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Project #11: ESP32 Feather - Real Time Clock - Mk03

ESP32 Feather Display Real Time Clock

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Project #11: ESP32 Feather - Real Time Clock - Mk03

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Code

DL1908Mk03p.ino

Arduino
// ***** Don Luc Electronics © *****
// Software Version Information
// Project #11: HUZZAH32 ESP32 Feather - DS3231 Precision RTC - Mk03
// 08-03
// DonLuc1908Mk03p.ino 11-03
// Adafruit HUZZAH32 ESP32 Feather Board
// SHARP Display
// LED Green
// Push Button
// DS3231 Precision RTC 

// include Library Code
#include <Adafruit_SharpMem.h>
#include <Adafruit_GFX.h>
#include <RTClib.h>
#include <Wire.h>

// SHARP Memory Display
// any pins can be used
#define SHARP_SCK  13
#define SHARP_MOSI 12
#define SHARP_SS   27
// Set the size of the display here, e.g. 144x168!
Adafruit_SharpMem display(SHARP_SCK, SHARP_MOSI, SHARP_SS, 144, 168);
// The currently-available SHARP Memory Display (144x168 pixels)
// requires > 4K of microcontroller RAM; it WILL NOT WORK on Arduino Uno
// or other <4K "classic" devices!
#define BLACK 0
#define WHITE 1
int minorHalfSize; // 1/2 of lesser of display width or height

// LED Green
int iLEDGreen =  21;                 // LED Green
int stateLEDGreen = LOW;             // stateLEDGreen 

// Button
int iBut1 = 17;                      // Button 1
int ButState1;                       // Variable for reading the button status
int previous = LOW;                  // previous
long lTime = 0;                      // lTime
long debounce = 500;                 // debounce

// DS3231 Precision RTC 
RTC_DS3231 RTC;
String sDate;
String sTime;

void loop() {
  
  // Read the state of the button value
  ButState1 = digitalRead(iBut1);
  
  // Check if the button is pressed
  if (ButState1 == HIGH && previous == LOW && millis() - lTime > debounce) 
  {

     if(stateLEDGreen == HIGH)
     {
      
        // stateLEDGreen = LOW
        stateLEDGreen = LOW;
        // DS3231 Precision RTC 
        timeRTC();
        // SHARP Memory Display Off
        isDisplayOff();

             
     } else 
     {

        // stateLEDGreen = HIGH
        stateLEDGreen = HIGH;
        // DS3231 Precision RTC 
        timeRTC(); 
        // SHARP Memory Display On
        isDisplayOn();
            
    }
    lTime = millis();

  } 

  // iLEDGreen
  digitalWrite(iLEDGreen, stateLEDGreen);
  previous == ButState1;  
 
}

getDisplay.ino

Arduino
// Display
// SHARP Memory Display On
void isDisplayOn() {

    // Clear Display
    display.clearDisplay();
    // text display date, time, LED on
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    display.setCursor(10,10);
    display.println( sDate );
    display.setCursor(10,30);
    display.println( sTime );
    display.setTextSize(3);
    display.setCursor(10,55);
    display.println("LED On");
    display.refresh();

}
// SHARP Memory Display Off
void isDisplayOff() {

    // Clear Display
    display.clearDisplay();
    // text display date, time, LED off
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    display.setCursor(10,10);
    display.println( sDate );
    display.setCursor(10,30);
    display.println( sTime );
    display.setTextSize(3);    
    display.setCursor(10,55);
    display.println("LED Off");
    display.refresh();

}

getRTCDS3231.ino

Arduino
// DS3231 Precision RTC 
void setupRTC() {

  // DS3231 Precision RTC   
  RTC.begin();
  if (! RTC.begin()) {
    while (1);
  }
  
  DateTime now = RTC.now();

  if (RTC.lostPower()) {
    // Following line sets the RTC to the date & time this sketch was compiled
    RTC.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }
  
}
// timeRTC
void timeRTC() {

    // DS3231 Precision RTC 
    sDate = "";
    sTime = "";
    
    DateTime now = RTC.now();

    // sData
    sDate += String(now.year(), DEC);
    sDate += "/";
    sDate += String(now.month(), DEC);
    sDate += "/";
    sDate += String(now.day(), DEC);
    
    // sTime
    sTime += String(now.hour(), DEC);
    sTime += ":";
    sTime += String(now.minute(), DEC);
    sTime += ":";
    sTime += String(now.second(), DEC);

}

setup.ino

Arduino
// Setup
void setup() {

  // SHARP Display start & clear the display
  display.begin();
  display.clearDisplay();

  // Button 1
  // Initialize the button as an input
  pinMode(iBut1, INPUT);
  
  // Initialize the LED Green
  pinMode(iLEDGreen, OUTPUT);

  // DS3231 Precision RTC 
  setupRTC();

  // stateLEDGreen = LOW
  stateLEDGreen = LOW;
  // DS3231 Precision RTC 
  timeRTC();
  // SHARP Memory Display Off
  isDisplayOff();  
    
}

Credits

NeoSteamLabs
40 projects • 15 followers
Luc Paquin Microcontrollers, IoT, Robotics Experts https://www.donluc.com https://www.donluc.com/luc https://www.linkedin.com/in/jlucpaquin
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Related channels and tags
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