Adafruit

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US$9.17
Analog Devices, known for their reliable and well-documented sensor chips - has a high precision and high resolution temperature sensor on the market, and we've got a breakout to make it easy to use! The Analog Devices ADT7410 gets straight to the point - it's an I2C temperature sensor, with 16-bit 0.0078°C temperature resolution and 0.5°C temperature tolerance. Wire it up to your microcontroller or single-board computer to get reliable temperature readings with ease The ADT7410 has 2 address pins, so you can have up to 4 sensors on one I2C bus. There's also interrupt and critical-temperature alert pins. The sensor is good from 2.7V to 5.5V power and logic, for easy integration.
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US$15.33
Measure the invisible magnetic fields that surround us, with this wide-range magnetometer. The MLX90393 is a wide range magnetic field sensor, that can measure 16-bits in ranges from ±5mT up to ±50mT in all 3 axes. Compared to most magenetometers, this gives a huge range, which makes it excellent for detecting magnets and magnetic orientation, rather than the Earths magnetic field. (Magnets have a much stronger field that overwhelms most magnetometers that would normally be used for orientation with respect to the North Pole).
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US$49.95
This breakout has a 2.7" tri-color (red, black, and white) display. It has 264x176 black and red ink pixels and a white-ish background. Using our CircuitPython or Arduino libraries, you can create a 'frame buffer' with what pixels you want to have activated and then write that out to the display. Most simple breakouts leave it at that. But if you do the math, 264 x 176 pixels x 2 colors = 11.5 KBytes. Which won't fit into many microcontroller memories. Heck, even if you do have 32KB of RAM, why waste 12KB?
Delivery within 2-3 weeks
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US$44.10
Easy e-paper finally comes to microcontrollers, with this breakout that's designed to make it a breeze to add a tri-color eInk display. Chances are you've seen one of those new-fangled 'e-readers' like the Kindle or Nook. They have gigantic electronic paper 'static' displays - that means the image stays on the display even when power is completely disconnected. The image is also high contrast and very daylight readable. It really does look just like printed paper!
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US$30.73
The latest Raspberry Pi computers come with WiFi and Bluetooth, and now you can add even more radio options with the Adafruit Radio Bonnets! Upgrade your Raspberry Pi with a sub-GHz radio transceiver, so it can communicate over long distances. These bonnets plug right into your Pi and give you long range wireless capabilities to remote nodes that may be battery powered. Or, you can create Internet gateways with ease. You not only get a radio module, but also a 128x32 OLED display for status messages and three buttons you can use for creating a custom user interface or sending test messages. All of the above is supported with our Python libraries so you can send or receive packetized radio data with other matching modules in a network, even craft your own gateway using the Pi's built in networking capabilities.
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US$30.73
The latest Raspberry Pi computers come with WiFi and Bluetooth, and now you can add even more radio options with the Adafruit Radio Bonnets! Upgrade your Raspberry Pi with a sub-GHz radio transceiver, so it can communicate over long distances. These bonnets plug right into your Pi and give you long range wireless capabilities to remote nodes that may be battery powered. Or, you can create Internet gateways with ease. You not only get a radio module, but also a 128x32 OLED display for status messages and three buttons you can use for creating a custom user interface or sending test messages. All of the above is supported with our Python libraries so you can send or receive packetized radio data with other matching modules in a network, even craft your own gateway using the Pi's built in networking capabilities.
Delivery within 2-3 weeks
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US$45.45
Adafruit LoRa Radio Bonnet with OLED - RFM95W @ 915MHz - RadioFruit The latest Raspberry Pi computers come with WiFi and Bluetooth, and now you can add...
Delivery within 2-3 weeks
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US$1.93
This cable will let you turn a JST PH 3-pin cable port into 3 individual wires with high-quality 0.1" female header sockets on the end. Great for extending or connecting sensors.
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US$1.93
This cable will let you turn a JST PH 3-pin cable port into 3 individual wires with high-quality 0.1" male header plugs on the end. Great for extending and connecting sensors.
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US$38.43
This device is a 12VDC red alert tower light with buzzer, with which you can monitor the status of a machine or project. They are easy to attach with mounting holes, and you can rotate the light mount, so it can be horizontal, vertical or any angle in between (180 rotation). Alert tower lights are really easy to use. The brown wire is the common +12V power line, then the other wires are connected to ground to activate the LED light or buzzer. The red wire controls the red LED light and the orange wire is what controls the buzzer which will sound continuously when the wire is grounded.
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US$18.48
We've got 2.6mm thickness EL wire, with a clear coat, pre-cut and soldered to a standard quick-connect EL wire. It is made with the latest technology and twice as bright as 'standard' 2.3mm EL - running it at 1.5KHz/90V it emits 150 cd/m^2 or light and a half-life (50% brightness reduction) after 3000 hours of continuous use. Draws about 10mA per meter. The capacitance is about twice that of 'standard' EL, 11 nF/m so if you're using an inverter, it will drive only half as much high brightness wire as standard.
