Introduction: Arduino Tutorial - Laser Security System
In this tutorial, I show you, How To make a Simple laser Security System with Arduino.
Step 1: You Will Need:
- LED
- Laser
- Photoresistor
- Piezo Buzzer
- Breadboards
- Arduino uno
- Resistor 10Ω Resistor
- 220Ω Resistor for led.
- jumper wire
Software
- Arduino IDE
Step 2: Watch the Video Tutorial
Step 3: Schematics
Breadboard:-----------Arduino Pins:---------Breadboard
Buzzer--------------------Pin9------------------------Gnd
Laser-----------------------5v--------------------------Gnd
Resistor------------------A0---------------------------Gnd,Photocell
Photocell-------------------5v-------------------------Resistor
Led----------------------Pin6,Pin7
Note:I've used 220 Ohm resistors in the past for all of my LEDs.
Step 4: Arduino Sketch
int sensorPin=A0;
int sensorValue=0; int piezoPin=9;
void setup(){ pinMode(sensorPin,INPUT); pinMode(7,OUTPUT); pinMode(6,OUTPUT); pinMode(piezoPin,OUTPUT); digitalWrite(7,HIGH); digitalWrite(6,LOW); }
void loop(){ sensorValue=analogRead(sensorPin); if(sensorValue<=1000) {digitalWrite(piezoPin,HIGH); {tone(9,3047,400); noTone(8); } digitalWrite(7,HIGH); } else {digitalWrite(piezoPin,LOW); digitalWrite(7,LOW); } sensorValue=1000; }
1 Person Made This Project!
- ShivaT14 made it!
11 Discussions
Question 1 year ago on Step 1
Hi,
may I ask you which piezo buzzer you used and which light sensor and which laser?
Maybe you have links (ebay / amazon etc.) for me?
I would love to build this project - but I am a little overwhelmed because there are so many different buzzers etc. and I don‘t which one is right....
You would really help me a lot :-)
This will be my first Arduino project by the way :-)
Best regards
Aurel
1 year ago on Introduction
Comment je peux faire un code pour activer et désactivé le fonctionnement de la diode laser comme un programme merci beaucoup svp c urgent
Question 2 years ago on Introduction
How watts should the laser be
Question 2 years ago
what is the part number for the 5v Laser unit...can anyone please mention that...
2 years ago
if i want to control mobile calling systems... when what procedure....
3 years ago
is it possible to make this led fading?
Reply 2 years ago
you can use LEDs or infrared LEDs, but the LEDs have some problems with strong light, ( Sun light)
3 years ago
if ever i am using a 220v buzzer and Ldr and a led i want to make an laser security system but i dont know can you please help me
Reply 3 years ago
use relay module
4 years ago
Can I use a Photodiode instead of an LDR?
Reply 4 years ago
Set the sensor value to 30 at both lines when I used a normal LDR (mostly in kits or as board)