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Adafruit Industries Motor Shield

Photo: Limor Fried

Shield URL: Motor Shield
Tags: motor, control, output, servo, h-bridge
Maker: Adafruit Industries

Full-featured motor control shield that will be able to power many simple to medium-complexity projects.
2 connections for 5V "hobby" servos connected to the Arduino's high-resolution dedicated timer.

  • 4 H-Bridges: L293D chipset provides 0.6A per bridge (1.2A peak) with thermal shutdown protection, internal kickback protection diodes. Can run motors on 4.5VDC to 36VDC.
  • Up to 4 bi-directional DC motors with individual 8-bit speed selection.
  • Up to 2 stepper motors (unipolar or bipolar) with single coil, double coil or interleaved stepping.
  • Pull down resistors keep motors disabled during power-up.
  • Big terminal block connectors to easily hook up wires (10-22AWG) and power.
  • Arduino reset button brought up top.
  • 2-pin terminal block and jumper to connect external power, for seperate logic/motor supplies.
  • Tested compatible with Arduino Mega, Diecimila & Duemilanove.
  • Easy-to-use Arduino software library.

Open Source: Yes, OSHW-compliant
License: CC BY-SA 2.5
Source: www.ladyada.net/make/mshield/download...

D13 / SCK
D12 / MISO
3.3V D10 / SS ~
5V D9 ~
D6 ~
A0D5 ~
A2D3 ~
A4D1 / TX
A5D0 / RX
The following pins are in use only if the DC/Stepper noted is in use:
D11: DC Motor #1 / Stepper #1 (activation/speed control)
D3: DC Motor #2 / Stepper #1 (activation/speed control)
D5: DC Motor #3 / Stepper #2 (activation/speed control)
D6: DC Motor #4 / Stepper #2 (activation/speed control)

The following pins are in use if any DC/steppers are used:
D4, D7, D8 and D12 are used to drive the DC/Stepper motors via the 74HC595 serial-to-parallel latch.

The following pins are used only if that particular servo is in use:
D9: Servo #1 control.
D10: Servo #2 control.

Did I make a mistake? Tell me!