In this tutorial we'll learn how to use Pulse Width Modulation (PWM) to control the brightness of an LED and then modify the code to use a vertical slider to control the brightness.

• Sparkfun Inventors Kit for LabVIEW Setup

• Sparkfun RedBoard
• 1x LED (any color)

• LabVIEW
• NI-VISA
• LINX

• Open the LINX - PWM One Channel example from the LabVIEW Example Finder.
  
  
• Select the PWM channel connected to the LED.
  
  
• Run the VI, and use the numeric control the change the PWM duty cycle.
  
  
• Modify the VI use a vertical slider to control the LED brightness.

• Modify the code to automatically cycle through brightness values.