Arduino clock without RTC

• Description
  • Features
• Folders
• Components
• Schemes

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Description

Simple Arduino clock project without Real Time Clock

Features

• Big font for display
• Adaptive backlight
• Alarm
• Hour signal
• Display output:
  • Big Clock
  • Big Date
  • Alarm time

Code settings

#define HOUR_SIGNAL 1 // (0 - off, 1 - on)
#define SMART_BACKLIGHT 1 // (0 - off, 1 - on)
#define TIME_SEPARATOR 0 //  time separator type (0 - none, 1 - dot, 2 - colon)
#define GET_TIME 1 // get the time of firmware download from pc (0 - off, 1 - on)

Folders

firmware - folder with firmware for Arduino
schemes - component wiring circuitry

Components

• Arduino NANO
• LCD screen 1602 i2c
• Buzzer
• 3 Buttons
• Photoresistor
• Resistor (10 kΩ)

Schemes