A strain gauge is a type of electronic sensor used to measure force or strain (big surprise there). They are made of an insulating flexible backing with a metallic foil pattern. The resistance of a strain gauge changes when force is applied and the object is deformed along with the foil and this change will give a different electrical output. However, these thin foils are very delicate...

Instead of being a single embedded functional module, Wio Terminal is more of a complete system equipped with Screen + Development Board + Input/Output Interface + Enclosure. Because it uses the SAMD51, it is compatible with Arduino and CircuitPython - using the same Arduino & CircuitPython core we have developed here at Adafruit! Wio Terminal  is an  ATSAMD51-based  microcontroller with wireless connectivity supported...

A nice whoppin' slab of some lovely black acrylic to add some extra diffusion to your LED Matrix project. This material is 2.6mm (0.1") thick and is made of special cast acrylic that makes it perfect for glowy projects, especially matricies or NeoPixels. Unlike smoke or other-tinted acrylic, this material sharpens the pixels, and reduces the glare. You get a great looking display, all colors are vivid and readable indoors and out! We...

Micro SD cards and microcontrollers go together like micro-peanutbutter-and-jelly: SD cards are inexpensive, durable, easy to find at any shop, come in many sizes and can plug into any computer using a common SD card reader. That makes them perfect for microcontroller storage and retrieval - whether it's images, fonts, GIFs, audio files, or sensor logs. Wiring up SD cards when you're starting out is super easy - you just pick up one of...

As technology changes and adapts, so does Adafruit, and speaking of  adapting , this  adapter  has a 2.1mm barrel jack socket and a USB C plug - you could use this to power a USB C device from a common wall adapter. USB C is the latest industry-standard connector for transmitting data  and  power. Like Lightning and MagSafe cables, USB C has no up or down orientation. Plug this adapter onto the end of a 2.1mm 5VDC barrel...

This little buck converter based on the MPM3610 is a marvel, taking up to 21V input and providing a 3.3V output with up to 1.2A current. It's great for supplying power to popular 3.3V voltage circuits from a range of battery or power options.  This chip provides up to 1.2 Amp load current across the entire input voltage range of 4.5 to 21V. The high voltage range is what sets this buck converter apart from most, as many converters max...

A new tiny squishy delight! This Black Rubber Joystick Nubbin Cap is the perfect add-on to any of your projects with a 5-way navigation joystick, like our Adafruit Mini Color TFT with Joystick FeatherWing or Adafruit 128x64 OLED Bonnet for Raspberry Pi. Fits perfectly on classic 5-way navigation joysticks like this one. It's solid, sturdy, and presses on firmly. We especially dig the cute directional etching. Pop it onto a...

This is the BH1750 16-bit Ambient Light Sensor from Rohm. Because of how important it is to humans and most other living things, sensing the amount of light in an environment is a common place to get started when learning to work with microcontrollers and sensors. Should we turn up the brightness of our display or dim it to save power? Which direction should your robot move to stay in an area with the most light? Is it day or night? All of these...

The VL53L0X is a  Time of Flight  distance sensor like no other you've used! The sensor contains a very tiny invisible laser source, and a matching sensor. The VL53L0X can detect the "time of flight", or how long the light has taken to bounce back to the sensor. Since it uses a very narrow light source, it is good for determining distance of only the surface directly in front of it. Unlike sonars that bounce ultrasonic...

The Espruino Puck.js v2 is a low energy Bluetooth smart button that can be programmed and debugged wirelessly with JavaScript. It is both multi-functional and easy to use, with a custom circuit board, the latest Nordic chip, Bluetooth LE, NFC, magnetometer, temperature sensor, RGB LEDs, infrared and much more, all enclosed in a tiny silicone case. You get all the joy of an interpreted language, with some great sensors and wireless...

For fans of the TMP36, we now have a very similar analog temperature sensor with a 3-pin JST connector (we call these STEMMA connectors). Unlike many of our temperature sensors, this one is analog output, not I2C, so its best used by a microcontroller with an analog input, as most microcontrollers do. These sensors are very simple to use, no libraries or complex configurations required. Plug this board into any of our 3-pin JST PH cables (we...

