SMART ALARM CLOCK

Abstract

IOT is an emerging and evergreen technology that has created a worldwide networked machines and also the devices that can be helped for exchanging of communication. As the real time applications have been increasing every day the need of smart connections has also increased. Challenging the smart connectivity IOT based smart alarms clocks have been designed in this project. Since decades alarm clocks have been in use but as the technology has increased mobile phones came into existence and people find it easy to set alarms on mobile. In electronics hobbyists alarm projects have always been in great demand. IOT alarm clock is built using NODEMCU where alarm time can be set using a web page without having an internet connection.

Existing System

Proposed System

A captive portal is a web page that is displayed to newly connected users of a Wi-Fi network. We can create a captive portal using NodeMCU. NodeMCU has an inbuilt ESP8266 Wi-Fi shield and this Wi-Fi shield can be used as a Wi-Fi access point (AP), and provide free WiFi network but it doesn’t have internet access. So when you connect to this WiFI it will redirect you to your alarm web page. In this NodeMCU based Smart Alarm Clock, four major components are used- DS3231 RTC Module, NodeMCU ESP8266, 16x2 LCD Module and an LCD I2C Module. Here NodeMCU is used for reading time from DS3231 RTC and display it on 16x2 LCD Display. A buzzer is used for alarm indication, which beeps when alarm is activated.

Architecture

BLOCK DIAGRAM