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SparkFun Qwiic Button - Green LED
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Price: $8.63
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Sparkfun Item #: BOB-16842 -

Buttons are an easy and tactile way to interface with your project, but why would you want to deal with debouncing, polling, and wiring up pull-up resistors? The Qwiic Button with built-in green LED simplifies all of those nasty worries away into an easy to use I2C device! Utilizing our Qwiic Connect System, using the button is as simple as connecting a cable and loading up some pre-written code! If you need multiple buttons for your project, fear not! Each button has a configurable I2C...

SparkFun Qwiic Button - Red LED
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Price: $9.07
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Sparkfun Item #: BOB-15932 -

Buttons are an easy and tactile way to interface with your project, but why would you want to deal with debouncing, polling, and wiring up pull-up resistors? The Qwiic Button with built-in red LED simplifies all of those nasty worries away into an easy to use I2C device! Utilizing our Qwiic Connect System, using the button is as simple as connecting a cable and loading up some pre-written code! If you need multiple buttons for your project, fear not! Each button has a configurable I2C address,...

SparkFun Qwiic Button Breakout
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Price: $6.48
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Sparkfun Item #: BOB-15931 -

Buttons are an easy and tactile way to interface with your project, but why would you want to deal with debouncing, polling, and wiring up pull-up resistors? The SparkFun Qwiic Button Breakout simplifies all of those nasty worries away into an easy to use I2C device! Utilizing our Qwiic Connect System, using the button is as simple as connecting a cable and loading up some pre-written code! This breakout allows you to choose which color 12mm illuminated button you want to solder onto your...

SparkFun Qwiic Dual Solid State Relay
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Price: $246.43
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Sparkfun Item #: COM-16810 -

The SparkFun Qwiic Dual Solid State Relay is a power delivery board that allows users to switch two AC loads from a low power microcontroller using the SparkFun Qwiic connect system. The board features two 25A/250VAC solid state relays that utilize the Zero Cross Trigger method so you can toggle two loads on a 60Hz AC carrier signal on and off up to 120 times per second! An ATTiny84 acts as the "brain" of the SparkFun Qwiic Dual Solid Relay to accept I2C commands to toggle the two relays as...

SparkFun Qwiic EEPROM Breakout - 512Kbit
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Price: $7.39
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Sparkfun Item #: COM-18355 -

The SparkFun Qwiic EEPROM Breakout is a simple and cost effective option to add some extra storage space to any project. With 512 kilo-bits (or 64 kilo-bytes) of storage, this product is great for any microcontroller that doesn't have any EEPROM storage space, like the SAMD21. You can use the Qwiic EEPROM for storing data like GPS waypoints and other user settings that need to be maintained between sketch uploads. The SparkFun Qwiic EEPROM has three address jumpers, allowing for up to eight...

SparkFun Qwiic GPIO
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Price: $9.78
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Sparkfun Item #: DEV-17047 -

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 eight new pins to your Qwiic project! The Sparkfun Qwiic GPIO is an I²C device based around the TCA9534 I/O Expander IC from Texas Instruments. The board adds an additional eight IO pins which you can read and write just like any other digital pin on...

SparkFun Qwiic Haptic Driver - DA7280
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Price: $24.56
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Sparkfun Item #: ROB-17590 -

The SparkFun Qwiic Haptic Driver includes an itty-bitty, Linear Resonant Actuator (LRA) vibration motor and Dialog Semiconductor's DA7280 motor driver IC for applications that require haptic feedback. Control the vibration motor with the DA7280 via I2C, PWM, or a combination of three general purpose input pins. Utilizing our handy Qwiic system, no soldering is required to connect it to the rest of your system. However, we still include 0.1"-spaced PTH pads in case you prefer to use a...

SparkFun Qwiic Haptic Driver Kit - DA7280
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Price: $26.20
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Sparkfun Item #: ROB-18247 -

The Qwiic Haptic Motor Driver Kit includes an itty-bitty, Linear Resonant Actuator (LRA) vibration motor, wires, and the breakout board for Dialog Semiconductor's DA7280 motor driver IC for applications that require haptic feedback. This kit is intended for applications where the vibration motor needs to be mounted separately from the board. Please be aware that you will need to manually solder the wires and motor to the board. Control the vibration motor with the DA7280 via I2C, PWM, or a...

