Arduino + LDR + 9 LED's

I hooked up my Arduino microcontroller to a light dependent resistor I found in a motion activated Halloween toy and output its analog signal to some LED's for a visual effect.

I used the Arduino Programming Language, which is essentially a C/C++ variant. The microcontroller and the language is all open source and runs under Ubuntu and Windows just fine.

The microcontroller is around $40-50 and you can get lots of electronics from old toys or just about anywhere for free.

Its cheap, easy and fun!

Category:

Science & Technology

Tags:

• arduino
• ldr
• led
• microcontroller
• linux
• cheap
• easy
• fun

[Malik0505]

Basically just details on how u did that...

[Shawnbjj]

@Malik0505 I read the analog values of the LDR and using a bunch of if / else statements I turned on / off the LED's if it was within a certain value.

ie. if LDR < 100 turn on LED 1 and turn off LED 2-10.

Hope this helps

[Malik0505]

Can you post the code for that? And the schematics? I'd love to play around with it

[man13preet]

Good work....how much did arduino set cost...?

is it available in electric store?