Smart_Watch Simple Arduino Project. This is a simple Arduino project that I built and tested on a breadboard. Electronic Components : Arduino Uno SSD1306 (Monochrome 128x64 OLED display with I2C) interface DS1307 (RTC (Real Time Clock) module with I2C interface) DHT11 OR 22 (Digital Humidity and Temperature sensor) Buzzer LED Push Button 5X 10K Resistor (Pull down) You can see the full schematic here on the Wokwi simulator and actually run the program and interact with the button. Click here Main_Menu_Pic Circut_Pic