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" 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. </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" 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