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1.54 inch ePaper Bare Display
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Price: $29.72
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Sparkfun Item #: SPX-14848 -

You may be familiar with ePaper or eInk displays from eReaders like the Kindle. This display is the next step up with three colors instead of the classic two. The displays really do seem like paper, with easy visibility from almost any angle and even in sunlight. It also features ultra low power consumption. You can even unplug the display entirely without losing your image! This display does take 14 seconds to refresh, but it is ideal for applications where information is updated...

2D Barcode Scanner Breakout
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Price: $103.16
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Sparkfun Item #: SPX-16441 -

The DYScan DE2120 is one of the coolest little barcode scanners we've ever seen. This tiny "scan engine" will read 20 different barcode symbologies — both 1D and 2D! This is achieved by using a camera coupled with on-board image processing to identify and decode everything from UPC codes to QR codes. The module also features two LEDs: one for illumination and one to project the red line that you're used to seeing from laser-based scanners. This breakout board makes it easy to explore all of...

4.2 inch ePaper Bare Display
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Price: $91.69
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Sparkfun Item #: SPX-14847 -

You may be familiar with ePaper or eInk displays from eReaders like the Kindle. This display is the next step up with three colors instead of the classic two. The displays really do seem like paper, with easy visibility from almost any angle and even in sunlight. It also features ultra low power consumption. You can even unplug the display entirely without losing your image! This display does take 14 seconds to refresh, but it is ideal for applications where information is updated...

Air Quality Sensor (Qwiic) - SGP30
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Price: $45.79
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Sparkfun Item #: SPX-14813 -

The SGP30 is an indoor air quality sensor equipped with an I2C interface. It outputs equivalent CO2 in ppm and Total Volatile Organic Compounds (TVOC) in ppb. The sensor also gives access to its raw measurement values of Ethanol and H2. The SGP30 boasts high stability with low long term drift. With its continuous baseline compensation algorithm, readings stay accurate over time. You can even fine tune your readings by interfacing with an external humidity sensor to add humidity compensation....

Atomic Clock
Price: $4,226.44
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Sparkfun Item #: SPX-14830 -

The Miniature Atomic Clock (MAC) from Microsemi uses a rubidium laser to output an extremely accurate clock. We're speaking at the edge of our knowledge so please bear with us but the short-term stability (Allan Deviation) is ≤8*10-12. From Wikipedia on Atomic Clocks: For context, a femtosecond (1×10−15 s) is to a second what a second is to about 31.71 million (31.71×106) years and an attosecond (1×10−18 s) is to a second what a second is to about 31.71 billion (31.71×109) years. That puts the...

Configurable RC Filter
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Price: $15.95
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Sparkfun Item #: SPX-16392 -

RC time constants and cut-off frequencies got you down? What frequencies should pass and which should be stopped from passing through? Determining values for R and C can be hard work, but do you know if your filter will work? Experimentally verify your filter using SparkX's Configurable RC Filter. With it's wide array of values, you can test filters with a large range of cut-off values. The Configurable RC Filter supports low pass and high pass filter design, just be sure to follow the...

Magnetic Imaging Tile - 8x8
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Price: $330.91
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Sparkfun Item #: SPX-14652 -

The Magnetic Imaging Tile uses an array of 64 hall effect sensors to convert magnetic fields to the visual spectrum. That's right! You can now see magnetic fields in real time! As is to be expected, there are caveats: the magnetic sensors used on the tile are some of the most sensitive on the market but you need to be within 1 to 2 centimeters of the tile to get a good image. The Magnetic Imaging Tile uses the following components: Magnetic Sensor (64 pixels): DRV5053VA -90mV/mT...

Pressure Sensor (Qwiic) - MS5637
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Price: $15.95
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Sparkfun Item #: SPX-14688 -

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. The Qwiic Pressure Sensor for the MS5637 is a very sensitive, fully calibrated, low power, easy to use barometric pressure sensor. It's perfect for home weather stations, detecting changes in...