The SparkFun Qwiic HAT for Raspberry Pi is the quickest and easiest way to enter SparkFun’s Qwiic / STEMMA QT ecosystem when using that Raspberry Pi that you’ve come to know and love. The Qwiic HAT connects the I2C bus (GND, 3.3V, SDA, and SCL) on your Raspberry Pi to an array of Qwiic connectors on the HAT. Since the Qwiic system allows for daisy-chaining boards with different addresses, you can stack as many sensors as...

Measuring voltage and adjusting it is what electronics is all about so you won’t get far without friends like the Adafruit PCF8591 Quad 8-bit ADC + 8-bit DAC combo .   A nalog to  D igital  C onverters help by measuring an analog voltage and turning it into something a microcontroller like a Metro or Arduino can understand. If you’re using a single board computer like a Raspberry Pi, you might not have any...

Secure your project with biometrics - this all-in-one optical fingerprint sensor will make adding fingerprint detection and verification super simple. It even has an LED ring built around the detection pad, which can be set to red, blue or purple (as well as some fading/blinking effects) for a great user experience. These modules are typically used in safes - there's a high powered DSP chip that does the image rendering, calculation,...

Breathe easy, knowing that you can track and sense the quality of the air around you with this  Adafruit PMSA003I Air Quality Breakout . This sensor is great for monitoring air quality, in a compact plug-in format. Best of all, unlike almost all other sensors we've seen that are UART interface, this one is I2C interface , which makes it a great match for single board Linux computers like Raspberry Pi, or even plain Arduino UNO's...

Breathe easy, knowing that you can track and sense the quality of the air around you with this PM2.5 Air Quality Sensor with I2C Interface  particulate sensor. Mad Max & Furiosa definitely should have hooked up one of these in their truck while scavenging the dusty desert wilderness of post-apocalyptic Australia. And for those of us not living in an Outback dystopia, this sensor is great for monitoring air quality, in a...

These batteries are super popular in small electronic objects - and now you don't have to toss it out when the battery dies. This product comes with a ten pack of non-rechargeable LR44 button cell batteries. Each battery is 11.5mm diameter and 5.3mm thick. One battery has a nominal voltage output of 1.5V and a capacity of ‎120 mAh. Handy and adorable, but they get lonely on their own - often 2 or 3 of these are used at once, so...

Potentiometers are the perfect tool when you want to change your circuit by turning a knob. Turns out, there are times when you want to adjust your circuit without manually turning a knob, and the  DS1841 I2C Logarithmic Resistor from Maxim  can do just that. It's a programmable resistor, similar to an I2C potentiometer like the  DS3502 I2C Potentiometer , so why another? The big difference between the two is how the...

Bosch has stepped up their game with their new BMP280 sensor, an environmental sensor with temperature, barometric pressure that is the next generation upgrade to the BMP085/BMP180/BMP183. This sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI! This precision sensor from Bosch is the best low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuracy, and...

Over one hundred RGB LEDs, all individually-controllable, and four tactile buttons. It's the ultimate pocket-sized rainbow generator for Raspberry Pi! Unicorn HAT Mini  is a 17x7 matrix of RGB LEDs that can be controlled, both in terms of color  and  brightness, to display animations, text, simple images, and more. The four tactile buttons add tonnes of utility to control the color or brightness of the LEDs, or as...

This adorable little board will come in very handy whenever you need a good amount of 5V power. It's the size of a linear regulator, but it's actually a mini-booster! Input 2-5VDC on one side, and get 5V at up to 1A supply on the other. Perfect for use with battery-powered projects with 2 or 3 Alkaline, or a single Lithium battery. This booster uses a very small but thermally efficient chip from TI, the TPS61023. This chip has nearly...

