Analog Output (PWM)

This example shows how to use the I/O Control Panels to control an analog output (a LED on pin 6).

Wiring diagram

Connect a LED on pin 6.

Sketch

Upload this program : 1_Basics \ 3_AnalogOutput

In this program, we start by initializing our base library HITIComm with HC_begin().

Then we place HC_communicate() inside the loop() to continuously handle communication between your Arduino and HITIPanel. This function also retrieves in the background the I/O configuration and values.

After, we configure pin 6 as an OUTPUT using pinMode() and we use HC_outputType(pin, type) to inform HITIPanel that this is a PWM output.

Finally, we switch the LED on at start and we set a medium intensity using analogWrite().

#include <HITIComm.h>

const int pin_LED = 6;

void setup()
{
  // initialize library
  HC_begin();
  
  // set pins mode
  pinMode(pin_LED, OUTPUT);

  // set output type
  HC_outputType(pin_LED, HIGH); // High = PWM, Low = Digital

  // switch ON the LED with medium intensity
  analogWrite (pin_LED, 127);
}

void loop()
{
  // communicate with HITIPanel
  HC_communicate();
}

Control Panels

1) Display the I/O Control Panels (“IO” button).

2) As expected, the analog value is 127, as set in the setup(). Change this value to change the LED intensity.