Qwiic Alphanumeric Display - Blue
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Price: $15.95
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Sparkfun Item #: SPX-16426 -

We are quite familiar with seven-segment displays. We see them on our alarm clocks, ovens, and microwaves. But what happens if you add more segments to each digit? All of a sudden you can display more than just numbers! Introducing the brand new Alphanumeric Display from your friends at SparkX. These fourteen-segment digits allow you display all sorts of numbers, characters, and symbols. The SparkFun Alphanumeric Display Arduino library makes printing strings to the display as easy as calling...

Qwiic Alphanumeric Display - Pink
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Price: $15.95
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Sparkfun Item #: SPX-16391 -

We are quite familiar with seven-segment displays. We see them on our alarm clocks, ovens, and microwaves. But what happens if you add more segments to each digit? All of a sudden you can display more than just numbers! Introducing the brand new Alphanumeric Display from your friends at SparkX. These fourteen-segment digits allow you display all sorts of numbers, characters, and symbols. The SparkFun Alphanumeric Display Arduino library makes printing strings to the display as easy as calling...

Qwiic Alphanumeric Display - Purple
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Price: $15.95
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Sparkfun Item #: SPX-16425 -

We are quite familiar with seven-segment displays. We see them on our alarm clocks, ovens, and microwaves. But what happens if you add more segments to each digit? All of a sudden you can display more than just numbers! Introducing the brand new Alphanumeric Display from your friends at SparkX. These fourteen-segment digits allow you display all sorts of numbers, characters, and symbols. The SparkFun Alphanumeric Display Arduino library makes printing strings to the display as easy as calling...

Qwiic Alphanumeric Display - Red
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Price: $15.95
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Sparkfun Item #: SPX-16427 -

We are quite familiar with seven-segment displays. We see them on our alarm clocks, ovens, and microwaves. But what happens if you add more segments to each digit? All of a sudden you can display more than just numbers! Introducing the brand new Alphanumeric Display from your friends at SparkX. These fourteen-segment digits allow you display all sorts of numbers, characters, and symbols. The SparkFun Alphanumeric Display Arduino library makes printing strings to the display as easy as calling...

Qwiic Arcade - Blue
Price: $13.66
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Sparkfun Item #: SPX-15592 -

According to some of our engineers, if you hold this Qwiic Arcade switch up next to your ear, you can hear the sounds of Pac-Man scrolling across the screen like it's 1984. With its great clicky tactile feel, the Qwiic Arcade adds a certain retro flair to your project while handling all the complications of debouncing and polling. The Qwiic Arcade simplifies those nasty worries away into an easy to use I2C device with no soldering required. Thanks to our Arduino library, using the switch is as...

Qwiic Arcade - Red
Price: $13.66
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Sparkfun Item #: SPX-15591 -

According to some of our engineers, if you hold this Qwiic Arcade switch up next to your ear, you can hear the sounds of Pac-Man scrolling across the screen like it's 1984. With its great clicky tactile feel, the Qwiic Arcade adds a certain retro flair to your project while handling all the complications of debouncing and polling. The Qwiic Arcade simplifies those nasty worries away into an easy to use I2C device with no soldering required. Thanks to our Arduino library, using the switch is as...

Qwiic EEPROM - 512Kbit
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Price: $7.81
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Sparkfun Item #: SPX-14764 -

Add some serious data storage to your latest project with this 512Kbit (64KB) EEPROM. Some flash based microcontrollers (like the SAMD21) do not have EEPROM. Use the Qwiic EEPROM for storing things like GPS waypoints and other user settings that need to be maintained between sketch uploads. Qwiic EEPROM has 3 address jumpers, allowing for up to 8 EEPROMs on one bus. We've written a great Arduino library to make using this and any EEPROM easy to use. Check it out by searching 'SparkFun EEPROM'...