SparkFun Qwiic Joystick
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Price: $17.94
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Sparkfun Item #: COM-15168 -

Now, you can easily add an HID/controller to your project! The SparkFun Qwiic Joystick combines the convenience of the Qwiic connection system and an analog joystick that feels reminiscent of the thumbstick from a PlayStation 2 controller and for that reason it's become a favorite of ours. The only thing that could make it better is a "smart" version, so we made one! With the pre-installed firmware, the ATtiny85 is acts as an intermediary (microcontroller) for the analog and digital inputs...

SparkFun Qwiic Keypad - 12 Button
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Price: $17.25
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Sparkfun Item #: COM-15290 -

Keypads are very handy input devices, but who wants to tie up seven GPIO pins, wire up a handful of pull-up resistors, and write firmware that wastes valuable processing time scanning the keys for inputs? The SparkFun Qwiic Keypad comes fully assembled and makes the development process for adding a 12 button keypad easy. No voltage translation or figuring out which I2C pin is SDA or SCL, just plug and go! Utilizing our handy Qwiic system, no soldering is required to connect it to the rest of...

SparkFun Qwiic LED Stick - APA102C
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Price: $16.35
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Sparkfun Item #: COM-18354 -

The SparkFun Qwiic LED Stick features ten addressable APA102 LEDs, making it easy to add full color LED control using I2C. Write to individual LEDs to display a count in binary, or write to the whole strip for cool lighting effects. You can even add more LEDs to the end if you need to. We’ve written an Arduino library and Python package that take care of the I2C and communication to the LEDs so all you have to do is decide what color each LED should be. The LED Stick has a default I2C address...

SparkFun Qwiic micro:bit Breakout
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Price: $10.47
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Sparkfun Item #: BOB-16445 -

The SparkFun Qwiic micro:bit Breakout is a board that connects to the BBC micro:bit and expands the capabilities of the development platform by providing access to more pins and allowing for connections to the I2C and SPI buses. This breakout board for the micro:bit’s edge connector allows intermediate and advanced users to connect the micro:bit to breadboards and other Qwiic sensors, motors, LEDs and more. The micro:bit on its own has three digital/analog input/output rings available for you...

SparkFun Qwiic micro:bit Breakout (with Headers)
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Price: $11.71
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Sparkfun Item #: BOB-16446 -

The SparkFun Qwiic micro:bit Breakout is a board that connects to the BBC micro:bit and expands the capabilities of the development platform by providing access to more pins and allowing for connections to the I2C and SPI buses. We've already attached headers to this version of the board so you don't need to worry about any soldering! This breakout board for the micro:bit’s edge connector allows intermediate and advanced users to connect the micro:bit to breadboards and other Qwiic sensors,...

SparkFun Qwiic Motor Driver
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Price: $29.49
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Sparkfun Item #: ROB-15451 -

The SparkFun Qwiic Motor Driver takes all the great features of the Serial Controlled Motor Driver (SCMD) and miniaturizes them, adding Qwiic ports for plug and play functionality. Boasting the same 4245 PSOC and 2-channel motor ports as the SCMD, the SparkFun Qwiic Motor Driver is designed to communicate over I2C to make setting up your next robotic project as fast and easy as possible! Utilizing our handy Qwiic system and screw terminals for motor and power hook-up, no soldering is required...

SparkFun Qwiic MP3 Trigger
Price: $32.78
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Sparkfun Item #: DEV-16892 -

Sometimes you just need an MP3 to play. Whether it's a theme song as you enter the room or a power song when you are working out. The SparkFun Qwiic MP3 Trigger takes care of all the necessary requirements, all you need to do is send a simple I2C command and listen to whatever is on your micro SD card. Utilizing our handy Qwiic system, no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1"-spaced pins in case you prefer to use a breadboard....

SparkFun Qwiic MultiPort
Price: $3.20
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Sparkfun Item #: BOB-18012 -

Qwiic is a very efficient way to quickly prototype an idea but not all Qwiic-enabled devices have two ports. The SparkFun Qwiic MultiPort adds additional ports to boards that have only one Qwiic port on the I2C bus. Once added, you can use it as a hub to add as many I2C devices to the bus as you need! Included are mounting holes so that the board can be secured to any system. The SparkFun Qwiic Connect System is an ecosystem of I2C sensors, actuators, shields and cables that make prototyping...

