Supreme Automatic Light Sensor Circuit Diagram
The main part of the circuit is a nc normally closed reed switch.
Automatic light sensor circuit diagram. When any person animal or any object comes in the range of the sensor. Ldr is a light dependent resistor which resistance increases as darkness and its resistance is decreases when light falling on it. Ldr is a photoresistor that is used for the detection of light.
Dark sensor circuit dark light activated circuit using ldr the dark sensor circuit is very useful to automatic switch on and off any appliance by detection of light and dark. Automatic wash room light controller using pir motion sensor and motion sensor alarm circuit using pir sensor. Then automatic light switched on.
By this light activated switch in day light will automatically switched off and at night switch on light. A 230v ac supply is provided to the load in this case the load is represented with a lamp. 5 leds in one row and as this here total 5 series arrangement are connected and in one series only 5 led connected.
The circuit will also require a small size of permanent magnet to be fitted on the corner of the door in front of the reed switch that will be placed at the boarder of the door. You can use this for automatic light switch for street light. Automatic door sensor light circuit diagram other magnetic sensing related purposes.
When light intensity high on ldr the resistance through it decrease and when light intensity is low. Automatic street light circuit diagram in this circuit 25 high bright white led used each row of series connection there are 5 leds in. Automatic light operated controlled switch circuit using ldr is very interesting circuit idea.