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Future Electronics Egypt

Pulse Width Modulation (PWM) Shield for Arduino

Pulse Width Modulation (PWM) Shield for Arduino

LE 144.00

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The PWM Shield will allow you to generate up to 16 PWM signals from your Arduino by utilizing the power of the  Texas instrument TLC5940 16-channel PWM chip.

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.

Note

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.

 

Schematic

Datasheet (TLC5940)

Arduino Library

Arduino Example