SparkFun Qwiic Mux Breakout - 8 Channel (TCA9548A)
Price: $19.86
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Sparkfun Item #: BOB-16784 -

Do you have too many sensors with the same I2C address? Put them on the SparkFun Qwiic Mux Breakout to get them all talking on the same bus! The Qwiic Mux Breakout enables communication with multiple I2C devices that have the same address that makes it simple to interface with. The Qwiic Mux also has eight configurable addresses of its own, allowing for up to 64 I2C buses on a connection. To make it even easier to use this multiplexer, all communication is enacted exclusively via I2C,...

SparkFun Qwiic Quad Relay
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Price: $49.20
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Sparkfun Item #: COM-16566 -

The SparkFun Qwiic Quad Relay is a unique power accessory board that has been designed for switching not one but four high powered devices from your Arduino or another low powered microcontroller using I2C. Taking a look at the board, the Quad Relay has four individual relays rated up to 5 Amps per channel at 250VAC or 30VDC. Each channel also has its own uniquely colored LED, silk for easy identification, and screw terminals for optional connection. Utilizing our handy Qwiic system, no...

SparkFun Qwiic Quad Solid State Relay Kit
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Price: $74.75
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Sparkfun Item #: KIT-16833 -

The SparkFun Qwiic Quad Solid State Relay Kit takes one of our favorite solid state relays and lets you place up to four of them on a single PCB to control all of them via I2C from your desired microcontroller. Each relay is rated to 40A @ 28-380 VAC so with all four on board you can control some serious power all from the easy-to-use Qwiic Connect System. The kit requires no soldering but there is some minor assembly required to attach the relays to the board and to connect your AC load. The...

SparkFun Qwiic Shield for Teensy
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Price: $7.76
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Sparkfun Item #: DEV-17119 -

The SparkFun Qwiic Shield for Teensy provides you with a quick and easy way to enter into SparkFun's Qwiic ecosystem with your Teensy boards. This shield is sized to work with the footprint of Teensy 4.0, Teensy 3.2, and Teensy LC. This shield connects the I2C bus (GND, 3.3V, SDA, and SCL) on your Teensy to four SparkFun Qwiic connectors (two horizontally and two vertically mounted). The Qwiic ecosystem allows for easy daisy chaining so, as long as your devices are on different addresses, you...

SparkFun Qwiic Shield for Teensy - Extended
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Price: $9.07
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Sparkfun Item #: DEV-17156 -

The SparkFun Extended Qwiic Shield for Teensy provides you with a quick and easy way to enter into SparkFun's Qwiic ecosystem with your Teensy boards. This shield is sized to work with the footprint of Teensy 4.1, Teensy 3.6, and Teensy 3.5. This shield connects the I2C bus (GND, 3.3V, SDA, and SCL) on your Teensy to four SparkFun Qwiic connectors (two horizontally and two vertically mounted). The Qwiic ecosystem allows for easy daisy chaining so, as long as your devices are on different...

SparkFun Qwiic Single Relay
Price: $21.28
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Sparkfun Item #: COM-15093 -

Have you ever wanted to control something powerful or have you ever needed to turn on/off a high power device from your Arduino or another low powered microcontroller? The SparkFun Qwiic Single Relay provides you with the easiest to use relay yet. The Single Relay board can handle up to 5.5A at 240VAC for long periods of time and allows you to control large power loads with simple I2C commands. Utilizing our handy Qwiic system, and on-board screw terminals, no soldering is required to connect...

SparkFun Qwiic Twist - RGB Rotary Encoder Breakout
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Price: $37.70
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Sparkfun Item #: DEV-15083 -

The SparkFun Qwiic Twist is a digital RGB rotary encoder breakout that is also able to connect to our Qwiic Connect System. The Twist takes care of all the various interrupts, switches, PWM'ing of LEDs, and presents all those features over an easy-to-use I2C interface. The Qwiic Twist was designed to get rid of the large mass of wires that are needed to implement an RGB encoder in a breadboard enabling you to stop messing around with interrupt debugging and get back to your project! Utilizing...

SparkFun QwiicBus - EndPoint
Price: $18.19
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Sparkfun Item #: COM-16988 -

The SparkFun QwiicBus EndPoint is the fastest and easiest way to extend the range of your I2C communication bus. The breakout uses NXP’s PCA9615 IC, which converts the two default I2C signals into four differential signals, two for SCL and two for SDA. The differential signals are sent over an Ethernet cable, which attaches to the breakout through the on-board RJ-45 connectors. The differential signaling allows the I2C signals to reach distances of up to 100ft. while still maintaining their...

