Darkness Sensor With LDR

by bastelking in Circuits > Sensors

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Darkness Sensor With LDR

Dunkel Sensor Schaltung mit LDR Widerstandschaltung ohne Widerstand
Dunkelheitssensor automatisches nachtlicht.png

Here you can learn how to make a Darkness Sensor with just few cheap parts.

It´s really simple and easily made by yourself.

List of Materials and Schematics

Dunkelheitssensor automatisches nachtlicht.png

What you´ll need:

Powersource

Jumperwire

1 or more LDR

LED

Potentiometer

Plug everything together like shown on schematics and test it.

... Make It More Accurate

Dunkelheitssensor automatisches nachtlicht genau.png

You can make the Sensor more accurate by adding LDR.

By adding the LDRs you make the potential resist bigger so the LED dimms

over a more wide range.