Automatic Street Light Control Using Arduino Circuit Diagram
Here based on our room condition the threshold value we took is 100 for the ldr sensor.
Automatic street light control using arduino circuit diagram. In this circuit we are making a light sensor using ldr with arduino to control a bulb cfl as per light condition of the room or outside area. Automatic street light control circuit diagram in this article i am going to post a very simple circuit diagram of automatic street light control using transistor and light dependent resistors. So it can control 230v ac lights or similar externally powered lights with the same circuit. Relay module 5v.
For relay interface refer the circuit diagram of the automatic power cut off circuit. Ldr light dependent resistor resistor 100k 1 330ohm 1 led 1. The relay can be connected similarly as shown in that circuit. This circuit is very simple circuit and can be built with transistors and ldr you don t need any op amp or 555 ic to trigger the ac load.
To operate an external lamp with the same circuit interface a relay with the output pin3 of the 555 ic. When we place a hand on ldr not allowing any light on ldr arduino automatically turns on the led. Here we have used an ac bulb as street light. This is a very simple circuit of automatic street light control.
Automatic street light control system sensor using ldr transistor bc 547 very simple. Auto intensity control of street light using arduino pcb design. Circuit diagram of automatic room lights using arduino. So here in this project we are going to make a simple automatic street light controller using relay and ldr.
If you do not have a relay module you can make one yourself using very simple hardware. The following image shows the circuit diagram of the project implemented using arduino uno pir sensor and a relay module.