• Requires a 5V supply• Constant current drivers for ultra-bright, consistent colour•1/16 step display dimming•I2C interface• Backpack comes with address-selection jumpers so you can connect up to four mini 8x 8's or eight 7-segments (or a combination, such as four mini 8x 8's & four 7-segments, etc) on a single I2C bus. What's better than a single LED? Lots of LEDs! But adding an LED matrix can mean a lot of wiring & space. This little kit makes the whole thing simple & tidy! The product kit comes with:A fully tested & assembled LED backpack Ultra-bright 8x 8 matrix 4-pin header Adafruit have even provided a tutorial showing how to solder, wire & control the display & click here for the library to help you get started! ...

• Requires a 5V supply• Constant current drivers for ultra-bright, consistent colour•1/16 step display dimming•I2C interface• Backpack comes with address-selection jumpers so you can connect up to four mini 8x 8's or eight 7-segments (or a combination, such as four mini 8x 8's & four 7-segments, etc) on a single I2C bus. What's better than a single LED? Lots of LEDs! But adding an LED matrix can mean a lot of wiring & space. This little kit makes the whole thing simple & tidy! The product kit comes with:A fully tested & assembled LED backpack Ultra-bright 8x 8 matrix 4-pin header Adafruit have even provided a tutorial showing how to solder, wire & control the display & click here for the library to help you get started! ...

• Requires a 5V supply• Constant current drivers for ultra-bright, consistent colour•1/16 step display dimming•I2C interface• Backpack comes with address-selection jumpers so you can connect up to four mini 8x 8's or eight 7-segments (or a combination, such as four mini 8x 8's & four 7-segments, etc) on a single I2C bus. What's better than a single LED? Lots of LEDs! But adding an LED matrix can mean a lot of wiring & space. This little kit makes the whole thing simple & tidy! The product kit comes with:A fully tested & assembled LED backpack Ultra-bright 8x 8 matrix 4-pin header Adafruit have even provided a tutorial showing how to solder, wire & control the display & click here for the library to help you get started! ...

• Requires a 5V supply• Constant current drivers for ultra-bright, consistent colour•1/16 step display dimming•I2C interface• Backpack comes with address-selection jumpers so you can connect up to four mini 8x 8's or eight 7-segments (or a combination, such as four mini 8x 8's & four 7-segments, etc) on a single I2C bus. What's better than a single LED? Lots of LEDs! But adding an LED matrix can mean a lot of wiring & space. This little kit makes the whole thing simple & tidy! The product kit comes with:A fully tested & assembled LED backpack Ultra-bright 8x 8 matrix 4-pin header Adafruit have even provided a tutorial showing how to solder, wire & control the display & click here for the library to help you get started! ...

• Requires a 5V supply• Constant current drivers for ultra-bright, consistent colour•1/16 step display dimming•I2C interface• Backpack comes with address-selection jumpers so you can connect up to four mini 8x 8's or eight 7-segments (or a combination, such as four mini 8x 8's & four 7-segments, etc) on a single I2C bus. What's better than a single LED? Lots of LEDs! But adding an LED matrix can mean a lot of wiring & space. This little kit makes the whole thing simple & tidy! The product kit comes with:A fully tested & assembled LED backpack Ultra-bright 8x 8 matrix 4-pin header Adafruit have even provided a tutorial showing how to solder, wire & control the display & click here for the library to help you get started! ...

• Display is made up of 128x 32 white OLED pixels• The display makes its own light so no backlight is required• The driver chip communicates via I2C only•3.3.V regulator & level shifter included to make the screen compatible with any 5V controller• One of the easiest ways to get an OLED into your project!• Click here to view the detailed tutorial guide• To view the Arduino library please click here These displays are small, only about 1" diagonal, but very readable due to the high contrast of an OLED display. This display is made from 128x 32 individual white OLED pixels, each one is turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to run the OLED & is why the display has such high contrast; we really like this miniature display for its crispness! The driver chip SSD1306, communicates via I2C only. 3 pins are required to communicate with the chip in the OLED display, two of which are I2C data/clock pins. The OLED & driver require a 3.3V power supply & 3.3V logic levels for communication. To make it easier for our customers to use, we've added a 3.3v regulator & level shifter on board! This makes it compatible with any 5V microcontroller, such as the Arduino. The power requirements depend a little on how much of the display is lit but on average the display uses about 20m A from the 3.3V supply. Built into the OLED driver is a simple switch-cap charge pump that turns 3.3v-5v into a high voltage drive for the OLEDs, making it one of the easiest ways to get an OLED into your project! ...

