Make AC 230 V dark light sensor & live test auto ON OFF dark sensor
To day i will show you how to make 230 volt ac dark sensor automatic ON and OFF 230 volt bulb and live test, using LDR and BT136 simple and easy light sensor electronics projects make at home diy ideas.
Here is my new simple Electronics project about Automatic Street Light Control System or Dark Sensor.
It is a simple and powerful concept, which uses transistor (BC 547 NPN) as a switch to switch ON and OFF the street light system automatically.
It automatically switches ON lights when the sunlight goes below the visible area of our eyes. (e.g. in the evening after sunset).
It automatically switches OFF lights when Sunlight falls on it (e.g. in morning), by using a sensor called LDR (Light Dependent Resistor) which senses the light just like our eyes.
Needs no manual operation for switching ON and OFF...
solder the transistor on the board and solder one wire of the LDR to the emitter and the other to the base, solder the negative wire of the LED to the base of the transistor with a 330 ohms resistor and also solder 220k resistor with the one side of the 330 ohms resistor.
The simple circuit is ready for testing now. Connect 9v battery terminals to the circuit as shown in fig and see the output. As you block light falling on Light dependent resistor (LDR), the LED glows.
Make AC 230 V dark light sensor & live test auto ON OFF dark sensor
To day i will show you how to make 230 volt ac dark sensor automatic ON and OFF 230 volt bulb and live test, using LDR and BT136 simple and easy light sensor electronics projects make at home diy ideas.
Here is my new simple Electronics project about Automatic Street Light Control System or Dark Sensor.
It is a simple and powerful concept, which uses transistor (BC 547 NPN) as a switch to switch ON and OFF the street light system automatically.
It automatically switches ON lights when the sunlight goes below the visible area of our eyes. (e.g. in the evening after sunset).
It automatically switches OFF lights when Sunlight falls on it (e.g. in morning), by using a sensor called LDR (Light Dependent Resistor) which senses the light just like our eyes.
Needs no manual operation for switching ON and OFF...
solder the transistor on the board and solder one wire of the LDR to the emitter and the other to the base, solder the negative wire of the LED to the base of the transistor with a 330 ohms resistor and also solder 220k resistor with the one side of the 330 ohms resistor.
The simple circuit is ready for testing now. Connect 9v battery terminals to the circuit as shown in fig and see the output. As you block light falling on Light dependent resistor (LDR), the LED glows.
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