Introduction: Arduino Ultrasonic Sensor Door Alarm
This is a very simple ultrasonic sensor door alarm for beginners.
this needs just a few stuff you need to gather from any online shoppers you need.
I bought it from Amazon and I recommend to buy in amazon
One ultrasonic sensor
One Simple buzzer
One Arduino Uno generic board
One a to b usb cable
Some jumper wires
One generic breadboard
Softwares are:::-ARDUINO IDE
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Step 1: The Connections Are :::- 😄😄😄
Trig- Arduino pin 2
Echo- Arduino pin 3
Buzzer connections ::-
Plus to 5v
Minus to Arduino pin 12
Step 2: Just Programming Slightly 😎😎🤗
Step 3: How It Works
It is just a simple mechanism.
Just if an object comes to a distance the buzzer buzzes.
Just play with it😎😎🤗🤗🤗🙂🙂🤔🤔