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chipKIT™ Motor Shield™ Reference Manual
Revised April 16, 2013
This manual applies to the chipKIT Motor Shield rev. D
Overview
The chipKIT™ Motor Shield is an expansion board for use with the chipKIT Uno32 and chipKIT uC32. It provides
additional circuitry and connectors for the Uno32 and uC32 to drive various motors types.
The chipKIT Motor Shield is designed to drive DC motors, servo motors, and stepper motors. It also provides
2
additional I/O via an I
C I/O extender.
The chipKIT Motor Shield.
1
Functional Description
The chipKIT Motor Shield is designed to be used with the chipKIT Uno32 or chipKIT uC32 board. When used with
these boards, the microcontroller and shield provide the necessary supporting hardware and connectors to control
most types of small motors. The rest of this document will only reference the Uno32; however, the shield can also
be used with the chipKIT uC32.
DOC#: 502-262
Other product and company names mentioned may be trademarks of their respective owners.
Features include:
Two DC motor driver channels, accessible
with either a JST 6-pin connector or a
terminal block.
Two DC motor encoder input signals for
each DC motor channel.
Four servo motor channels.
2
I
C General purpose I/O expander with 4
LEDs 2 push buttons and 2 user settable
jumpers.
One 4-wire unipolar stepper motor channel.
Standard chipKIT Shield connectors.
Copyright Digilent, Inc. All rights reserved.
1300 Henley Court
Pullman, WA 99163
509.334.6306
www.digilentinc.com
Page 1 of 8

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Summary of Contents for Digilent chipKIT Motor Shield

  • Page 1 The chipKIT Motor Shield. Functional Description The chipKIT Motor Shield is designed to be used with the chipKIT Uno32 or chipKIT uC32 board. When used with these boards, the microcontroller and shield provide the necessary supporting hardware and connectors to control most types of small motors.
  • Page 2 5 Volt Uno32 power supply. J11 & J15: Digital Signal Pass-Through Connectors This connector passes the digital I/O pins on the Uno32 through to the chipKIT Motor Shield. J21: I C #1 Daisy Chain Connector...
  • Page 3 This connector passes the analog input pins on the Uno32 through the chipKIT Motor Shield. J22: Power Pass-Through Connector This connector passes the power connector from the Uno32 through the chipKIT Motor Shield, and powers the chipKIT Motor Shield from the Uno32.
  • Page 4: Stepper Motor Controller

    There are two Schmitt trigger buffered inputs on connectors J3, J6, J8 and J9 that bring motor speed feedback signals to the controlling system board. The Digilent motor and gearbox have hall-effect sensors arranged in a quadrature encoder format. These buffers have 5V tolerant inputs, when operated at 3.3V.
  • Page 5 The on-board pull-ups are enabled by install shorting blocks on JP7 and JP8. Removing the shorting blocks disables the pull-ups. Digilent has several small I/O modules available that can be connected using the I C connector. These include a 3- axis accelerometer, 4-channel, 12-bit A/D converter, serial character LCD panel, 3-axis gyroscope, and a real-time clock/calendar.
  • Page 6 Motor Shield™ Reference Manual Appendix: chipKIT Motor Shield Pin-out Tables J1 Pins Uno32 PIC32 Signal Notes Pin # Pin # J1-01 VM (motor driver power supply) 2.7-10.8 V J1-02 J2 Pins Uno32 PIC32 Signal Notes Pin # Pin #...
  • Page 7 Uno32 PIC32 Signal Notes Pin # Pin # JP3-01 IC1/INT1/RD8 JP3-02 SB1-IN Select with jumper JP3-03 IC4/PMCS1/PMAI4/INT4/R11 Copyright Digilent, Inc. All rights reserved. Page 7 of 8 Other product and company names mentioned may be trademarks of their respective owners.
  • Page 8 Pin # Pin # J21-01 SCL1/RG2 J21-02 SCL1/RG2 J21-03 SDA1/RG3 J21-04 SDA1/RG3 J21-05 J21-06 J21-07 VCC3V3 J21-08 VCC3V3 Copyright Digilent, Inc. All rights reserved. Page 8 of 8 Other product and company names mentioned may be trademarks of their respective owners.
  • Page 9 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Digilent 410-262P-KIT 410-262...