SparkFun QwiicBus - MidPoint
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Price: $34.42
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Sparkfun Item #: COM-18000 -

The SparkFun QwiicBus MidPoint works in tandem with the QwiicBus Endpoint so you can extend the range of your I2C bus and easily tap into it to drop in devices wherever you would like. The QwiicBus uses NXP’s PCA9615 IC, which converts the two default I2C signals into four differential signals, two for SCL and two for SDA. The differential signals sent over Ethernet cables from the EndPoint connect to the breakout through the on-board RJ-45 connectors. The differential signaling allows the I2C...

SparkFun Real Time Clock Module
Price: $28.80
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Sparkfun Item #: BOB-12708 -

This is the SparkFun Real Time Clock (RTC) Module, this little breakout that uses the DS1307 to keep track of the current year, month, day as well as the current time. The module comes fully assembled and includes a small CR1225 Lithium coin cell battery that will run the RTC for a minimum of 9 years (17 years typical) without an external 5V power supply. The DS1307 RTC is accessed via the I2C protocol. We've written a test-bed to program the modules, this code should give you some insight on...

SparkFun Real Time Clock Module - RV-1805 (Qwiic)
Price: $27.85
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Sparkfun Item #: BOB-14558 -

Get with the times, already! This SparkFun Real Time Clock (RTC) Module is a Qwiic-enabled breakout board for the RV-1805 chipset. The RTC is ultra-low power (running at only about 22nA in its lowest power setting) so it can use a supercapacitor for backup power instead of a normal battery. This means you get plenty of charge and discharge cycles without any degradation to the “battery." To make it even easier to get your readings, all communication is enacted exclusively via I2C, utilizing...

SparkFun Real Time Clock Module - RV-8803 (Qwiic)
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Price: $26.20
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Sparkfun Item #: BOB-16281 -

The SparkFun RV-8803 Real Time Clock Module is a Qwiic-enabled breakout board for the RV-8803 RTC. The RV-8803 boasts some impressive features including a temperature compensated crystal providing extremely precise time-keeping, low power consumption, and time stamp event input along with a user-programmable timing offset value. The RV-8803 also has an improved I2C interface compared to the RV-1805 RTC that removes the need to sequence commands/writes to the device. Best of all, the...

SparkFun RedBot Mainboard
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Price: $60.70
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Sparkfun Item #: ROB-12097 -

The SparkFun RedBot Mainboard is a robotic development platform that works with the Arduino IDE. The RedBot is a motor driver and Ardiuno combination with various headers and connections, eliminating the need to stack multiple shields. By using the RedBot accessory boards and your own chassis, you can design a robot to suit your needs. The RedBot comes pre-programmed with the Optiboot (Uno) bootloader. By simply connecting a USB mini-B cable, you can program it in the Arduino IDE using our...

SparkFun RFID Qwiic Reader
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Price: $32.78
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Sparkfun Item #: SEN-15191 -

The SparkFun RFID Qwiic Reader is a simple I2C based RFID breakout board for the ID-3LA, ID-12LA, and ID-20LA readers. Simply plug a reader into the headers and use a Qwiic cable, then scan your 125kHz ID tag and the unique 32-bit ID will be shown on the screen. The unit comes with a read LED and buzzer, but don't worry, there is a jumper you can cut to disable the buzzer if you want. Utilizing our handy Qwiic system, no soldering is required to connect it to the rest of your system. However,...

SparkFun RFID Reader Breakout
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Price: $3.70
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Sparkfun Item #: SEN-13030 -

This is a simple breakout board for our RFID readers. The SparkFun RFID Reader Breakout converts the 2mm pins to bread board friendly 0.1" headers. With this ability the ID-3LA, ID-12LA, and the ID-20LA you can solder the reader directly to the breakout board or use the 2mm sockets. This breakout board's edges actually fit flush within the under side the ID-12LA. The board also works with the ID-20LA, but is smaller than the edges. As stated before each pin of the RFID reader has been broken...

SparkFun RFID USB Reader
Price: $45.92
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Sparkfun Item #: SEN-09963 -

The SparkFun RFID USB Reader is a simple to use, USB to serial base unit for the ID-3LA, ID-12LA, and ID-20LA readers. Simply plug a reader into the headers and attach a miniUSB cable. Open a terminal program of your choice at 9600bps 8N1, then scan your 125kHz ID tag and the unique 32-bit ID will be shown on the screen. The unit is based on a FTDI chip and comes with a read LED and buzzer. This new revision uses SMD headers for the RFID module, and has a solder jumper which allows you to...

