Build a Classic Analog Clock Face on OLED with Arduino Uno + LED — Real-Time Clock Project Kit

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Watch the hands sweep across a crisp OLED screen as you build your own classic analog clock face. The DS3231 precision real-time clock module feeds your Arduino Uno exact time data, and your code moves hour, minute, and second hands in real-time, creating a reliable desk clock that never needs resetting. This project brings together timekeeping hardware, graphic display logic, and clean breadboard wiring into one satisfying build.

What You'll Build

You will assemble a breadboard circuit that reads the time from the DS3231 RTC and renders a circular clock face with sweeping hands on a 0.96-inch OLED display. The screen updates every second, showing a second hand that rotates smoothly while the hour and minute hands track position precisely. The finished clock is a portable timepiece that runs on a 9V battery and looks great on any desk.

What You'll Learn

• How to interface a DS3231 RTC with Arduino over I2C and read accurate date and time
• Using the U8g2 library to draw shapes, lines, and text on a 0.96-inch OLED
• Converting RTC time data into angular coordinates for analogue clock hands
• Wiring a stable breadboard circuit with decoupling capacitors and pull-up resistors

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately