SparkFun Electronics
SparkFun has been helping turn ideas into reality – whether you’re creating a smart weather station, exploring the frontier of machine learning, building a robot for school or prototyping your first (or tenth) product. No matter your vision or skill level, our open source components, resources and online tutorials are designed to broaden access to innovative technology and make the road to a finished project shorter. We're here to help you start something.
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Cherry MX Switch Breakout
Cherry MX Keyswitches are top-of-the-line mechanical keyboard switches. They’re satisfyingly “clicky”, reliable up to tens-of-millions of key presses, and a standard in gaming and programming keyboards across the globe. With the SparkFun Cherry MX Switch Breakout we have made the switches more easily adaptable to breadboard or perfboard-based projects. The Cherry MX Switch Breakout is a perfect prototyping tool for projects ranging from a single-key user-input to fully-custom 101-key keyboards.
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CO₂ Humidity And Temperature Sensor
SCD41 (Qwiic)
The SCD41 from Sensirion is a high quality Photoacoustic based CO₂ sensor capable of detecting 0 to 40000ppm with high accuracy over 400-5000ppm ±(40ppm+5%). In order to improve accuracy the SCD41 has integrated temperature and humidity sensing built-in. For additional accuracy the SCD41 also accepts ambient pressure readings!
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CO₂ Humidity And Temperature Sensor
SCD40 (Qwiic)
The SCD40 from Sensirion is a high quality Photoacoustic based CO₂ sensor capable of detecting 0 to 40000ppm with the best accuracy over 400-2000ppm ±(40ppm+5%). In order to improve accuracy the SCD40 has integrated temperature and humidity sensing built-in. For additional accuracy the SCD40 also accepts ambient pressure readings!
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CO₂ Sensor
STC31 (Qwiic)
Do you need to be able to sense CO2 concentrations of up to 100%? If so, the STC31 is the sensor for you! The Sensirion STC31 thermal conductivity sensor has two CO2 measurement ranges: 0 to 25 vol%; and 0 to 100 vol%. The measurement repeatability is 0.2 vol%, with a stability of 0.025 vol% / °C. The measurement accuracy depends on the measurement range: 0.5 vol% + 3% measured value; 1 vol% + 3% measured value.
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FreeSoC2 Development Board
PSoC5LP
This is the FreeSoC2 Development Board, SparkFun’s take on the PSoC5LP ARM Cortex. The PSoC (Programmable System-on-Chip) brings together features of the programmable devices and microcontroller-type systems-on-chips into one package. By placing a programmable fabric between the peripherals and the pins, the FreeSoC2 allows any function to be routed to any pin! Moreover, the onboard PSoC includes a number of programmable blocks, which allow the user to define arbitrary digital and analog circuits for their specific application.
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Inline DC Panel Meter Kit
The Inline DC Panel Meter Kit has all the bits you need to create an elegant, seamless DC volt/ameter. Measuring current usually means interrupting the VCC or ground return path, and 'interrupting' usually means cutting. We designed the kit to be used 'inline' - no need to cut wires just plug your wall wart into the kit and the kit into your target device. We found it to be really handy to measure various 12V devices (routers, WiFi APs, etc) up to 10 amps.
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LilyPad Light Sensor
The LilyPad Light Sensor is a sewable breakout board with an ALS-PT19 light sensor built in and ready to use right away. Each sensor outputs voltage between 0V and 3.3V depending on the level of ambient light shining on it. As more light is applied on the sensor, more current will flow from the board through the signal tab to the microcontroller you connect the sensor to. If the sensor receives no light, no current will flow through it. In a typical indoor lighting situation, the sensor will output around 1 to 2V. Adding this board into your next e-textile or wearable project will really open up the possibilities by being able to incorporate light level sensing capabilities.
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LilyPad Simple Power
The LilyPad Simple Power is a simple e-textile board with a 500mA charge rate that lets you connect and charge a lipo battery and switch it on or off, that's it! We provide you with a JST connector and a slide switch, you supply the battery and sewing skills! With this LilyPad Simple Power, you should find no trouble in added a bit of power to your next wearable circuit.
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LilyPad Temperature Sensor
Detecting temperature changes has never been easier. The MCP9700 is a small thermistor type temperature sensor. This sensor will output 0.5V at 0 degrees C, 0.75V at 25 C, and 10mV per degree C. Doing an analog to digital conversion on the signal line will allow you to establish the local ambient temperature. Detect physical touch based on body heat and ambient conditions with this small sensor.
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PicoBuck LED Driver
The PicoBuck LED Driver is an economical and easy to use driver that will allow you to control and blend three different LEDs on three different channels. By default, each channel is driven at 330mA; that current can be reduced by either presenting an analog voltage or a PWM signal to the board. Version 12 of the board adds a solderable jumper that can be closed to increase the maximum current to 660mA. The new voltage regulator also increased the voltage rating on the various components on the board, allowing it to be used up to the full 36V rating of the AL8860 part.
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Pocket AVR Programmer
This new version uses an SMD 5x2 header. This is a simple to use USB AVR programmer. It is low cost, easy to use, works great with AVRDude, and is tested extensively on a Windows desktop. Based on Dick Streefland's USBtiny and Limor Fried's USBtinyISP. This is a low-cost programmer designed for those on a tight budget.
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PoE To USB Power Supply
It can be difficult to get a wall-wart where you need it. The promise of PoE (power over ethernet) is great, but what if your device doesn't use ethernet? Perhaps you could mess with power injectors, but what if you've already got PoE available on your network? The PoE to USB Power Supply is like a USB wall wart for PoE. Get a PoE hub, run ethernet wherever you need it, plug the PoE to USB Power Supply in and you'll have 5V at 1A via a USB A connector.
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Pressure Sensor (Qwiic)
MS5637
MEMs based barometric pressure sensors are quite common these days. The Qwiic Pressure Sensor with the MS5637 shines by being the most sensitive barometric pressure sensor we have come across. It is capable of detecting the difference in 13cm of air! And the MS5637 is low cost and easy to use to boot.
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Pro Micro
5V/16MHz
Here at SparkFun, we refuse to leave 'good enough' alone. That's why we're adding to our line-up of Arduino-compatible microcontrollers once more! The Pro Micro is similar to the Pro Mini except with an ATmega32U4 on board. The USB transceiver inside the 32U4 allows us to add USB connectivity on-board and do away with bulky external USB interface.
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Qwiic Humidity
AHT20
The AHT20 humidity sensor is brand new from ASAIR; it measures temperature within a tolerance of ±0.3 °C and relative humidity with ±2% error putting it on the high end of performance, but with relatively low cost!