• Fully dedicated PWM driver chip onboard handles all motor & speed controls over I2C• Only 2 pins, SDA & SCL, required to drive multiple motors & since its I2C you can also connect any other I2C devices or shields to the same pins. • This also makes it drop-in compatible with any Arduino, such as the Uno, Leonardo & Mega R3• Completely stackable design: 5 address-select pins means up to 32 stackable shields!•2 connections for 5V 'hobby' servos connected to the Arduino's high-resolution dedicated timer
- no jitter!•4 H-Bridges: TB6612 chipset provides 1.2A per bridge (3A peak) with thermal shutdown protection, internal kickback protection diodes• Can run motors on 4.5VDC to 13.5VDC• Up to 4 bi-directional DC motors with individual 8-bit speed selection (so, about 0.5% resolution)• Up to 2 stepper motors (unipolar or bipolar) with single coil, double coil, interleaved or micro-stepping• Motors automatically disabled on power-up• Big terminal block connectors to easily hook up wires (18-26AWG) & power• Arduino reset button brought up top• Polarity protected 2-pin terminal block & jumper to connect external power, for separate logic/motor supplies• Tested compatible with Arduino UNO, Leonardo, ADK/ Mega R3, Diecimila & Duemilanove. Works with Mega/ADK R2 & earlier with 2 wire jumpers• Please click here for a in depth tutorial guide The Adafruit Motor/ Stepper/ Servo Shield for Arduino v 2 now has the TB6612 MOSFET driver: with 1.2A per channel & 3A peak current capability. It also has much lower voltage drops across the motor so you get more torque out of your batteries, & there are built-in flyback diodes as well. Instead of using a latch & the Arduino's PWM pins, we have a fully-dedicated PWM driver chip onboard. This chip handles all the motor & speed controls over I2C. Only two pins (SDA & SCL) are required to drive the multiple motors, & since it's I2C you can also connect any other I2C devices or shields to the same pins. This also makes it drop-in compatible with any Arduino, such as the Uno, Due, Leonardo & Mega R3. Completely stackable design: 5 address-select pins means up to 32 stackable shields: that's 64 steppers or 128 DC motors! What on earth could you do with that many steppers? I have no idea but if you come up with something send us a photo because that would be a pretty glorious project & a perfect Maplin Moment. Lots of other little improvements such as a polarity protection FET on the power pins & a bit of prototyping area. & the shield is assembled & tested here at Adafruit so all you have to do is solder on straight or stacking headers & the terminal blocks.
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• Typical 1.5 Pascal resolution• Can resolve altitude at 0.3 metres• Temperature sensor with ±1°C typical accuracy This pressure sensor from Freescale is a great low-cost sensing solution for precision measurement of barometric pressure & altitude. The MPL3115A2 has a typical 1.5 Pascal resolution, which can resolve altitude at 0.3 meters (compare to the BMP180 which can do 0.17m). It has some upsides compared to the BMP180, such as interrupt outputs for ultra-low power usage, & its also a heck of a lot easier to read altitude with a built in altimeter calculation
- no calibration reading & calculating required. As a bonus, there's even a fairly good temperature sensor with ±1°C typical accuracy (±3°C max). This chip likes to be used with 2-3.6V power & logic voltages, so we placed it on a breakout with a 3V regulator & logic level shifting. Its easy to use with any Arduino or microcontroller that has i 2c capability. This chip looks & sounds a whole lot like the MPL115A2 but this is the precision version, which can act as an altitude-sensor as well as barometer Using the sensor is easy. For example, if you're using an Arduino, simply connect the VDD pin to the 5V voltage pin, GND to ground, SCL to I2C Clock (Analog 5 on an UNO) & SDA to I2C Data (Analog 4 on an UNO). Then download Adafruit's MPL3115A2 Arduino library & example code for temperature, pressure & basic altitude calculation. Install the library, & load the example sketch. Immediately you'll have the temperature, pressure & altitude data printed in the serial console.
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• Features the VS1053B codec chip
- decodes Ogg Vorbis, MP3/MP2/MP1, MP4, AAC, WMA, FLAC, WAV/PCM, MIDI. Encodes Ogg or
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• Each LED is addressable as the driver chip is inside the LED• Each one has ~18m A constant current drive so the colour will be very consistent even if the voltage varies• No external choke resistors are required making the design slim• The LEDs are 'chainable' by connecting the output of one stick into the input of another• Power the whole thing with 5VDC (4-7V works) & you're ready to rock• Please click here to see the Neo Pixel detailed guide Be the belle of the ball with the Neo Pixel Jewel! We fit seven of our the tiny 5050 (5mm x 5mm) smart RGB LEDs onto a beautiful, round PCB with mounting holes & a chainable design to create what we think is our most elegant (and evening-wear appropriate) Neo Pixel board yet. Use only one microcontroller pin to control as many as you can chain together! Each LED is addressable as the driver chip is inside the LED. Each one has ~18m A constant current drive so the color will be very consistent even if the voltage varies, & no external choke resistors are required making the design slim. Power the whole thing with 5VDC & you're ready to rock. The LEDs are 'chainable' by connecting the output of one Jewel into the input of another. There is a single data line with a very timing-specific protocol. Since the protocol is very sensitive to timing, it requires a real-time microconroller such as an AVR, Arduino, PIC, mbed, etc. It cannot be used with a Linux-based microcomputer or interpreted microcontroller such as the netduino or Basic Stamp. Our wonderfully-written Neopixel library for Arduino supports these pixels! As it requires h&-tuned assembly it is only for AVR cores but others may have ported this chip driver code so please google around. An 8 M Hz or faster processor is required. Comes as a single round board with 7 individually addressable RGB LEDs assembled & tested. ...