GitHub

Arduino Alarm Clock with DS1307 RTC and Buzzer

This project implements a simple alarm clock using an Arduino, a DS1307 real-time clock (RTC), and a buzzer. The current time is displayed on a 16x2 LCD screen, and an alarm is set to activate the ...
EDN

Arduino Uno Clock and Temperature Monitor with LCD

The past month or so I’ve been playing with the Maxim DS1307 Real-Time-Clock and DS1621 Temperature Sensor ICs. I hooked them up to an Arduino Uno board with a Parallax Serial 16×2 Character LCD. I ...
Hackaday

Big Time Character LCD Clock

While the SSD1306 OLED has somewhat become the go-to display for up-to-date projects, the good old character displays with their Hitachi HD44780 controller don’t seem to be disappearing just yet ...
GitHub

GitHub - Arpan1906/Arduino-Based-Digital-Clock-Without-RTC-: The following project demonstrates "A Real-Time Digital Clock" built using Arduino Uno R3, a 16x2 LCD display, and ...

The following project demonstrates "A Real-Time Digital Clock" built using Arduino Uno R3, a 16x2 LCD display, and push buttons—no RTC module required. The project uses Arduino’s internal timing and ...