate within a minute.
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1899-ADA Adafruit HTU21D-F Temperature & Humidity Sensor Breakout Board
1899-ADA Adafruit HTU21D-F Temperature & Humidity Sensor Breakout Board
US$26.17
It's summer and you're sweating and your hair's all frizzy and all you really want to know is why the weatherman said this morning that today's relative humidity would max out at a perfectly reasonable 52% when it feels more like 77%. Enter the HTU21D-F Temperature + Humidity Sensor - the best way to prove the weatherman wrong! 
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2465-ADA PowerBoost 1000 Charger - Rechargeable 5V Lipo USB Boost @ 1A - 1000C
US$34.92
PowerBoost 1000C is the perfect power supply for your portable project! With a built-in load-sharing battery charger circuit, you'll be able to keep your power-hungry project running even while recharging the battery! This little DC/DC boost converter module can be powered by any 3.7V LiIon/LiPoly battery, and convert the battery output to 5.2V DC for running your 5V projects.
Delivery within 2-3 weeks
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746-ADA Adafruit Ultimate GPS Breakout - 66 channel w/10 Hz updates - Version 3
US$61.52
It's got everything you want and more: -165 dBm sensitivity, 10 Hz updates, 66 channels. 5V friendly design and only 20mA current draw. Breadboard friendly + two mounting holes. RTC battery-compatible. Built-in datalogging. PPS output on fix. Internal patch antenna + u.FL connector for external active antenna. Fix status LED. New! Version 3 comes with the latest module which has external antenna support and Pulse-Per-Second output.
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1063 Electret Microphone Amplifier - MAX4466 with Adjustable Gain
1063 Electret Microphone Amplifier - MAX4466 with Adjustable Gain
US$12.17
Add an ear to your project with this well-designed electret microphone amplifier. This fully assembled and tested board comes with a 20-20KHz electret microphone soldered on.
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1762-ADA 5050 LED breakout PCB - 10 pack!
1762-ADA 5050 LED breakout PCB - 10 pack!
US$8.67
Each item comes with ten PCBs and each PCB is identical. PCB is .8mm/.03" thick, with ~10mm/0.4" spacing between the two rows.
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374-ADA DS18B20 Digital temperature sensor + extras
374-ADA DS18B20 Digital temperature sensor + extras
US$7.00
These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter.
Delivery within 2-3 weeks
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270-ADA Thermocouple Type-K Glass Braid Insulated - K
270-ADA Thermocouple Type-K Glass Braid Insulated - K
US$15.33
Features: K type thermocouple with glass over-braiding. Good up to 500 °C (900 °F)! Color-coded wires. 1 meter long (a little more than 3 feet). Best used with a thermocouple amplifier such as the MAX6675 or MAX31855. 
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385 DHT22 temperature-humidity sensor + extras
385 DHT22 temperature-humidity sensor + extras
US$21.88
It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin (no analog input pins needed). Its fairly simple to use, but requires careful timing to grab data.
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1893-ADA MPL3115A2 - I2C Barometric Pressure/Altitude/Temperature Sensor
1893-ADA MPL3115A2 - I2C Barometric Pressure/Altitude/Temperature Sensor
US$15.45
This pressure sensor from Freescale is a great low-cost sensing solution for precision measurement of barometric pressure and altitude. The MPL3115A2 has a typical 1.5 Pascal resolution, which can resolve altitude at 0.3 meters (compare to the BMP180 which can do 0.17m).
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3142-ADA Premium Male/Male Raw Jumper Wires - 40 x 6" (150mm)
US$6.92
Our Raw Male/Male Jumper Wires are perfect for making a custom jumper wire sets for wire harnesses or jumpering between headers on PCB's. These premium jumpers are a little over 6" (150mm) long and come in a 'strip' of 40 (4 pieces of each of the ten colors).
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2471-ADA Adafruit HUZZAH ESP8266 Breakout
US$15.33

The ESP8266 processor from Espressif is an 80 MHz microcontroller with a full WiFi front-end (both as client and access point) and TCP/IP stack with DNS support as well. While this chip has been very popular, its also been very difficult to use. The Adafruit HUZZAH ESP8266 breakout is what we designed to make working with this chip super easy and a lot of fun. We took a certified module with an onboard antenna, and plenty of pins, and soldered it onto our designed breakout PCBs.

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