Project Saturn

GPS based 7-segment display clock.

Contents

• Introduction
• Hardware
• Schematic
• Software
• Assembly

Introduction

This project is a GPS based 7-segment display clock. The clock is driven by a GPS module which provides the time and date information. The GPS module is connected to a microcontroller which processes the data and drives the 7-segment display. The display is made up of 8 7-segment displays. The MAX7219 LED driver is controlled by the microcontroller.

Hardware

The hardware components used in this project are:

• ESP32 SuperMini Datasheet
• MAX7219 LED Driver Datasheet
• 2x Common Cathode 4x 7-segments display Datasheet
• Ublox NEO-6M GPS Module Datasheet
• 2x Push Buttons

Schematic

The schematic for the project is shown below:

Software

For ease of development, an Arduino library has been created to interact with the MAX7219 LED driver. The following commands are supported:

TODO

Assembly

TODO