Digital clock code for Arduino Nano and Nano 33 IoT, to drive nixie or LED matrix displays

Alarm clock (v3)

A light 'alarm' clock designed for gentle wake-up with increasing light intensity.

Arduino Real Time Alarm Clock DS3231 with TM1638. Arduino Clock with Battery backup (real time clock), Time, Date, Alarm, Temperature, TM1638 seven segment module output and input, Display Sleep mode.

Alarm Clock library using the Real Time Clock in a common ZS-042 module, aka. DS3231 RTC, AT24C32N, CR3032 battery.

QT/QML internet radio, podcast player and alarmclock

Arduino Real Time Clock with Alarm and environmental sensors

An easy-to-use firmware for the Waveshare Pico-Clock-Green, written in C++

An arduino music player + clock + alarm clock

This is a an alarm clock made from an Arduino Nano, DS3231, TM1637, some buttons, an LED and a buzzer.

The Network Time Protocol (NTP) is a networking protocol for clock synchronization between computer systems over packet-switched, variable-latency data networks. In operation since before 1985, NTP is one of the oldest Internet protocols in current use. NTP was designed by David L. Mills of the University of Delaware.

Arduino Real Time Alarm Clock with Temperature and LED lights. Remote controlled

⏰ Wi-Fi connected alarm clock using ESP-32

A unique and effective alarm clock built on the Arduino platform.

This is an Alarm Clock (Radio) based on the ESP8266 in combination with a MAX7219 LED-Matrix, Relay-Board and DS3231 RTC.

Alarm clock with webinterface based on ESP8266

All In One Clock

Child alarm clock: red light during sleep time, blue light otherwise.

An alarm clock designed to wake you up naturally, with light.

An Alarm Clock with a complete deactivation sequence based on probably too many movies