Here at Adafruit we love discovering new and exotic glowing things. Like moths to the flame, we were intrigued by these fresh  Flexible Silicone Neon-Like LED Strips ! They look a lot like neon, but without the need for expensive transformers, glass tubing or inert gasses. Flexible and bendy, this particular strip features an RGBW (Red, Green, Blue, White) non-addressable LED strip with a solid chunk of translucent silicone rubber as a...

Here at Adafruit we love discovering new and exotic glowing things. Like moths to the flame, we were intrigued by these fresh  Flexible Silicone Neon-Like LED Strips ! They  look  a lot like neon, but without the need for expensive transformers, glass tubing or inert gasses. Flexible and bendy, this particular strip features  an RGBW (Red, Green, Blue, White) non-addressable LED strip  with a solid chunk of translucent...

This snazzy and smart  Filtering Mask with Math Pattern looks great while keeping you covered! The outer layer is made of a tightly woven cotton that holds its shape. The inner layer is made of a soft brushed cotton layer. The inner layer has an overlapping slot that you can slip a PM2.5 filter into. The mask comes with two filter pieces. You can wear this mask many times. After a week of wearing, remove the filter and replace it. Or...

Better grab your sunglasses, your sunscreen, and a bucket hat because these NeoPixels feature a 3W RGB LED and are so bright it's like taking a vacation ON THE SUN. Alright maybe we're exaggerating, but these are  really  bright. These chainable NeoPixel LEDs are not only super-smart, they are ridonkulously bright with 3W total, compared to 0.2W of a 'standard' NeoPixel. Each order comes with one 3W NeoPixel...

It’s not hard to find an accelerometer that can measure accelerations up to 16g, but if you need an accelerometer that can measure even larger amounts of acceleration, your options narrow (The ICM20649 is a great sensor and can measure up to ±30g). Enter the  LIS331 family  of accelerometers from ST, including the  H3LIS331  and  LIS331HH . As their model numbers may suggest, the LIS331s are close...

If you've ever ordered and wire up a 9-DOF sensor, chances are you've also realized the challenge of turning the sensor data from an accelerometer, gyroscope, and magnetometer into actual "3D space orientation"! Orientation is a hard problem to solve. The sensor fusion algorithms (the secret sauce that blends accelerometer, magnetometer, and gyroscope data into stable three-axis orientation output) can...

The Kitronik Inventor's Kit for the BBC micro:bit provides a fantastic way of learning how to construct electronic circuits and create code. The BBC micro:bit has a selection of pins that are located on the bottom edge of its PCB. By using Kitronik's specially designed 'edge' connector board in conjunction with the breadboard, it is easy to use these pins to connect additional components. No soldering is required and the first...

Here's one of the easiest capture solutions for getting HDMI data into your computer or Raspberry Pi, really any system with a USB port.. Use this capture device to convert a video signal from a camera (or another device) into a digital format your computer can recognize.  Its trivially easy to use: connect one end to an HDMI output up to 1080p. Connect the other end to a mainboard USB port. This dongle doesn't have the quality...

Upgrade any Feather board with precision motion sensing with the ST 9-DoF IMU, an all-in-one sensing 'Wing. It sports two fantastic sensors from ST to provide 9 degrees of full-motion data. The ST ISM330DHCX is an  industrial quality  Accelerometer+Gyroscope 6-DOF IMUs (inertial measurement unit). This IMU sensor has 6 degrees of freedom - 3 degrees each of linear acceleration and angular velocity at varying rates...

This  Finger Pulse Oximeter with Bluetooth LE  is great for monitoring your blood oxygen levels and pulse rate. Simply slide your index finger pad onto the springy sensor and see the readout on the OLED display. You'll see your heart rate pulse, blood oxygen estimation SpO2, and even a little graph of your blood pulsing.  This version includes Bluetooth LE connectivity so you can send your bio-data to your tablet or...

Sensirion Temperature/Humidity sensors are some of the finest & highest-accuracy devices you can get. And finally, we have some that have a true I2C interface for easy reading. The  SHTC3  sensor has an excellent ±2% relative humidity and ±0.2 °C accuracy for most uses. Unlike some earlier SHT sensors, this sensor has a true I2C interface on address 0x70. Unlike some earlier SHT sensors, this sensor...

