/*
#define PIN_TRIG 20
#define PIN_ECHO 21
#include <SevSeg.h>

SevSeg sevseg;

uint16_t duration = 0;
uint32_t interval = 0;

float distance = 0;

void setup()
{
  uint8_t numDigits = 4;
  uint8_t digitPins[] = {9, 2, 4, 7};
  uint8_t segmentPins[] = {0, 4, 10, 12, 13, 1, 8, 10};
  uint8_t displayType = COMMON_ANODE; // (Common Anode or Common Cathode)

  bool resistorsOnSegments = false;
  bool updateWithDelays = false;
  bool leadingZeros = false;
  bool disableDecPoint = false;

  pinMode(PIN_TRIG, OUTPUT);
  pinMode(PIN_ECHO, INPUT);

  sevseg.begin(displayType, numDigits, digitPins, segmentPins, resistorsOnSegments,
               updateWithDelays, leadingZeros, disableDecPoint);
  sevseg.setBrightness(90);
}

void loop()
{
if ((millis() - interval) > 100) {

  interval = millis();
  digitalWrite(PIN_TRIG, HIGH);
  delayMicroseconds(10);
  digitalWrite(PIN_TRIG, LOW);
  int duration = pulseIn(PIN_ECHO,HIGH);

  distance = (distance / 2) / 29;

sevseg.setNumber(distance);
}
sevseg.refreshDisplay();
}


/* SevSeg Counter Example
 
 Copyright 2020 Dean Reading
 
 This example demonstrates a very simple use of the SevSeg library with a 4
 digit display. It displays a counter that counts up, showing deci-seconds.
 */
/*
#include "SevSeg.h"
SevSeg sevseg; //Instantiate a seven segment controller object

void setup() {
  byte numDigits = 4;
  byte digitPins[] = {9, 2, 3, 7};
  byte segmentPins[] = {0, 4, 10, 12, 13, 1, 8, 10};
  bool resistorsOnSegments = false; // 'false' means resistors are on digit pins
  byte hardwareConfig = COMMON_ANODE; // See README.md for options
  bool updateWithDelays = false; // Default 'false' is Recommended
  bool leadingZeros = false; // Use 'true' if you'd like to keep the leading zeros
  bool disableDecPoint = false; // Use 'true' if your decimal point doesn't exist or isn't connected
  
  sevseg.begin(hardwareConfig, numDigits, digitPins, segmentPins, resistorsOnSegments,
  updateWithDelays, leadingZeros, disableDecPoint);
  sevseg.setBrightness(90);
}

void loop() {
  static unsigned long timer = millis();
  static int deciSeconds = 0;
  
  if (millis() - timer >= 100) {
    timer += 100;
    deciSeconds++; // 100 milliSeconds is equal to 1 deciSecond
    
    if (deciSeconds == 10000) { // Reset to 0 after counting for 1000 seconds.
      deciSeconds=0;
    }
    sevseg.setNumber(deciSeconds, 1);
  }

  sevseg.refreshDisplay(); // Must run repeatedly
}

/// END ///

*/
/*
#define PIN_TRIG 20
#define PIN_ECHO 21
#include <SevSeg.h>

SevSeg sevseg;

uint16_t duration = 0;
uint32_t interval = 0;

float distance = 0;

void setup()
{
  uint8_t numDigits = 4;
  uint8_t digitPins[] = {9, 2, 3, 7};
  uint8_t segmentPins[] = {0, 4, 10, 12, 13, 1, 8, 11};
  uint8_t displayType = COMMON_ANODE; // (Common Anode or Common Cathode)

  bool resistorsOnSegments = false;
  bool updateWithDelays = false;
  bool leadingZeros = false;
  bool disableDecPoint = false;

  pinMode(PIN_TRIG, OUTPUT);
  pinMode(PIN_ECHO, INPUT);

  sevseg.begin(displayType, numDigits, digitPins, segmentPins, resistorsOnSegments,
               updateWithDelays, leadingZeros, disableDecPoint);
  sevseg.setBrightness(90);
  Serial.begin(115200);
}

void loop()
{
if ((millis() - interval) > 0) {
  interval = millis();

  digitalWrite(PIN_TRIG, HIGH);
  delayMicroseconds(10);
  digitalWrite(PIN_TRIG, LOW);
  delayMicroseconds(5);
  int duration = pulseIn(PIN_ECHO,HIGH);
  
  Serial.print("distance in CM:");
  Serial.println(duration / 58);
  distance = (duration / 58);
  delay(1000);
sevseg.setNumber(distance);
}
sevseg.refreshDisplay();
}
*/
// HC-SR04 Ultrasonic Distance Sensor with 7 Segment Display
#define TRIG_PIN 20
#define ECHO_PIN 21
#include <SevSeg.h>

SevSeg sevseg;

uint16_t duration = 0;
uint32_t interval = 0;

float distance = 0;

void setup()
{
  uint8_t numDigits = 4;
  uint8_t digitPins[] = {8, 2, 3, 7};
  uint8_t segmentPins[] = {0, 4, 10, 12, 13, 1, 8, 11};
  uint8_t displayType = COMMON_ANODE; // (Common Anode or Common Cathode)

  bool resistorsOnSegments = false;
  bool updateWithDelays = false;
  bool leadingZeros = false;
  bool disableDecPoint = false;

  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);

  sevseg.begin(displayType, numDigits, digitPins, segmentPins, resistorsOnSegments,
               updateWithDelays, leadingZeros, disableDecPoint);
  sevseg.setBrightness(90);
  Serial.begin(115200);
}

void loop()
{
  if ((millis() - interval) >= 100) {
    interval = millis();

    digitalWrite(TRIG_PIN, LOW);
    delayMicroseconds(5);
    digitalWrite(TRIG_PIN, HIGH);
    delayMicroseconds(10);
    digitalWrite(TRIG_PIN, LOW);
    
    // Read time of the trig and echo pins
    duration = pulseIn(ECHO_PIN, HIGH);
    Serial.print("distance in cm:");
    Serial.println(duration / 58);
    delay(1000);
    // Calculates the distance
    distance = (duration / 2) / 29;

    sevseg.setNumber(distance);
  }

  sevseg.refreshDisplay();
}