PWM.ino

/* =============================================================================
  LIDAR-Lite v2: PWM operation

  This example demonstrates how to read measurements from LIDAR-Lite v2 "Blue
  Label" using PWM

  The library is in BETA, so subscribe to the github repo to recieve updates, or
  just check in periodically:
  https://github.com/PulsedLight3D/LIDARLite_v2_Arduino_Library

  To learn more read over lidarlite.cpp as each function is commented
=========================================================================== */

unsigned long pulse_width;

void setup()
{
  Serial.begin(115200); // Start serial communications
  pinMode(2, OUTPUT); // Set pin 2 as trigger pin
  pinMode(3, INPUT); // Set pin 3 as monitor pin
  digitalWrite(2, LOW); // Set trigger LOW for continuous read
}

void loop()
{
  pulse_width = pulseIn(3, HIGH); // Count how long the pulse is high in microseconds
  if(pulse_width != 0){ // If we get a reading that isn't zero, let's print it
        pulse_width = pulse_width/10; // 10usec = 1 cm of distance for LIDAR-Lite
  	Serial.println(pulse_width); // Print the distance
  }
}