Arduino code:
//The sketch use an oled display 128x64 pixel I2C interface to display one or two dices.
//The display are connected
// SCL Analog5
// SDA Analog4
// Vcc +5V
//GND Ground
// the sketch uses U8g2lib as displaydriver
/*
/*
Download library :- https://drive.google.com/folderview?id=1M-bg2pQAcM4Ec86OkZ6bqy_HsRB6BrsS
*/
#include<U8g2lib.h>
#include <Wire.h>
#include<SPI.h>
#include <EEPROM.h>
U8G2_SSD1306_128X64_NONAME_2_HW_I2C oled(U8G2_R0,
U8X8_PIN_NONE);
const byte BUTTON_PIN = 7;
const byte SELECT_PIN = 10;
const byte SHUTOFFPIN = 8;
const byte SOUND_PIN = 6;
unsigned long int time = millis();
const long int warningTime = 60000; //AutoShutoff time
byte startadress = 0; //EEPROM Startadress
const byte EEPROM_ID = 0x97;//to track valid data in EEPROM
byte rollMode = 1;
int dicenr1 = 1; // Dice random number 1
int dicenr2 = 1; //Dice random number 2
int dicenumber = 1; //Dice variable One or Two
boolean BUZZ = true;//Sound on
void setup(void) {
//oled.setI2CAddress(0x3C * 2); //set display adress if needed (default 0x3C)
oled.begin();
////////////////////Set POWER On Control////////////////
pinMode(SHUTOFFPIN, OUTPUT);
digitalWrite(SHUTOFFPIN, HIGH);
////////////////////////////////////////////////////////
pinMode(SELECT_PIN, INPUT_PULLUP);
pinMode(BUTTON_PIN, INPUT_PULLUP);
pinMode(SOUND_PIN, OUTPUT);
//Serial.begin(9600);
randomSeed(analogRead(A0));
///////////////////////Check for valid data//////////////////
byte id = EEPROM.read(startadress);
if (id == EEPROM_ID) {
dicenr1 = EEPROM.read(startadress + 1);
dicenr2 = EEPROM.read(startadress + 2);
dicenumber = EEPROM.read(startadress + 3);
BUZZ = EEPROM.read(startadress + 4);
} else {
EEPROM.write(startadress, EEPROM_ID);
EEPROM.write(startadress + 1, dicenr1);
EEPROM.write(startadress + 2, dicenr2);
EEPROM.write(startadress + 3, dicenumber);
EEPROM.write(startadress + 4, BUZZ);
}
/////////////////////////////////////////////////////////////////
Roll(); //Show last Dice before shutoff
delay(1000);
}
void loop(void) {
///////////////Select one or Two Dice////////////
if (digitalRead(SELECT_PIN) == LOW) {
long SELECT_time = millis();
while (digitalRead(SELECT_PIN) == LOW) {};
if (millis() - SELECT_time < 1000) {
dicenumber = (dicenumber % 2) + 1;
if (BUZZ) {
tone(SOUND_PIN, 500, 80);
delay(200);
}
} else {
tone(SOUND_PIN, 500, 80);
BUZZ = ! BUZZ;
}
}
/////////////check rollbutton//////////////////
if (digitalRead(BUTTON_PIN) == LOW) {
rollMode = 0;
do {
randomGenerator();
Roll();
}
while (digitalRead(BUTTON_PIN) == LOW);
slow();
time = millis();
rollMode = 2;
}
///////////////////////////////////////////////
Roll(); // Show Result
Check_On_Time();
}
//////////////Check On Time and save data//////////////////
void Check_On_Time() {
if (millis() - time > warningTime) {
CleanScreen();
Roll();
}
if (millis() - time > warningTime + 5000) {
EEPROM.write(startadress + 1, dicenr1);
EEPROM.write(startadress + 2, dicenr2);
EEPROM.write(startadress + 3, dicenumber);
EEPROM.write(startadress + 4, BUZZ);
delay(50);
digitalWrite(SHUTOFFPIN, LOW);
}
}
///////////////////////////////////////////////////////////////
///////////////////Roll dice draw and display///////////////////
void Roll() {
String number[25] = {"One", "Two", "Three", "Four", "Five", "Six"};
int x;
int x1;
const int y = 2;
oled.setFont(u8g_font_helvB10);
oled.firstPage();
do {
if (rollMode == 1) {
oled.drawStr(36, 64, "Last Roll");
} else if (rollMode == 0) {
oled.drawStr(36, 64, "Roll Dice");
}
switch (dicenumber) {
case (1): //Two dice
x = 76;
oled.drawFrame(2 + x, y, 48, 48);
if (dicenr1 == 1) {
oled.drawDisc(26 + x, 24 + y, 4); //Center
x1 = 13;
} else if (dicenr1 == 2) {
oled.drawDisc(12 + x, 10 + y, 4); //upper L
oled.drawDisc(40 + x, 38 + y, 4); //lower R
x1 = 14;
} else if (dicenr1 == 3) {
oled.drawDisc(26 + x, 24 + y, 4); //Center
oled.drawDisc(12 + x, 10 + y, 4); //upper L
oled.drawDisc(40 + x, 38 + y, 4); //lower R
x1 = 7;
} else if (dicenr1 == 4) {
oled.drawDisc(12 + x, 10 + y, 4); //upper L
oled.drawDisc(40 + x, 10 + y, 4); //upper R
oled.drawDisc(12 + x, 38 + y, 4); //lower L
oled.drawDisc(40 + x, 38 + y, 4); //lower R
x1 = 11;
} else if (dicenr1 == 5) {
oled.drawDisc(12 + x, 10 + y, 4); //upper L
oled.drawDisc(40 + x, 10 + y, 4); //upper R
oled.drawDisc(12 + x, 38 + y, 4); //lower L
oled.drawDisc(40 + x, 38 + y, 4); //lower R
oled.drawDisc(26 + x, 24 + y, 4); //Center
x1 = 13;
} else if (dicenr1 == 6) {
oled.drawDisc(12 + x, 10 + y, 4); //upper L
oled.drawDisc(40 + x, 10 + y, 4); //upper R
oled.drawDisc(12 + x, 38 + y, 4); //lower L
oled.drawDisc(40 + x, 38 + y, 4); //lower R
oled.drawDisc(12 + x, 24 + y, 4); //center L
oled.drawDisc(40 + x, 24 + y, 4); //center R
x1 = 16;
}
if (rollMode == 2) {
oled.setCursor(x1 + x, 62 + y);
oled.print(number[dicenr1 - 1]);
}
case (2)://one Dice
if (dicenumber == 2) {
x = 40;
} else {
x = 5;
}
oled.drawFrame(2 + x, y, 48, 48);
if (dicenr2 == 1) {
oled.drawDisc(26 + x, 24 + y, 4); //Center
x1 = 13;
} else if (dicenr2 == 2) {
oled.drawDisc(12 + x, 10 + y, 4); //upper L
oled.drawDisc(40 + x, 38 + y, 4); //lower R
x1 = 14;
} else if (dicenr2 == 3) {
oled.drawDisc(26 + x, 24 + y, 4); //Center
oled.drawDisc(12 + x, 10 + y, 4); //upper L
oled.drawDisc(40 + x, 38 + y, 4); //lower R
x1 = 7;
} else if (dicenr2 == 4) {
oled.drawDisc(12 + x, 10 + y, 4); //upper L
oled.drawDisc(40 + x, 10 + y, 4); //upper R
oled.drawDisc(12 + x, 38 + y, 4); //lower L
oled.drawDisc(40 + x, 38 + y, 4); //lower R
x1 = 11;
} else if (dicenr2 == 5) {
oled.drawDisc(12 + x, 10 + y, 4); //upper L
oled.drawDisc(40 + x, 10 + y, 4); //upper R
oled.drawDisc(12 + x, 38 + y, 4); //lower L
oled.drawDisc(40 + x, 38 + y, 4); //lower R
oled.drawDisc(26 + x, 24 + y, 4); //Center
x1 = 13;
} else if (dicenr2 == 6) {
oled.drawDisc(12 + x, 10 + y, 4); //upper L
oled.drawDisc(40 + x, 10 + y, 4); //upper R
oled.drawDisc(12 + x, 38 + y, 4); //lower L
oled.drawDisc(40 + x, 38 + y, 4); //lower R
oled.drawDisc(12 + x, 24 + y, 4); //center L
oled.drawDisc(40 + x, 24 + y, 4); //center R
x1 = 16;
}
if (rollMode == 2) {
oled.setCursor(x1 + x, 62 + y);
oled.print(number[dicenr2 - 1]);
}
break;
}
} while (oled.nextPage());
delay(100);
}
////////////////////////////////////////////////////////////////////////////
//////////////////////Slow down rolling dice///////////////////////////////
void slow() {
int d = 0;
for (int i = 0; i < (random(7, 30)); i++) {
randomGenerator();
Roll();
delay(d);
d = d + 50;
}
if (BUZZ) {
tone(SOUND_PIN, 800, 500);
}
}
////////////////////////////////////////////////////////////////////////
//////////////////////////Create Random Numbers////////////////////////
void randomGenerator () {
dicenr1 = random(1, 7);
dicenr2 = random(1, 7);
if (BUZZ) {
tone(SOUND_PIN, 700, 80);
}
}
//////////////////////////////////////////////////////////////////////
/////////////////////////Clear Display////////////////////////////////
void CleanScreen() {
if (BUZZ) {
tone(SOUND_PIN, 1000, 20);
}
oled.firstPage();
do {
} while (oled.nextPage());
delay(10);
}
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