LDR Project

The aim of this project was to create a circuit with an LDR and a Par Darlingtong that changes the active component between night and day.
My friend and me decided to make a heliport which, during the night turns the lights on and during the day turns the lights off.
I think the project was good, simple but well done. The teacher decided to give us a 10.
There you have a photo, a video of the project and the summary: 

-SUMMARY-(LDR PROJECT)-

-Objective:

The objective is to make a circuit using an LDR and a relay, by which a motor, led… etc. that works during day and does not during night.

-How does it work?

The LDR allows electricity to pass when there is light; it activates the “Par Darlington” and excites the relay so that the LEDs get off.

-Materials:

We have used LEDs, an LDR, a relay, a 5v power supply, a 10K potentiometer, two transistors, a resistance, wires, a tupper and wood.

-Building process:

1^st we made the circuit on a plate of wood and checked it.

2^nd we painted the tupper and the “H” on the wood.

3^rd we have built the project assembling the parts.

-Conclusion:

We have enjoyed this project because is the first time we make a project using an LDR and transistors and a relay and we have liked it because it is like an “automatic” project.

-Circuit: