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10Pin Female Header - 2.00mm (5pcs Pack)
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Price: $1.66
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Elecrow Item #: EL-CCO21002C -

    This is a pack which includes 5pcs 10 pin female header. We use this header on all our XBee series modules. They have 0.2mm spacing between pins. Specification Pin Pitch: 2.0mm Contact Qty: 10 Contact Type: Straight ...

12mm Coin Cell Breakout Board
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Price: $3.71
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Adafruit Item #: ADA-1868 -

Simple but effective - this breakout board has a CR1220 coin cell battery holder soldered on and 0.1" pitch breakout pins for easy connecting. Great for powering very low-current projects, or adding a battery backup circuit to a real-time-clock or similar. Comes with one fully assembled and tested coin cell battery holder and a small stick of 0.1" header so you can solder it on and plug into a breadboard. We also have a version with an on/off switch

12mm Coin Cell Breakout w/ On-Off Switch
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Price: $5.24
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Adafruit Item #: ADA-1867 -

Simple but effective - this breakout board has a CR1220 coin cell battery holder soldered on, an on/off switch and 0.1" pitch breakout pins for easy connecting. Great for powering very low-current projects, or adding a battery backup circuit to a real-time-clock or similar. There's two ground pins, one 'switched' power pin, and one pin that is always on. Comes with one fully assembled and tested breakout plus a small stick of 0.1" header so you can solder it on and plug into a breadboard. We...

2-Way 2.1mm DC Barrel Jack Splitter Squid
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Price: $5.62
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Adafruit Item #: ADA-1351 -

Double up your power adapters with this wonderfully simple 2-way power jack splitter. All you have to do is connect a standard 5.5mm/2.1mm sized plug into one end, and behold, two identical plugs to use! We like the rugged molding on these adapters, and they're really handy when you have a project with multiple pluggable devices. 2-Way 2.1mm DC Barrel Jack Splitter Squid (0:25)

2.1mm DC Barrel Jack to 1st Generation MagSafe Adapter
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Price: $14.28
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Adafruit Item #: ADA-3546 -

If you've ever owned a 1st generation MacBook, you'll recognize this little friend. The premise of this 2.1mm DC Barrel Jack to 1st Generation MagSafe Adapter is simple. There's a MagSafe plug on one end and a 5.5mm/2.1mm DC barrel jack with center positive polarity on the other. This allows you to connect a 15-20VDC power supply to something that expects to connect to 1st gen. MagSafe. Since you can easily destroy hardware using this adapter, we really recommend it only for experts and people...

2.1mm DC Barrel Jack to 2nd Generation MagSafe Adapter
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Price: $14.28
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Adafruit Item #: ADA-3547 -

If you own a MacBook, you'll recognize this little friend. The premise of this 2.1mm DC Barrel Jack to 2nd Generation MagSafe Adapter is simple. There's a MagSafe plug on one end and a 5.5mm/2.1mm DC barrel jack with center positive polarity on the other. This allows you to connect a 15-20VDC power supply to something that expects to connect to 2nd gen. MagSafe. Since you can easily destroy hardware using this adapter, we really recommend it only for experts and people who fully understand...

2.1mm DC Barrel Jack to Alligator Clips
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Price: $3.71
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Adafruit Item #: ADA-1328 -

Turn a wall adapter into a mini power supply with this incredibly useful adapter. A high quality molded 2.1mm DC barrel jack is brought out to red (center positive) & black (ring negative) alligator clips. Works with just about every wall adapter, good for about 2 or 3 Amps of current and up to 24VDC. 2.1mm DC Barrel Jack to Alligator Clips (1:28)

2.1mm to 1.7mm DC jack adapter
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Price: $4.76
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Adafruit Item #: ADA-411 -

We're carrying this adapter primarily to allow Chumby Hacker Board users to adapt our nice 5V @ 2A power supply to their CHB. But you can use this adapter for anything else that has a 1.7mm DC jack, such as a PSP.

2.1mm to 2.5mm DC Barrel Plug Adapter
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Price: $1.81
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Adafruit Item #: ADA-2897 -

"Hrmph! All I have is a power supply with a 2.1mm plug and my doodly-whatsit has a 2.5mm jack. I keep trying to force the plug to fit but that 0.4mm difference just wont work....what am I going to do!?" ENTER The Adapter. This 2.1mm to 2.5mm adapter is the best way to adapt a 2.1mm plug so that it will fit into a 2.5mm jack. Remember that this will fit into a device that normally would require a 5.5 OD / 2.5mm ID plug, and lets you use a 5.5/2.1mm plug. Once this is in place you can just any...

2mm 10pin XBee Header
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Price: $1.53
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Sparkfun Item #: PRT-10112 -

"This is a 10-pin header with 2mm pitch that mates with our XBee socket. It can be used for making ‘dummy XBees’ or anything else you want! Note: This item is sold singly, not in pairs. Documents: Datasheet "

2x3 Pin Shrouded Header
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Price: $2.41
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Sparkfun Item #: PRT-10877 -

"Simple shrouded 6-pin connector. Good for preventing cable connection mishaps. Use for programming, data, power, or any other kind of connection. 2x3 pins on 0.1" centers. Documents: Datasheet "

2x40 Right Angle Male Header - 2.54mm(5pcs pack??
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Price: $0.93
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Elecrow Item #: EL-CCH02405C -

This is a pack which includes 5pcs 2x40 pin break away male headers. They have 2.54mm spacing between pins and can be cut to any size.SpecificationPin Pitch: 2.54mmContact Qty: 80Contact Length: 6.3cmContact Type: Bend

2X40Pin Male Header - 2.54mm (5Pcs Pack)
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Price: $2.15
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Elecrow Item #: EL-CCO14003C -

    This is a pack which includes 5pcs 2 * 40 pin break away male headers. They have 2.54mm spacing between pins and can be cut to any size. Specification Pin Pitch: 2.54mm Contact Qty: 2 * 40 Contact Length: 6.3cm Contact Type: Straight ...

2x5 Pin IDC Ribbon Cable
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Price: $2.41
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Sparkfun Item #: PRT-08535 -

"Simple IDC ribbon cable. Used for AVR programming, general communication, and all around handy-ness. Datasheet shows an incorrect length. Cable length is 6" Documents:Datasheet"

2x5 Pin Shrouded Header
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Price: $2.41
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Sparkfun Item #: PRT-08506 -

"Simple shrouded 10-pin connector. Good for preventing cable connection mishaps. Use for programming, data, power, or any other kind of connection. 2x5 pins on 0.1" centers. Documents: Datasheet "

3.5 / 1.3mm or 3.8 / 1.1mm to 5.5 / 2.1mm DC Jack Adapter Cable
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Price: $1.81
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Adafruit Item #: ADA-2788 -

This convenient 3.8mm/1.3mm or 3.5mm/1.1mm or 1.3mm DC to 2.1mm DC adapter cable lets you plug one of our solar panels into our optimized Solar Lithium Ion/Polymer charger! 2.1mm inner diameter (5.5mm outer diameter) is the most common type of DC plug, but you can use this adapter for anything else that has a 1.1 or 1.3mm ID (3.5-3.8mm OD) DC jack! The adapter has little springy parts inside so it can be used with 3.5mm to 3.8mm OD plugs.

36-pin Stacking header - pack of 5!
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Price: $5.62
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Adafruit Item #: ADA-3366 -

Headers are like the duct tape of electronics. They're great for connecting things together, soldering to perf-boards, sockets for wires or break-away header, etc. We go through these guys real fast, and thought that given how handy they are, we'd offer them in a pack of five! Stacking headers are a twist on the standard/common male and female header sets. In this case you have one header that has a socket on one end, and a long tail that gets soldered through a PCB. When soldered into a...

4-Way 2.1mm DC Barrel Jack Splitter
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Price: $9.43
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Adafruit Item #: ADA-1352 -

Quadruple your power adapters with this wonderfully simple 4-way power jack splitter. All you have to do is connect a standard 5.5mm/2.1mm sized plug into one end, and behold, four identical plugs to use! We like the rugged molding on these adapters, and they're really handy when you have a project with multiple pluggable devices. 4-Way 2.1mm DC Barrel Jack Splitter (0:25)

40Pin 2.54mm Male Header - Black (5pcs pack)
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Price: $1.29
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Elecrow Item #: EL-CCO14002C -

    This is a pack which includes 5pcs 40 pin break away male headers. They have 2.54mm spacing between pins and can be cut to any size. Specification Pin Pitch: 2.54mm Contact Qty: 40 Contact Length: 6.3cm Contact Type: Straight ...

40Pin Bend Female Header - 2.54mm
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Price: $1.16
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Elecrow Item #: EL-CCO14001C -

    This is a pack which includes 1pcs 40-pin bend female header. They have 2.54mm spacing between pins. Specification Pin Pitch: 2.54mm Contact Qty: 40 Contact Length: 8cm Contact Type: Bend

40Pin Bend Male Header - 2.54mm (5 Pcs Pack)
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Price: $3.48
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Elecrow Item #: EL-CCO24001C -

    This is a pack which includes 5pcs 40pin bend break away male headers. They have 2.54mm spacing between pins and can be cut to any size. Specification Pin Pitch: 2.54mm Contact Qty: 40 Contact Length: 6.3cm Contact Type: Bend ...

5050 LED breakout PCB - 10 pack!
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Price: $9.43
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Adafruit Item #: ADA-1762 -

This 5050 LED breakout PCB set will make your life much much easier and get you prototyping faster than ever. Solder your 5050 sized LED to either side and you're ready to rock on any solderless breadboard. Each item comes with ten PCBs and each PCB is identical. PCB is .8mm/.03" thick, with ~10mm/0.4" spacing between the two rows.

6-Pin Chassis Connector - Panel Mount (male and female)
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Price: $4.74
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Sparkfun Item #: PRT-11475 -

"This 6-pin connector and plug set is great when you need to create a robust connection for signal or power. This product consists of two separate parts, the panel-mount jack and the mating plug. The plug has a ring which screws to the panel-mount connector ensuring a solid connection that won’t pull off. The connector uses 6 solder-cup connections for easy wiring. The panel-mount side mounts in a 15.5mm hole with the aid of a lock-washer and nut (both included). The jack uses solder-cup...

8-channel Bi-directional Logic Level Converter
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Price: $15.23
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Adafruit Item #: ADA-395 -

Because the Arduino (and Basic Stamp) are 5V devices, and most modern sensors, displays, flash cards and modes are 3.3V-only, many makers find that they need to perform level shifting/conversion to protect the 3.3V device from 5V. Although one can use resistors to make a divider, for high speed transfers, the resistors can add a lot of slew and cause havoc that is tough to debug. For that reason, we like using 4050/74LVX245 series and similar logic to perform proper level shifting. Only...

9 Pin Female Serial Connector - PCB Mount
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Price: $2.41
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Sparkfun Item #: PRT-00429 -

"DB9 female header - right angle PCB mount. 0.318" Style. Documents: Datasheet "

AD Keyboard Module
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Price: $18.43
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Elecrow Item #: EL-PBO01200A -

Adafruit 12 x Capacitive Touch Shield for Arduino - MPR121
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Price: $23.80
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Adafruit Item #: ADA-2024 -

This touch-able add on shield for Arduinos will inspire your next interactive project with 12 capacitive touch sensors. Capacitive touch sensing works by detecting when a person (or animal) has touched one of the sensor electrodes. Capacitive touch sensing used for stuff like touch-reactive tablets and phones, as well as control panels for appliances, which is where you may have used it before. This shield allows you to create electronics that can react to human touch, with up to 12 individual...

Adafruit 12-Channel 16-bit PWM LED Driver - SPI Interface
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Price: $14.28
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Adafruit Item #: ADA-1455 -

For all of you out there who want to control 12 channels of PWM, we salute you! We also would like you to check out this breakout board for the TLC59711 PWM driver chip. This chip can control 12 separate channels of 16-bit PWM output. This is the highest-resolution PWM board we've seen! Designed (and ideal) for precision LED control, this board is not good for driving servos. If you need to drive servos, we have a controller for that over here. Only two "SPI" pins are required to send data...

Adafruit 24-Channel 12-bit PWM LED Driver - SPI Interface
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Price: $28.47
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Adafruit Item #: ADA-1429 -

For all of you out there who want to control 24 channels of PWM, we salute you! We also would like you to check out this breakout board for the TLC5947 PWM driver chip. This chip can control 24 separate channels of 12-bit PWM output. Designed (and ideal) for LED control, this board is not good for driving servos. If you need to drive servos, we have a controller for that over here. Only three "SPI" pins are required to send data (our Arduino library shows how to to use any digital...

Adafruit 9-DOF Accel/Mag/Gyro+Temp Breakout Board - LSM9DS0
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Price: $47.51
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Adafruit Item #: ADA-2021 -

Add motion, direction and orientation sensing to your Arduino project with this all-in-one 9-DOF sensor. 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 coming from, generally used to detect magnetic north. The third is a 3-axis gyroscope that can...

Adafruit 9-DOF Accel/Mag/Gyro+Temp Breakout Board - LSM9DS1
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Price: $28.47
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Adafruit Item #: ADA-3387 -

Add motion, direction and orientation sensing to your Arduino project with this all-in-one 9-DOF sensor. 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 coming from, generally used to detect magnetic north. The third is a 3-axis gyroscope that can...

Adafruit Audio FX Mini Sound Board - WAV/OGG Trigger - 2MB Flash
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Price: $28.47
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Adafruit Item #: ADA-2342 -

Would you like to add audio/sound effects to your next project, without an Arduino+Shield? Or maybe you don't even know how to use microcontrollers, you just want to make a sound play whenever you press a button. What about something that has to be very small and portable? You are probably feeling a little frustrated: it's been very hard to find a simple, low cost audio effects trigger that is easy to use and does not require any programming UNTIL NOW! Don't get me wrong, I love the MP3 Music...

Adafruit Audio FX Mini Sound Board - WAV/OGG Trigger 16MB Flash
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Price: $37.99
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Adafruit Item #: ADA-2341 -

Would you like to add audio/sound effects to your next project, without an Arduino+Shield? Or maybe you don't even know how to use microcontrollers, you just want to make a sound play whenever you press a button. What about something that has to be very small and portable? You are probably feeling a little frustrated: it's been very hard to find a simple, low cost audio effects trigger that is easy to use and does not require any programming UNTIL NOW! Don't get me wrong, I love the MP3 Music...

Adafruit CCS811 Air Quality Sensor Breakout - VOC and eCO2
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Price: $37.99
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Adafruit Item #: ADA-3566 -

Breathe easy - we finally have an I2C VOC/eCO2 sensor in the Adafruit shop! Add air quality monitoring to your project and with an Adafruit CCS811 Air Quality Sensor Breakout. This sensor from AMS is a gas sensor that can detect a wide range of Volatile Organic Compounds (VOCs) 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...

Adafruit CP2104 Friend - USB to Serial Converter
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Price: $11.33
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Adafruit Item #: ADA-3309 -

Long gone are the days of parallel ports and serial ports. Now the USB port reigns supreme! But USB is hard, and you just want to transfer your every-day serial data from a microcontroller to computer. What now? Enter the Adafruit CP2104 Friend! This is a high-quality CP2104 USB-Serial chip that can upload code at a blistering 2Mbit/s for fast development time. It also has auto-reset so no noodling with pins and reset button pressings. The CP2104 has better driver support than the CH340 and...

Adafruit DRV8833 DC/Stepper Motor Driver Breakout Board
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Price: $9.43
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Adafruit Item #: ADA-3297 -

Spin two DC motors or step one bi-polar or uni-polar stepper with up to 1.2A per channel using the DRV8833. This motor driver chip is a nice alternative to the TB6612 driver. Like that chip, you get 2 full H-bridges, but this chip is better for low voltage uses (can run from 2.7V up to 10.8V motor power) and has built in current limiting capability. We set it up for 1A current limiting so you don't get more than 2A per chip, but you can also disable the current limiting, or change it to a...

Adafruit DRV8871 DC Motor Driver Breakout Board - 3.6A Max
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Price: $14.28
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Adafruit Item #: ADA-3190 -

Crank up your robotics with powerful Adafruit DRV8871 motor driver breakout board. This motor driver has a lot of great specs that make it useful for a wide variety of mechatronics. In particular, the simple resistor-set current limiting and auto-magic PWM support make it super easy to use with just about any brushed DC motor. Check out the specs for the DRV8871: 6.5V to 45V motor power voltage Up to 5.5V logic level on IN pins 565m? Typical RDS(on) (high + low) 3.6A peak current PWM control...

Adafruit DS1307 Real Time Clock Assembled Breakout Board
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Price: $14.28
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Adafruit Item #: ADA-3296 -

This is a great battery-backed real time clock (RTC) that allows your microcontroller project to keep track of time even if it is reprogrammed, or if the power is lost. Perfect for datalogging, clock-building, time stamping, timers and alarms, etc. The DS1307 is the most popular RTC - but it requires 5V power to work (although we've used it with 5V power and 3.3V logic successfully) Works great with an Arduino using our RTC library or with a Raspberry Pi (or similar single board linux...

