Project showcase
Arduino DIY Alarm

Arduino DIY Alarm © GPL3+

DIY an alarm using Arduino UNO R3 board.

  • 3,526 views
  • 3 comments
  • 5 respects

Components and supplies

A000066 iso both
Arduino UNO & Genuino UNO
×1
Arduino sensor shield V4.0 for UNO R3
https://www.pjrc.com/teensy/td_libs_Time.html
×1
LCD 20x4 I2C module
×1
IR remote for Arduino
×2
Adafruit industries ada1536 image
Buzzer
×1
11026 02
Jumper wires (generic)
×1

Necessary tools and machines

09507 01
Soldering iron (generic)

About this project

Are you interested in make an alarmyourself? It can help you get up early in the morning. This project give aguidance for building an alarm.

Arduino UNO board includes timersand EEPROM. The library of "Time.h" and "EEPROM.h"are easy to be used. I do not add any external timer, so I have to setup timewhen I reset my Arduino board. Thanks the EEPROM on the board, I do not need tosetup time all the time. However, if the Arduino is out of power, the EEPROMcan only store the time of last power on. I need the alarm can be setup, sothat it can turn on buzzer at the alarm time.

I use IR remote to setup time. Thealarm includes three states: normal timer, setup timer and setup alarm. Thelibrary is "IRremote.h". Here is a good tutor for using IR remote.

LCD is 20x4. Arduino have easylibrary for the LCD to use. I use "LCD.h" and"LiquidCrystal_I2C.h". I follow the Arduino info to learn. I leave the five leftcolumn to display some else. I will upload another project to show.

Code

Arduino DIY alarm
You can use it as your alarm.

Schematics

LCD and IR receiver
LCD I2C connection
IR receiver VCC to Arduino VCC
IR receiver GND to Arduino GND
IR reciever S to Arduino digital pin 9
Lcd irremote eq8p36wjqt
Buzzer
Buzzer VCC to Arduino VCC
Buzzer GND to Arduino GND
Buzzer S to Arduino digital pin 5
Buzzer malkukahni

Comments

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