So in this blog post we will focus on making an automatic street light project using IR sensor.
Introduction of Automatic street light project using IR sensor
Automatic street light using Light sensor (LDR): You can make a smart street light that goes on and off based on the availability of light in the environment. It will turn on in case of darkness and will go off in daylight.
Automatic street light using IR sensor: We can make two features of automatic street light using IR sensor.
1. A street light that goes on and off based on object movement. The object can be a vehicle, a human, or an animal.
2. The street light that goes on and off based on the sunlight. In presence of adequate sunlight, the street light will remain off, and in absence, will turn on.
We will discuss making both of these features here. But the problem is, both of them can’t work together in a single circuit.
Once we have all of these, we can start making the circuit first.
Step 1 Make following circuit
Power + IR + LED
Adjust the potentiometer of the IR element in the middle so that the sensor can detect the adequate light.
Bring an object near to the IR LED and test your circuit. LEDs should glow up in the dark and will go off in the presence of light.
So you have successfully made the electronics and sensor part of your smart street light project.
Make a platform of height 3 cms using the project paper. Choose length and width according to your project plan. Color it to make it look beautiful. You can draw roads, greens etc. of your own imaginations.
Make two a hole in the box, one to pass the cable and another to hold the IR led at the surface.
Your IR sensor based smart streetlight project is ready. The streetlight should turn on as a toy vehicle passes on the Sensor LEDs and will turn off when gone.
The IR sensor will detect a vehicle, or human or animal, passing on the road as object. As the IR detects an object, it will send the signal to the LED element and light will turn on. The LED will turn off after the object goes off.
Also sunlight has IR rays, so in presence of the sunlight the LEDs will turn on. If we want to do the reverse, should add Flip Element between IR and LED element. Change the circuit as shown below: