User Manual

ManualsBrandsWayinTop ManualsComputers & AccessoriesReal Time Clock Kit with Tutorial for Arduino, Clock Module + Micro SD Card Driver + Nano V3.0 Development Board + OLED 128X64 Display + Buzzer + Breadboard Jumper Wires

Table Of Contents

Parts Required

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Preface

About Our Company

WayinTop, Your Top Way to Inspiration, is a professional manufacturer over 2,000 open source

motherboards, modules, and components. From designing PCBs, printing, soldering, testing,

debugging, and offering online tutorials, WayinTop has been committed to explore and demystify

the wonderful world of embedded electronics, including but not limited to Arduino and

Raspberry Pi. We aim to make the best designed products for makers of all ages and skill levels.

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Summary of content (16 pages)

PAGE 1
Preface About Our Company WayinTop, Your Top Way to Inspiration, is a professional manufacturer over 2,000 open source motherboards, modules, and components. From designing PCBs, printing, soldering, testing, debugging, and offering online tutorials, WayinTop has been committed to explore and demystify the wonderful world of embedded electronics, including but not limited to Arduino and Raspberry Pi. We aim to make the best designed products for makers of all ages and skill levels.
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Real Time Clock Kit with Arduino_DS3231RTC_SSD1306 OLED Overview This tutorial shows how to build a real time clock and timing alarm clock using Arduino DS3231RTC and SSD1306 OLED. The DS3231RTC is used as a real time clock chip which keeps the time running even if the main power supply is off (with the help of a battery), time, date and temperature of nano board are displayed on the SSD1306 OLED.
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Tactile Push Button Switch x 2 Dupont Wires x N Connection Diagram -3-
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Arduino Control Program Before using the control program, you need to load the Adafruit_GFX.h and Adafruit_SSD1306 library functions required by the system. Step 1: Open the arduino IDE, select "Sketch"-> "Include Library"-> "Manage Libraries ...." as shown below. Step 2: Enter "Adafruit_GFX" in the pop-up window to search for library functions, and then install the Adafruit GFX Library functions, as shown below, which has installed the library functions.
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Step 3: After installating the Adafruit GFX Library library function, enter "Adafruit_SSD1306" in the input text box to search for the SSD1306 library function, and then install Adafruit SSD1306, as shown in the figure below. Step 4: After the installation is completed, close arduinoIDE, and then find the "Adafruit_SSD1306.
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file that was just loaded (the path of this file is different, it will usually be under the "libraries" file in the arduino installation directory, or in arduino The "libraries" file under the code file storage path. Mine is under the "C: \ Users \ Admin \ Documents \ Arduino \ libraries \ Adafruit_SSD1306" path), as shown below. Step 5: Open the file in Notepad and find the location shown below. Step 6: Uncomment "#define SSD1306_128_64", and then comment "#define SSD1306_128_32". as the picture shows.
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Step 7: Open arduinoIDE and select "File"-> "New" and create a new project file, as shown in the figure below. Step 8: Copy the following program into the newly created project. #include #include #include
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#include #define SCREEN_WIDTH 16 // OLED display width, in pixels #define SCREEN_HEIGHT 16 // OLED display height, in pixels #define OLED_RESET 4 Adafruit_SSD1306 display(OLED_RESET); #define button1 9 // Button B1 is connected to Arduino pin 9 #define button2 8 // Button B2 is connected to Arduino pin 8 #define buzzer 3 void setup(void) { pinMode(button1, INPUT_PULLUP); pinMode(button2, INPUT_PULLUP); pinMode(buzzer, OUTPUT); digitalWrite(buzzer, HIGH); delay(1000); Serial.
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case 2: draw_text(0, 0, " MONDAY ", 1); break; case 3: draw_text(0, 0, " TUESDAY ", 1); break; case 4: draw_text(0, 0, "WEDNESDAY", 1); break; case 5: draw_text(0, 0, "THURSDAY ", 1); break; case 6: draw_text(0, 0, " FRIDAY ", 1); break; default: draw_text(0, 0, "SATURDAY ", 1); } } void DS3231_display(){ // Convert BCD to decimal second = (second >> 4) * 10 + (second & 0x0F); minute = (minute >> 4) * 10 + (minute & 0x0F); hour = (hour >> 4) * 10 + (hour & 0x0F); date = (date >> 4) * 10 + (date & 0x0F)
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else temperature[4] = '5'; } if(temperature_lsb == 1 || temperature_lsb == 3){ temperature[5] = '5'; if(temperature_lsb == 1) temperature[4] = '2'; else temperature[4] = '7'; } draw_text(60, 0, Calendar, 1); // Display the date (format: dd/mm/yyyy) draw_text(10, 24, Time, 2); // Display the time draw_text(75, 55, temperature, 1); // Display the temperature if(Time[0]=='2' && Time[1]=='0' && Time[3]== '3' && Time[4]=='0') { digitalWrite(buzzer, LOW); } else { digitalWrite(buzzer, HIGH); } } void b
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parameter = 0; if(i == 4 && parameter > 59) // If minutes > 59 ==> minutes = 0 parameter = 0; sprintf(text,"%02u", parameter); draw_text(x_pos, y_pos, text, 1); delay(200); // Wait 200ms } draw_text(x_pos, y_pos, " ", 1); blink_parameter(); draw_text(x_pos, y_pos, text, 1); blink_parameter(); if(!digitalRead(button1)){ // If button B1 is pressed i++; // Increament 'i' for the next parameter return parameter; // Return parameter value and exit } } } void draw_text(byte x_pos, byte y_pos, char *te
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} //set position of text when editing on button press date = edit(60, 0, date); // Edit date month = edit(80, 0, month); year = edit(110,0, year); hour = edit(14, 9, hour); // Edit month // Edit year // Edit hours minute = edit(50, 9, minute); // Edit minutes // Convert decimal to BCD minute = ((minute / 10) << 4) + (minute % 10); hour = ((hour / 10) << 4) + (hour % 10); date = ((date / 10) << 4) + (date % 10); month = ((month / 10) year = ((year / 10) << 4) + (month % 10); << 4) + (year % 1
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Wire.write(0x11); // Send register address Wire.endTransmission(false); // I2C restart Wire.requestFrom(0x68, 2); // Request 2 bytes from DS3231 and release I2C //bus at end of reading temperature_msb = Wire.read(); temperature_lsb = Wire.
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Step 10: After the setting is completed, select the first button to compile the program. If there are no errors, select the second button to upload the program to the arduino nano board. As shown below. Step 11: The alarm clock of this tutorial is set at "20:30". If you need to change it, please modify the code shown in the figure below. Step 12: The final Experiment map is shown below.
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to select the next data. After selecting the data to be set, press the key connected to the D8 pin of the Arduino nano board to change the data.
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