Make your own GPS Analogue Clock

The Make your own GPS Analogue Clock project combines precise satellite timing with local environmental sensing to create a functional desktop display. At the heart of the system is an Arduino Uno, which coordinates data collection and visual output. The U-Blox NEO-6M GPS receiver continuously communicates with global navigation satellites to acquire Coordinated Universal Time (UTC) and positional data. The Arduino parses this incoming serial data to extract the exact time, which is then translated into mathematical coordinates for the hour, minute, and second hands of an analogue clock face. Simultaneously, an LM35 or TMP36 temperature sensor measures the ambient room temperature by outputting a proportional analog voltage that the Arduino reads through its analog-to-digital converter. To ensure reliable power distribution, especially given that the 3.5-inch TFT shield operates primarily on 3.3V, an LD1117V33 voltage regulator steps down the supply voltage to prevent overheating. The compiled graphical interface—featuring the analogue clock, digital date, and temperature reading—is rendered onto the 3.5-inch TFT screen using the Adafruit_GFX graphics library and the mcufriend_kbd.h header file, completing a self-contained timing and monitoring station.