The original Adafruit Motorshield kit is one of our most beloved kits,
which is why we decided to make something even better. We have
upgraded the shield kit to make the bestest, easiest way to drive DC
and Stepper motors. This shield will make quick work of your next
robotics project! We kept the ability to drive up to 4 DC motors or 2
stepper motors, but added many improvements:
Instead of a L293D darlington driver, we now have the TB6612 MOSFET
driver: with 1.2A per channel and 3A peak current capability. It also
has much lower voltage drops across the motor so you get more torque
out of your batteries, and there are built-in flyback diodes as well.
Instead of using a latch and the Arduino's PWM pins, we have a
fully-dedicated PWM driver chip onboard. This chip handles all the
motor and speed controls over I2C. Only two pins (SDA & SCL) are
required to drive the multiple motors, and 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,
Leonardo and Mega R3. (Due's Wire support is still in beta, but once
that works well we can test it on the Due)
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
Lots of other little improvements such as a polarity protection FET
on the power pins and a bit of prototyping area. And the shield is
assembled and tested here at Adafruit so all you have to do is solder
on straight or stacking headers and the terminal blocks.
Lets check out these specs again:
* 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)
* Arduino reset button brought up top
* Polarity protected 2-pin terminal block and 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 and earlier with 2
* Download the easy-to-use Arduino software library, check out the
examples and you're ready to go!
Comes with an assembled & tested shield, terminal block, plain
header, jumper. Some soldering is required to assemble the headers on.
Stacking headers not included, but we sell them in the shop so if you
want to stack shields, please pick them up at the same time. Arduino
and motors are not included but we have lots of motors in the shop and
all our hobby servos, DC motors, and stepper motors work great.
We have a great tutorial in the Adafruit Learning System with a lot
of documentation and example code, so please check it out 
 http://learn.adafruit.com/adafruit-motor-shield-v2-for-arduino … more
|Product type||Electronics module|
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