DIY Dark Sensor

Hello guyz

Here is another instructable of making a cheap dark sensor from scratch!

Its Cheap and works fine.

No requirement of arduino or Ic's.

So, For making this basic sensor , you will be required some basic items which can be easily purchased from a local electronics shop for some bucks.

Here are the parts which are required :-

1. 1 X BC547 ( Very Common Transistor)

2. 1 X 5mm LED

3. 1 X 220k Ohm Resistor

4. 1 X 330 Ohm Resistor

5. 1 X LDR (Light Dependent Resistor)

6. Soldering Items and a perfboard

7. Couple of wires

Just follow the circuit diagram and you will get your Dark Sensor ready at no time!