Qwiic FM Transceiver - Si4721
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Price: $103.16
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Sparkfun Item #: SPX-15853 -

You're probably already familiar with Silicon Labs' brilliant 47xx line of radio devices. We've been carrying their FM tuners for a long time and find them reliable and simple to operate. That said, we thought it would be nice if you could transmit as well as receive, so we looked into it and we found this excellent FM Transceiver! The Si4721 integrates the complete tuner and transmit functions from previous Si47xx devices into one chip for both FM broadcast reception and standards-compliant*,...

Qwiic GPIO
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Price: $14.04
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Sparkfun Item #: SPX-16443 -

Do you find yourself wishing that you had just a few more GPIO pins? What if you only need that one more pin? You could add another microcontroller to your project but that increases cost and complexity. Instead, you can use the Qwiic GPIO to add four new pins to your Qwiic project! The Qwiic GPIO is an I²C device which adds an additional four IO pins which you can read and write just like any other digital pin on your controller. The details of the I²C interface have been taken care of for...

Qwiic Humidity AHT20
Price: $11.36
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Sparkfun Item #: SPX-16618 -

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! Use our Arduino library to send I2C commands over the Qwiic bus to trigger measurements and get real-time temperature and humidity data. Just search "SparkFun AHT20" in the Arduino library manager or download the zip file from our Github repo to get the library. This board is one of...

Qwiic Humidity Sensor - SHTC3
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Price: $17.57
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Sparkfun Item #: SPX-15074 -

This product has gone red! The SparkX version is just as good, and now on sale! Sensirion's SHTC3 digital humidity sensor builds on the success of their SHTC1 sensor. The SHTC3 has a broader supply voltage range (1.62V to 3.6V) and higher accuracy (±2% RH, ±0.2°C) than its predecessor, enabling greater flexibility. The SHTC3 is low cost, easy-to-use, highly accurate, digital humidity and temperature sensor. This sensor is ideal for environmental sensing and data logging and perfect for build a...

Qwiic IR Breakout
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Price: $34.31
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Sparkfun Item #: SPX-15804 -

Have you ever needed to monitor your yogurt in the community fridge because there’s a yogurt thief loose at work? Or have you ever needed the lights to flick on when walking in a room because your hands were full of groceries? The Qwiic IR breakout is the solution to all your people-detecting needs. This board utilizes Kemet Corporation’s lensless passive infrared sensor, PL-N823. It uses the pyroelectric effect of ceramic by absorbing infrared rays emitted from the human body. This sensor has...

Qwiic Pressure Sensor - LPS25HB
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Price: $22.84
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Sparkfun Item #: SPX-14767 -

The LPS25HB is an absolute pressure sensor which means that it has an internal vacuum as a reference. (As opposed to differential and gage sensors, see this description by Honeywell for more info) Absolute pressure sensors are often used as altimeters however they can be seen in other applications like the Robotic Finger Sensor v2. You can use this absolute pressure sensor to inform a drone autopilot of altitude, make a personal weather station, or maybe even help test someone's lung function!...

Qwiic Step
Price: $80.17
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Sparkfun Item #: SPX-15951 -

Ever found controlling stepper motors confusing? There are a huge variety of wires to get connected right: power, motor coils, and control lines. And the tiny screwdriver to adjust the terminals is never where it should be. Qwiic Step simplifies the tangle. Just connect your motor to Qwiic Step using the ergonomic latch terminals, apply 8 - 35V to the barrel jack, and plug in Qwiic Step to your favorite RedBoard with a Qwiic cable. Qwiic Step comes preprogrammed to accept simple I2C commands,...

Qwiic Switch
Price: $10.46
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Sparkfun Item #: SPX-15586 -

Microswitches are an easy way to determine if your robot has hit a wall or if your gantry has reached an endstop, but why would you want to deal with debouncing, polling, and wiring up pull-up resistors? The Qwiic Switch simplifies all of those nasty worries away into an easy to use I2C device! With our Qwiic system using the switch is as simple as calling button.isPressed(). This board is BYOS, or Bring Your Own Switch. It's designed to solder onto existing microswitches, like the endstops on...