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US$18.48
We've got 2.6mm thickness EL wire, with a blue coat, pre-cut and soldered to a standard quick-connect EL wire. It is made with the latest technology and twice as bright as 'standard' 2.3mm EL - running it at 1.5KHz/90V it emits 82 cd/m^2 or light and a half-life (50% brightness reduction) after 3000 hours of continuous use. Draws about 10mA per meter. The capacitance is about twice that of 'standard' EL, 11 nF/m so if you're using an inverter, it will drive only half as much high brightness wire as standard.
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US$18.48
We've got 2.6mm thickness EL wire, with a lime green coat, pre-cut and soldered to a standard quick-connect EL wire. It is made with the latest technology and twice as bright as 'standard' 2.3mm EL - running it at 1.5KHz/90V it emits 123 cd/m^2 or light and a half-life (50% brightness reduction) after 3000 hours of continuous use. Draws about 10mA per meter. The capacitance is about twice that of 'standard' EL, 11 nF/m so if you're using an inverter, it will drive only half as much high brightness wire as standard.
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US$18.48
We've got 2.6mm thickness EL wire, with a orange coat, pre-cut and soldered to a standard quick-connect EL wire. It is made with the latest technology and twice as bright as 'standard' 2.3mm EL - running it at 1.5KHz/90V it emits 70 cd/m^2 or light and a half-life (50% brightness reduction) after 3000 hours of continuous use. Draws about 10mA per meter. The capacitance is about twice that of 'standard' EL, 11 nF/m so if you're using an inverter, it will drive only half as much high brightness wire as standard.
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US$18.48
We've got 2.6mm thickness EL wire, with a pink coat, pre-cut and soldered to a standard quick-connect EL wire. It is made with the latest technology and twice as bright as 'standard' 2.3mm EL - running it at 1.5KHz/90V it emits 27 cd/m^2 or light and a half-life (50% brightness reduction) after 3000 hours of continuous use. Draws about 10mA per meter. The capacitance is about twice that of 'standard' EL, 11 nF/m so if you're using an inverter, it will drive only half as much high brightness wire as standard.
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US$18.48
We've got 2.6mm thickness EL wire, with a red coat, pre-cut and soldered to a standard quick-connect EL wire. It is made with the latest technology and twice as bright as 'standard' 2.3mm EL - running it at 1.5KHz/90V it emits 32 cd/m^2 or light and a half-life (50% brightness reduction) after 3000 hours of continuous use. Draws about 10mA per meter. The capacitance is about twice that of 'standard' EL, 11 nF/m so if you're using an inverter, it will drive only half as much high brightness wire as standard.
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US$3.85
The pins are normally open (disconnected) and when the button is pressed they are momentarily closed. They come in a pack of 20, they're pretty handy so you'll want to keep them around.
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US$3.00
This Mini Illuminated Momentary Power Button is an adorable breadboard-friendly tactile switch that has a built-in LED. It provides a simple way to add a tactile switch and a colorful universal power symbol to your project.  The tact switch is about the same size as 6mm tactile switches and can snap into a breadboard. There are an additional two pins that connect to the anode and cathode of a small LED that shines through the top. Note that this is a momentary button, not a on-off switch! Also, the LED is not connected to the switch in any way, and does not include a resistor. You'll need to add your own ~1K resistor and control the LED with a microcontroller pin or whatever you like.
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US$3.00
This Mini Illuminated Momentary Power Button it an adorable breadboard-friendly tactile switch that has a built-in LED. It provides a simple way to add a tactile switch and a colorful universal power symbol to your project.  The tact switch is about the same size as 6mm tactile switches and can snap into a breadboard. There are an additional two pins that connect to the anode and cathode of a small LED that shines through the top. Note that this is a momentary button, not a on-off switch! Also, the LED is not connected to the switch in any way, and does not include a resistor. You'll need to add your own ~1K resistor and control the LED with a microcontroller pin or whatever you like.
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US$42.35
Alert tower lights are really easy to use. The brown wire is the common +12V power line, then the other wires are connected to ground to activate each of the three LED lights: red wire for red light, yellow wire for yellow light and, you guessed it, green wire for green light. The final orange wire is what controls the buzzer which will sound continuously when the wire is grounded. We did notice that you can't have both the yellow and red lamps on at once, and in general its best to only have one lamp lit at a time for max brightness. The buzzer can be turned on whenever, it does not seem to be affected by the lights.
Delivery within 2-3 weeks
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US$29.45
This is the Assembled Adafruit Feather HUZZAH ESP-F v1.1 with headers - our take on an 'all-in-one' ESP-F v1.1 WiFi development board with built in USB and battery charging and ready to go immediately! Its an ESP-F v1.1 WiFi module with all the extras you need. At the Feather HUZZAH's heart is an ESP-F v1.1 WiFi microcontroller clocked at 80 MHz and at 3.3V logic. This microcontroller contains a Tensilica chip core as well as a full WiFi stack. You can program the microcontroller using the Arduino IDE for an easy-to-run Internet of Things core. We wired up a USB-Serial chip that an upload code at a blistering 921600 baud for fast development time. It also has auto-reset so no noodling with pins and reset button pressings.
