• Comes assembled & tested with a free bonus JST cable!•5V input via PCB-style USB (Universal Serial Bus) connector• For charging single Lithium Ion/ Lithium Polymer 3.7/4.2v batteries (not for older 3.6/4.1v cells)•100m A charge current, adjustable to 500m A by soldering a jumper closed• Free 2-pin JST cable included!• For more details please click here for the datasheet Oh so adorable, this is the tiniest little lipo charger, so handy you can keep it any project box! Its also easy to use. Simply plug in the gold plated contacts into any USB (Universal Serial Bus) port & a 3.7V/4.2V lithium polymer or lithium ion rechargeable battery into the JST plug on the other end. There are two LEDs
- one red & one green. While charging, the red LED is lit. When the battery is fully charged & ready for use, the green LED turns on. Seriously, it could not get more easy. Charging is performed in three stages: first a preconditioning charge, then a constant-current fast charge & finally a constant-voltage trickle charge to keep the battery topped-up. The charge current is 100m A by default, so it will work with any size battery & USB (Universal Serial Bus) port. If you want you can easily change it over to 500m A mode by soldering closed the jumper on the back, for when you'll only be charging batteries with 500m Ah size or larger. For use with Adafruit Li Poly/ Li Ion batteries only! Other batteries may have different voltage, chemistry, polarity or pinout.
...

• For use with Adafruit Li Poly/ Li Ion batteries only!• Comes assembled & tested with a free bonus JST cable!•5V input via Micro-B USB (Universal Serial Bus) connector• For charging single Lithium Ion/ Lithium Polymer 3.7/4.2v batteries (not for older 3.6/4.1v cells)•100m A charge current, adjustable to 500m A by soldering a jumper closed Oh so handy, this little lipo charger is so small & easy to use you can keep it on your desk or mount it easily into any project! Simply plug it via any Micro USB cable into a USB (Universal Serial Bus) port & a 3.7V/4.2V lithium polymer or lithium ion rechargeable battery into the JST plug on the other end. There are two LEDs
- one red & one green. While charging, the red LED is lit. When the battery is fully charged & ready for use, the green LED turns on. Seriously, it could not get more easy. Charging is performed in three stages: first a preconditioning charge, then a constant-current fast charge & finally a constant-voltage trickle charge to keep the battery topped-up. The charge current is 100m A by default, so it will work with any size battery & USB (Universal Serial Bus) port. If you want you can easily change it over to 500m A mode by soldering closed the jumper on the front, for when you'll only be charging batteries with 500m Ah size or larger. For use with Adafruit Li Poly/ Li Ion batteries only! Other batteries may have different voltage, chemistry, polarity or pinout.MCP73831 Datasheet
...

• Onboard 5v->3v regulator provides 150m A for power-hungry cards•3v level shifting means you can use this with ease on either 3v or 5v systems• Uses a proper level shifting chip, not resistors: fewer problems, & faster read/write access• Use 3 or 4 digital pins to read & write 2 Gb+ of storage!• Activity LED lights up when the SD card is being read or written• Four 2 mounting holes• Push-push socket with card slightly over the edge of the PCB so its easy to insert & remove• Comes with 0.1" header (unattached) so you can get it on a breadboard or use wires
- your choice• Tested & assembled at the Adafruit factory• Works great with Arduino, with tons of example code & wiring diagrams Not just a simple breakout board, this micro SD adapter goes the extra mile
- designed for ease of use. To use with Arduino Connect:GND to ground 5V to 5VCLK to pin 13DO to pin 12DI to pin 11CS to pin 10 Then you can use the wonderful SDfat Lib which supports FAT & FAT32 SD cards. For details on getting started, check out Adafruits detailed tutorial which discusses micro SD cards, wiring & how to use this breakout board with an Arduino

...

• 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! ...

• 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! • This breakout can be used with either an SPI or I2C interface
- selectable by soldering two jumpers on the back• The design is completely 5V-ready, with an onboard regulator & built in boost converter• It's easier than ever to connect directly to your 3V or 5V microcontroller without needing any kind of level shifter!• Click here for the detailed tutorial guide• Also you can find a full Arduino Libray by clicking here These displays are small, only about 1" diameter, but very readable due to the high contrast of an OLED display. This display is made from 128x 64 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! This breakout can be used with either an SPI or I2C interface
- selectable by soldering two jumpers on the back. The design is completely 5V-ready, with an onboard regulator & built in boost converter. It's easier than ever to connect directly to your 3V or 5V microcontroller without needing any kind of level shifter!

...

• 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.
...