Adafruit DS3231 Precision RTC Breakout
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Price: $26.57
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Adafruit Item #: ADA-3013 -

The datasheet for the DS3231 explains that this part is an "Extremely Accurate I�C-Integrated RTC/TCXO/Crystal". And, hey, it does exactly what it says on the tin! This Real Time Clock (RTC) is the most precise you can get in a small, low power package. Most RTCs use an external 32kHz timing crystal that is used to keep time with low current draw. And that's all well and good, but those crystals have slight drift, particularly when the temperature changes (the temperature changes the...

Adafruit FT232H Breakout - General Purpose USB to GPIO+SPI+I2C
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Price: $28.47
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Adafruit Item #: ADA-2264 -

Wouldn't it be cool to drive a tiny OLED display, read a color sensor, or even just flash some LEDs directly from your computer? Sure you can program an Arduino or Trinket to talk to these devices and your computer, but why can't your computer just talk to those devices and sensors itself? Well, now your computer can talk to devices using the Adafruit FT232H breakout board! What can the FT232H chip do? This chip from FTDI is similar to their USB to serial converter chips but adds a...

Adafruit I2C Non-Volatile FRAM Breakout - 256Kbit / 32KByte
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Price: $18.95
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Adafruit Item #: ADA-1895 -

FRAM, or Ferroelectric Ram, is the coolest new data storage method that all the fashion magazines are talking about. Oh wait, no that's quilted handbags. But FRAM is pretty damn cool too! It's similar to Dynamic random-access memory, only with a ferroelectric layer instead of a dielectric layer. This gives it stable handling (the bytes you write are non-volatile) with dynamic responsiveness (you can write them very fast!) Now, with our I2C FRAM breakout board you can add some FRAM storage to...

Adafruit I2S 3W Class D Amplifier Breakout - MAX98357A
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Price: $11.33
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Adafruit Item #: ADA-3006 -

Listen to this good news - we now have an all in one digital audio amp breakout board that works incredibly well with the Raspberry Pi! If you're looking for an easy and low cost way to get you digital sound files bumpin' then the MAX98357 I2S Amp Breakout is for you. It takes standard I2S digital audio input and, not only decodes it into analog, but also amplifies it directly into a speaker. Perfect for adding compact amplified sound, it takes 2 breakouts (I2S DAC + Amp) and combines them...

Adafruit MiniBoost 5V @ 100mA Charge Pump - AP3602A
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Price: $5.62
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Adafruit Item #: ADA-3661 -

This adorable little board will come in very handy whenever you need a small amount of 5V power. It's the size of a linear regulator, but it's actually a mini-booster! Input 3V on one side, and get 5V at up to 100mA supply on the other. Perfect for use with battery-powered projects with 2 or 3 Alkaline, or a single Lithium battery. For big projects, you may want one of our PowerBoost boards that can give you a honkin' 500mA-2A of current. This booster uses a charge-pump topology, which makes...

Adafruit Mono 2.5W Class D Audio Amplifier - PAM8302
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Price: $7.52
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Adafruit Item #: ADA-2130 -

This super small mono amplifier is surprisingly powerful - able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.0V-5.5VDC. Since the amp is a class D, its very efficient (over 90% efficient when driving an 8? speaker at over half a Watt) - making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we could barely tell it got hot. There's even a volume trim...

Adafruit PCF8523 Real Time Clock Assembled Breakout Board
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Price: $9.43
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Adafruit Item #: ADA-3295 -

This is a great battery-backed real time clock (RTC) that allows your microcontroller project to keep track of time even if it is reprogrammed, or if the power is lost. Perfect for datalogging, clock-building, time stamping, timers and alarms, etc. Equipped with PCF8523 RTC - it can run from 3.3V or 5V power & logic! Works great with an Arduino using our RTC library, with CircuitPython or with a Raspberry Pi (or similar single board linux computer) PCB & header are included Plugs into any...

Adafruit RFM69HCW Transceiver Radio Breakout - 433 MHz
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Price: $18.95
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Adafruit Item #: ADA-3071 -

"You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat." Sending data over long distances is like magic, and now you can be a magician with this range of powerful and easy-to-use radio modules. Sure, sometimes you want to talk to a computer (a good time to use...

Adafruit RFM69HCW Transceiver Radio Breakout - 868 or 915 MHz
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Price: $18.95
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Adafruit Item #: ADA-3070 -

"You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat." Sending data over long distances is like magic, and now you can be a magician with this range of powerful and easy-to-use radio modules. Sure, sometimes you want to talk to a computer (a good time to use...

Adafruit SGP30 Air Quality Sensor Breakout - VOC and eCO2
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Price: $37.99
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Adafruit Item #: ADA-3709 -

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...