SparkFun RFM69 Breakout (434MHz)
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Price: $21.28
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Sparkfun Item #: WRL-12823 -

This is the SparkFun RFM69 Breakout, a small piece of tech that breaks out all the pins available on the RFM69HCW module as well as making the transceiver easy to use. The RFM69HCW is an inexpensive and versatile radio module that operates in the unlicensed ISM (Industry, Science and Medicine) radio band. It's perfect for building inexpensive short-range wireless networks of sensors and actuators for home automation, citizen science and more. This RFM69HCW operates on the 434MHz frequency and...

SparkFun RFM69 Breakout (915MHz)
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Price: $21.28
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Sparkfun Item #: WRL-12775 -

This is the SparkFun RFM69 Breakout, a small piece of tech that breaks out all the pins available on the RFM69HCW module as well as making the transceiver easy to use. The RFM69HCW is an inexpensive and versatile radio module that operates in the unlicensed ISM (Industry, Science and Medicine) radio band. It's perfect for building inexpensive short-range wireless networks of sensors and actuators for home automation, citizen science and more. This RFM69HCW operates on the 915MHz frequency and...

SparkFun RGB LED Breakout - WS2812B
Price: $6.48
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Sparkfun Item #: BOB-13282 -

This is a breakout board for the WS2812B RGB LED. The WS2812B (or "NeoPixel") is actually an RGB LED with a WS2811 built right into the LED! All the necessary pins are broken out to 0.1" spaced headers for easy bread-boarding. Several of these breakouts can even be chained together to form a display or an addressable string. Documents: Schematic Eagle Files Hookup Guide All About LEDs Datasheet (WS2812B) GitHub (Design Files & Example Code) ...

SparkFun RJ11 Breakout
Price: $3.20
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Sparkfun Item #: BOB-14021 -

This is the SparkFun RJ11 Breakout, two simple breakout boards for the common 6-pin RJ11 connector. These little boards can easily have one of our RJ11 6-Pin Connectors to work with common telephone cables. Each board features standard B/R/Y/G (Black/Red/Yellow/Green) labels on the top of the board to match a standard telephone wire. Additionally, each board has pin numbers on the back side that match with the pins on the connector. Each breakout consists of two boards -- one for each end of...

SparkFun RJ45 Breakout
Price: $1.63
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Sparkfun Item #: BOB-00716 -

RJ45 connectors are the kind that are used for Ethernet jacks, but they make great general purpose connectors when you need a lot of conductors. This is a small PCB that brings out the pins of the RJ45 connector to an in-line 0.1" footprint. Use with break-away headers for breadboarding or create your own RJ45 cable. Check the related items for Ethernet cable and connectors to go with it! We used these connectors extensively in the Sound Squid demo! Note: This is the PCB only - You can get the...

SparkFun RJ45 MagJack Breakout
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Price: $10.68
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Sparkfun Item #: BOB-13021 -

This is the SparkFun RJ45 MagJack Breakout, a simple board that will provide you with a way to put an ethernet port into your breadboard. The SparkFun RJ45 MagJack Breakout is the same one found in our very own mbed Starter Kit and breaks out each pin from the ethernet jack. This rev of the breakout is equipped with the RJ45 MagJack connector already soldered to the board which mean you no longer need to solder the connector to the board yourself or worrying about buying them separately! The...

SparkFun Rotary Encoder Breakout - Illuminated (RG/RGB)
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Price: $4.93
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Sparkfun Item #: BOB-11722 -

This is a clever little breakout board for both the RGB and R/G illuminated rotary encoders. On one side, it breaks out all of the RGB pins to standard, breadboard friendly, 0.1" headers. Turn it over and it has a footprint for the R/G version! Simply solder an encoder down to the board and you're ready to add illuminated input to your next project. Documents: Schematic Eagle Files GitHub ...

SparkFun RS232 Shifter - SMD
Price: $28.27
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Sparkfun Item #: PRT-00449 -

The smallest and easiest to use serial conversion circuit on the market! This board has one purpose in life - to convert RS232 to TTL and vice versa (TX and RX). This will allow a microcontroller to communicate with a computer. Shifter SMD is powered from the target application and can run at any voltage! That's right - power the board at 5V and the unit will convert RS232 to 5V TTL. Power the board at 2.8V and the Shifter board will convert RS232 to 2.8V CMOS TTL. Includes two indicator LEDs...