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US$46.45
For those who want to integrate our awesome Ultimate GPS module into their own projects, we now have the raw sub-module available. Don't be fooled by it's small size, this is a very sensitive, high quality GPS module with all the extras you could want and more at under 6 grams! This module is built around the MTK3339 chipset, a no-nonsense, high-quality GPS module that can track up to 22 satellites on 66 channels, has an excellent high-sensitivity receiver (-165 dB tracking!), and a built in antenna. It can do up to 10 location updates a second for high speed, high sensitivity logging or tracking. Power usage is incredibly low, only 20 mA during navigation.
Delivery within 2-3 weeks
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US$4.24
The buttons screw in place, so you can use with up to ~15mm thick material, and will cover up if the hole if it isn't perfectly round and clean. The action is smooth, without a strong click, yet you can definitely feel when the button is pressed. A tiny micro-switch is pre-installed, with gold plated contacts.
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US$3.85
The buttons screw in place, so you can use with up to ~15mm thick material, and will cover up if the hole if it isn't perfectly round and clean. The action is smooth, without a strong click, yet you can definitely feel when the button is pressed. A tiny micro-switch is pre-installed, with gold plated contacts.
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US$4.24
The buttons screw in place, so you can use with up to ~15mm thick material, and will cover up if the hole if it isn't perfectly round and clean. The action is smooth, without a strong click, yet you can definitely feel when the button is pressed. A tiny micro-switch is pre-installed, with gold plated contacts.
In stock
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US$4.24
The buttons screw in place, so you can use with up to ~15mm thick material, and will cover up if the hole if it isn't perfectly round and clean. The action is smooth, without a strong click, yet you can definitely feel when the button is pressed. A tiny micro-switch is pre-installed, with gold plated contacts.
In stock
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US$3.85
The buttons screw in place, so you can use with up to ~15mm thick material, and will cover up if the hole if it isn't perfectly round and clean. The action is smooth, without a strong click, yet you can definitely feel when the button is pressed. A tiny micro-switch is pre-installed, with gold plated contacts.
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US$26.95
This is the Adafruit METRO with headers.  It comes with headers soldered on.  It's a fully assembled and tested board with through-hole headers attached.  METRO is the culmination of years of playing with AVRs: we wanted to make a development board that is easy to use and is hacker friendly. At the heart is an ATmega328P, with 32KB of flash and 2KB of RAM, running at 16 MHz.
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US$19.25
At the Feather 328P's heart is an ATmega328P clocked at 8 MHz and at 3.3V logic, a chip setup we've had tons of experience with as it's the same as the Pro Mini and similar to the Adafruit Metro 328. This chip has 32K of flash and 2K of RAM, and we paired it with a SiLabs CP2104 to give it USB-to-Serial program & debug capability built in. Works great when you want to keep your classic Arduino code compatibility, but want to use one of our dozens of FeatherWings To make it easy to use for portable projects, we added a connector for any of our 3.7V Lithium polymer batteries and built in battery charging. You don't need a battery, it will run just fine straight from the micro USB connector. But, if you do have a battery, you can take it on the go, then plug in the USB to recharge. The Feather will automatically switch over to USB power when its available. We also tied the battery thru a divider to an analog pin, so you can measure and monitor the battery voltage to detect when you need a recharge.
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US$30.95
Breathe easy with the SGP30 Multi-Pixel Gas Sensor, a fully integrated MOX gas sensor. This is a very fine air quality sensor from the sensor experts at Sensirion, with I2C interfacing and fully calibrated output signals with a typical accuracy of 15% within measured values. The SGP combines multiple metal-oxide sensing elements on one chip to provide more detailed air quality signals. This is a gas sensor that can detect a wide range of Volatile Organic Compounds (VOCs) and H2 and is intended for indoor air quality monitoring. When connected to your microcontroller (running our library code) it will return a Total Volatile Organic Compound (TVOC) reading and an equivalent carbon dioxide reading (eCO2) over I2C.
Delivery within 2-3 weeks
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US$33.81
Aww yeah, it's the Feather you have been waiting for, and now with stacking headers! The HUZZAH32 is our ESP32-based Feather, made with the official WROOM32 module. We packed everything you love about Feathers: built in USB-to-Serial converter, automatic bootloader reset, Lithium Ion/Polymer charger, and just about all of the GPIOs brought out so you can use it with any of our Feather Wings. This version of the ESP32 Feather comes with stacking headers already soldered in. That module nestled at the end of this Feather contains a dual-core ESP32 chip, 4 MB of SPI Flash, tuned antenna, and all the passives you need to take advantage of this powerful new processor. The ESP32 has both WiFi and Bluetooth Classic/LE support. That means it's perfect for just about any wireless or Internet-connected project.
Delivery within 2-3 weeks
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US$30.73
Would you like to learn electronics, with an all-in-one board that has sensors and LEDs built in? Circuit Playground is here - and it's the best way to practice programming on real hardware with no soldering or sewing required! This is the Classic version of Circuit Playground, which comes with an ATmega32u4. It's designed to be used with Arduino IDE and code.orgCS Discoveries only. It even comes with Firmata already programmed in, so you can use it immediately with code.org Discoveries without any preparation or updates.
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