Add motion, direction and orientation sensing to your project with this all-in-one 9-DOF sensor that is STEMMA QT ready for easy plug-n-play usage. Inside the chip are three sensors, one is a classic 3-axis accelerometer, which can tell you which direction is down towards the Earth (by measuring gravity) or how fast the board is accelerating in 3D space. The other is a 3-axis magnetometer that can sense where the strongest magnetic force is...

Circuit Playground Express is the next step towards a perfect introduction to electronics and programming. We've taken the original Circuit Playground Classic and made it even better! Not only did we pack even more sensors in, we also made it even easier to program. Start your journey with Microsoft MakeCode block-based or Javascript programming. Then, you can use the same board to try CircuitPython , with the Python interpreter running...

If you need to connect an RJ-45 cable (a.k.a Ethernet) to a board that doesn't have an Ethernet jack - this adapter will come in very handy!  No soldering required - Just flick up the little levers and slide in your stranded or solid-core wire. Note that these aren't recommended for high-speed Ethernet traffic, especially long term, for basic power/data distribution, RJ-45's are great! This is an  Ethernet (RJ-45) Female...

Make your own custom DE-9 cable or DE-9 interface with ease, using this  DE-9 Socket to Terminal Spring Block Adapter . You get a nice solid PCB with a DE-9 socket and one line of push-terminal blocks. Just flick up the little levers and slide in your stranded or solid core wire to quickly assemble your own wiring jigs. No soldering required! Perfect for when you need a non-standard wiring setup or interfacing to an older device with one of...

Make your own custom DE-9 cable or DE-9 interface with ease, using this  DE-9 Plug to Terminal Spring Block Adapter . You get a nice solid PCB with a DE-9 plug and one line of push-spring terminal blocks that you can use with stranded or solid core wire to quickly assemble your own wiring jigs. We recommend this adapter when you need a non-standard wiring setup or interfacing to a device with a VGA interface (that's what these...

The ESP8266 started a small revolution by bringing WiFi to a small and cheap package that also had enough processing power and enough pins to get small things done. Then the ESP32 came out with tons of pins, Bluetooth support, and dual 240 MHz cores. Now get ready to take your IoT designs to the next level with the ESP-S2-WROVER WiFi Module! The ESP32-S2 is a highly-integrated, low-power, 2.4 GHz Wi-Fi System-on-Chip (SoC) solution that now...

Digilent Analog Discovery 2 is a USB oscilloscope, logic analyzer, and multi-function instrument that allows users to measure, visualize, generate, record, and control mixed-signal circuits of all kinds - using any desktop computer or Raspberry Pi 4! Developed in conjunction with Analog Devices and supported by Xilinx University Program. This test and measurement device is small enough to fit in your pocket but powerful enough to replace a stack...

We live on a planet with an atmosphere, a big ocean of gaseous air that keeps everything alive - and that atmosphere is constantly bouncing off of us, exerting air pressure on everything around us. But, how much air is in the atmosphere, bearing down on us? This absolute pressure sensor,  ST LPS22HB (a.k.a LPS22 ) can quickly and easily measure this air pressure, useful when you want to know about the weather (are we in a low-pressure or...

It’s not hard to find an accelerometer that can measure accelerations up to 16g, but if you need an accelerometer that can measure even larger amounts of acceleration, your options narrow. Enter the LIS331 family of accelerometers from ST, including the LIS331HH . As the model number suggests, the LIS331s are close cousins to the venerable LIS3DH accelerometer that is on every Circuit Playground, from the Circuit Playground Classic to the...

We have all sorts of LED strips for a wide range of needs.  Chonky  strips? We got those! Strips with alligator clips that are easy-peasy to MakeCode? Oh definitely. Weatherproof? We have a gamut of options. And here's a new variation, a veritable bundle of Soft Flexible Wire Mini NeoPixels ! Attaching NeoPixel strips to your costume can be a struggle as the flexible PCBs can crack when bent too much. So...