Clock with SH1106 OLED display & DS1302 RTC module

Sorryforthequalityofmyphotos,Ijustdoitbadly. :)

What did I use to make the project?

• Arduino UNO board clone (you can use the original one, I'mtoopoor).
• DS1302 RTC clock module (Waveshare 9709)
• A button (it can be any button bro)
• 1, 3" OLED screen (SH1106 driver)
• 830-pin breadboard
• Connection cables

How did I put it together?

Step zero:

Put some good music on.

Step one:

Put an Arduino somewhere close to the project to attach cables.

Really,puttingitinanotherroomisnotagoodidea.

Step two:

Put a button on a board like that.

Step three:

Install the OLED and the RTC.

Step four:

Connect it, more or less like that. Here is the pinout:

OLED:

GND - Arduino GND

VCC - Arduino 5V

SCL - Arduino Analog Connector 5 (A5)

SDA - Arduino Analog Connector 4 (A4)

Button:

Left - Arduino GND

Right - Arduino Digital Connector 5 (5 or D5)

RTC:

VCC - Arduino 5V

GND - Arduino GND

I/O - Arduino Digital Connector 4 (4 or D4)

SCLK - Arduino Digital Connector 3 (3 or D3)

CE - Arduino Digital Connector 2 (2 or D2)

Step five:

Install necessary libraries:

Wire.h (should be installed/found in arduino library manager)

https://github.com/chrisfryer78/ArduinoRTClibrary

Adafruit GFX (should be found in arduino library manager)

https://github.com/wonho-maker/Adafruit_SH1106

Step six:

Write a script.

My example:

// include necessary libraries.
#include <Wire.h>
#include <virtuabotixRTC.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SH1106.h>
// configure clock - virtuabotixRTC clock(SCLK_PIN, I/O_PIN, CE_PIN)
virtuabotixRTC clock(3, 4, 2);
// Configure display
Adafruit_SH1106 display(-1);
int state = 1;
void setup() {
 pinMode(5, INPUT_PULLUP);
 display.begin(SH1106_SWITCHCAPVCC, 0x3C);
 display.setTextColor(WHITE);
 drawUI();
 display.display();
}
void loop() {
// clock sleep/turn off mode
 if (digitalRead(5) == LOW) {
   if (state == 0) {
     delay(500);
     drawUI();
     state = 1;
   }else{
     delay(500);
     display.drawRect(4, 7, 120, 50, WHITE);
     display.fillRect(5, 8, 118, 48, BLACK);
     display.setTextSize(1);
     display.setCursor(6, 12);
     display.println("Clock will turn");
     display.println(" off in a moment.");
     display.println("");
     display.println(" To turn back on,");
     display.println(" press the button.");
     display.display();
     delay(3000);
     display.clearDisplay();
     display.display();
     state = 0;
   }
 }
 if (state == 1) {
// Update time every second
   clock.updateTime();
   drawUI();
   display.setTextColor(WHITE);
   display.setTextSize(3);
   display.setCursor(1, 19);
   if (clock.hours < 10) {
     display.print("0");
   }
   display.print(clock.hours);
   display.print(":");
   if (clock.minutes < 10) {
     display.print("0");
   }
   display.print(clock.minutes);
   display.setTextSize(2);
   display.print(":");
   if (clock.seconds < 10) {
     display.print("0");
   }
   display.print(clock.seconds);
   display.setTextSize(1);
   display.setCursor(26, 48);
   if (clock.dayofweek == 1) {
     display.print("Monday,");
   }
   if (clock.dayofweek == 2) {
     display.print("Tuesday,");
   }
   if (clock.dayofweek == 3) {
     display.print("Wednesday,");
   }
   if (clock.dayofweek == 4) {
     display.print("Thursday,");
   }
   if (clock.dayofweek == 5) {
     display.print("Friday,");
   }
   if (clock.dayofweek == 6) {
     display.print("Saturday,");
   }
   if (clock.dayofweek == 7) {
     display.print("Sunday,");
   }
   display.setCursor(26, 56);
   if (clock.dayofmonth < 10) {
     display.print("0");
   }
   display.print(clock.dayofmonth);
   display.print(".");
   if (clock.month < 10) {
     display.print("0");
   }
   display.print(clock.month);
   display.print(".");
   display.print(clock.year);
   display.display();
   delay(999);
 }
}
void drawUI() {
// draw the GUI
 display.clearDisplay();
 display.setTextSize(1);
 display.setCursor(2, 2);
 display.println(" Adam's  Clock  Sleep");
 display.drawLine(0, 11, 128, 11, WHITE);
 display.drawLine(94, 0, 94, 10, WHITE);
 display.drawLine(26, 44, 102, 44, WHITE);
}

Step seven:

Install the program to your Arduino and have fun!