4 2011-11-29 SparkFun <p> <strong>Description:</strong> This is the Arduino shield version of our TLC5940 Breakout. The PWM Shield will allow you to generate up to 16 PWM signals from your Arduino by utilizing the power of the TLC5940 IC. All 16 PWM channels are broken out to standard 0.1&quot; headers, which run alongside convenient voltage and ground rails. Because the IC can be daisy-chained, output headers are broken out on one side of the shield and can be connected to our TLC5940 Breakout to further expand your PWM capabilities.&nbsp;</p> <p> Use this board to increase the number of PWM pins available to your microcontroller for applications such as monocolor, multicolor or full-color LED displays, LED signboards, display backlighting, servo control, or any other project where a large number of PWM drivers are necessary.</p> <p> <strong>Note: </strong>While each 3-pin PWM header is 0.1&quot; spaced, the space between each header is slightly larger in order to accommodate servo connections. In order to make this board suitable for use with servos, 2.2k pull-up resistors have been included on each output as well. Finally, the 2.2k resistor on the Iref pin sets the output current to 17.8mA but a parallel through-hole connection is provided for an additional resistor to increase the current if necessary. To determine the resistor value you need for a given output check the equations provided on the schematic below.</p> <p> <strong>Documents:</strong></p> <ul> <li> <a href="http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Dev/Arduino/Shields/PWM-Shield-v12.pdf" target="_blank">Schematic</a></li> <li> <a href="http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Dev/Arduino/Shields/PWM-Shield-v12.zip" target="_blank">Eagle Files</a></li> <li> <a href="http://www.sparkfun.com/datasheets/Components/General/tlc5940.pdf" target="_blank">Datasheet</a> (TLC5940)</li> <li> <a href="http://code.google.com/p/tlc5940arduino/" target="_blank">Arduino Library</a></li> <li> <a href="http://www.arduino.cc/playground/Learning/TLC5940" target="_blank">Arduino Example</a></li> </ul> PWM Shield http://www.sparkfun.com/products/10615 PWM Shield Pulse Width Modulation Analog Write 4096 PWM 17V 16 3V-5.5V GND

VCC

OUT9

GND

VCC

OUT0

GND

VCC

OUT1

GND

VCC

OUT2

GND

VCC

OUT3

GND

VCC

OUT4

GND

VCC

OUT5

GND

VCC

OUT6

GND

VCC

OUT7

GND

VCC

OUT8

GSCLK

XLAT

BLANK

SOUT

SCLK

VCC

GND

GND

VCC

OUT10

GND

VCC

OUT11

GND

VCC

OUT12

GND

VCC

OUT13

GND

VCC

OUT14

GND

VCC

OUT15

VIN

GND

GND

VIN

GND

VIN

3.3V

5V_A

A0

A1

A2

A3

A4

A5

AREF

D2

GSCLK - D3

D4

D5

D6

D7

D8

XLAT - D9

BLANK - D10

SIN - D11

D12

SCLK - D13

GND - GND@0

GND - GND@1

GND - GND@2

RES

RX

TX