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2D Barcode Scanner Breakout
Price: $97.99
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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...

Air Quality Sensor (Qwiic) - SGP30
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Price: $43.49
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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: $4,014.44
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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...

Magnetic Imaging Tile - 8x8
Price: $314.31
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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: $15.15
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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: $15.15
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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
Price: $15.15
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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
Price: $15.15
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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: $15.15
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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: $12.97
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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: $12.97
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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: $7.42
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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: $97.99
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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 Humidity AHT20
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Price: $10.79
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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 IR Breakout
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Price: $32.59
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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: $21.69
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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
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Price: $76.15
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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
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Price: $9.94
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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...

Robotic Finger Sensor v2
Price: $87.09
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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...

SPI Buffer Saver
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Price: $7.42
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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...

Triple Axis Accelerometer Breakout - LIS2DH12 (Qwiic)
Price: $15.15
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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...