Saturday, August 11, 2007

Tech's LDR

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Led Matrix of my tag name. Its a basic LDR circuit.

Lesson 1
What is LDR?
LDR stands for Light Detection Resistor. Its a basic on/off switch or simple to say its switches independently by light source surrounding it.

For this i've made it, when theres sufficient light around it will switch 'off' the LED; in other words when in the day. When its dark or at night , it will then switch 'ON' the LED and u got a light on. Save power and energy. Duration it can live up to 2 weeks 'on and ' off'.

Graffiti on the other side, active in the night for street bombing and lots more...