SparkFun RS232 Shifter SMD (No DB9)
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Price: $18.89
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Sparkfun Item #: PRT-08780 -

The smallest and easiest to use serial conversion circuit on the market! This board has one purpose in life - to convert RS232 to TTL and vice versa (TX and RX). This will allow a microcontroller to communicate with a computer. Shifter SMD is powered from the target application and can run at any voltage! That's right - power the board at 5V and the unit will convert RS232 to 5V TTL. Power the board at 2.8V and the Shifter board will convert RS232 to 2.8V CMOS TTL. Includes two indicator LEDs...

SparkFun S.H.O.V.E.L. (without Paracord)
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Price: $14.70
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Sparkfun Item #: TOL-17721 -

Re-introducing the Semi-Horned Oblong Versatile Eating Ladle, or as we like to call it, the S.H.O.V.E.L. This is not your run-of-the-mill spork (foon), folks! It also has a serrated knife, and a bottle cap opener, on a sturdy titanium body. Here's the best part: it's open-sourced. (No, we aren't joking.) We want to show the world that OSHW is not just circuits and PCBs. The idea of open source can be applied to just about any product . This S.H.O.V.E.L. is intended as more of a figurehead...

SparkFun SD/MMC Card Breakout
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Price: $17.25
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Sparkfun Item #: BOB-12941 -

With SD and MMC memory prices dropping, the time is right for mass storage and datalogging. This breakout board will allow you to breakout the SD/MMC socket to a standard .1" 10-pin header. Perfect for breadboarding and the likes. Board comes fully assembled and tested as shown. Features: 1.3" x 1.5" Documents: Schematic Eagle Files Datasheet (SD/MMC Socket) Hookup Guide Example MMC Interface Code GitHub (Design Files) ...

SparkFun Serial Controlled Motor Driver
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Price: $29.49
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Sparkfun Item #: ROB-13911 -

The SparkFun Serial Controlled Motor Driver (SCMD) is a DC motor driver that’s been designed to drive small DC motors with ease. The SCMD is designed to emulate a typical register-based device in operation. It can be commanded by UART, I2C or SPI communication, and it can drive a constant 1.2A load per motor (peak 1.5A) at 11V. Need more than two motors? Chain multiple SCMDs together and command them through the same serial interface. Need more current? Each board’s output can be bridged to...

SparkFun Servo Trigger
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Price: $29.49
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Sparkfun Item #: WIG-13118 -

The SparkFun Servo Trigger is a small robotics board that simplifies the control of hobby RC servo motors. When an external switch or logic signal changes state, the Servo Trigger is able to tell an attached servo motor to move from position A to position B. To use the Servo Trigger, you simply connect a hobby servo and a switch, then use the on-board potentiometers to adjust the start/stop positions and the transition time. You can use a hobby servos in your projects without having to do any...

SparkFun Servo Trigger - Continuous Rotation
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Price: $22.92
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Sparkfun Item #: WIG-13872 -

The SparkFun Continuous Rotation (CR) Servo Trigger is a small robotics board that simplifies the control of hobby RC servo motors. When an external switch or logic signal changes state, the CR Servo Trigger is able to tell an attached servo motor to move from position A to position B. To use the CR Servo Trigger, you simply connect a hobby servo and a switch, then use the on-board potentiometers to adjust the start/stop positions and the transition time. You can use a hobby servo in your...

SparkFun Shift Register Breakout - 74HC595
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Price: $6.48
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Sparkfun Item #: BOB-10680 -

This is a breakout for the SOIC version of the 74HC595 shift register IC. Clock in data and latch it to free up IO pins on your micro. All pins from the IC are broken out to standard 0.1" spaced headers. The Serial in and out pins are on opposite sides of the board with the remaining pins carried over so that multiple shift register boards can be chained together. Get started with the Shift Register Guide Documents: [Schematic](http://cdn.sparkfun.com/datasheets/BreakoutBoards/74HC595 Shift...

SparkFun Simultaneous RFID Reader - M6E Nano
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Price: $387.63
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Sparkfun Item #: SEN-14066 -

The SparkFun Simultaneous RFID Reader is an Arduino-compatible board to get you started with the M6E Nano UHF RFID Reader. Radio Frequency Identification (RFID) is becoming popular everywhere for tracking practically everything. Whether you want to get started by adding an RFID reader on your toolbox with tags on all your tools or allowing access to the tree house for your secret society meetings, this board may be for you! With the Arduino shield footprint, you can connect this directly to an...