Qwiic Thermocouple Amplifier - MCP9600
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Price: $35.22
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Sparkfun Item #: SPX-15508 -

The MCP9600 is a high accuracy thermocouple amplifier equipped with an I2C interface, accessed over our Qwiic system. Inside the chip are two temperature sensors, one for the thermocouple itself (the hot junction) and one for the chip itself (the cold junction). As a result, the MCP9600 can read both the ambient temperature and the temperature of whatever you're trying to measure! The MCP9600 can do both with a resolution of 0.0625°C, and an accuracy of ±1.5°C (worst-case). This board comes...

Robotic Finger Sensor v2
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Price: $91.69
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Sparkfun Item #: SPX-14687 -

Does your robot crush objects with its hulkishly strong grip? Give your robotic hand or claw a better sense of touch with the Robotic Finger Sensor. This new version adds pressure sensing so now you can know how hard you're gripping! The Robotic Finger Sensor (RFS) uses a unique combination of infrared distance sensing, pressure sensing, optical encapsulant, and data filtering to detect extremely light touches. Additionally, the silicon covering is squishy, giving the sensor increased grip...

Rotary Dial Kit
Price: $57.26
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Sparkfun Item #: SPX-14790 -

The Rotary Dial Kit is designed to be a simple interface device for your project. Input is achieved using a rotating encoder bezel and output is handled by a ring of addressable RGB LEDs along the inside edge of the ring. Two keyhole hangers are milled into the back of the Rotary Dial so it can be wall mounted. The LED ring comes pre-soldered, so the only assembly required is to solder the three included SMD pogo pins and then bolt the PCBs together using the supplied standoffs! A 5-pin 0.1"...

SparkX Pi-Filter
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Price: $6.62
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Sparkfun Item #: SPX-15260 -

It’s 2pm on a Tuesday and you find yourself at the test house with a design failing an emissions test. You quickly determine that you need to hack a filter onto your design but there is no space to do so. If only you had a simple board you could attach to the product. Introducing the Pi-Filter! This simple board gets the name Pi-Filter from its shape, which resembles the Greek letter Pi. It has two shunt capacitors with an inductor in between. In this C-L-C configuration, a person can quickly...

SPI Buffer Saver
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Price: $7.81
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Sparkfun Item #: SPX-14973 -

The SPI Buffer Saver is a hardware solution to an interesting problem. In short the standard Arduino SPI library includes a method to transfer out an array (or buffer) but the contents are replaced by whatever data is on the MOSI line at that time. This is problematic when using the SPI hardware to control things like displays or addressable LED strips because it requires you to re-set the data in the array each time. You can read more about the inspiration for this board here. The BufferSaver...

The Prototype HARP
Price: $137.59
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Sparkfun Item #: SPX-14379 -

Out-Of-Fiction A mysterious device... a rogue AI... a dark secret... The Prototype is a hardware alternate reality puzzle (HARP) designed to put your puzzle solving and hardware hacking skills to the test. In other words, it's an escape room on a board. To solve the puzzle you'll need a basic set of electronics and cryptography skills – or a couple of nerdy friends. As you make your way through you'll uncover the story of a failed project and the truth about what's really going on at SparkX....

Triple Axis Accelerometer Breakout - LIS2DH12 (Qwiic)
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Price: $15.95
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Sparkfun Item #: SPX-15760 -

Qwiic has struck again! This MEMS, three axis accelerometer by STMicroelectronics has been outfitted to communicate over Qwiic. The LIS2DH12 is an ultra-low-power highperformance three-axis linear accelerometer belonging to the “femto” family with digital I2C/SPI serial interface standard output. The LIS2DH12 has user-selectable full scales of ±2g/±4g/±8g/±16g and is capable of measuring accelerations with output data rates from 1 Hz to 5.3 kHz. The accelerometer features ultra-low power...