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Motion Sensor and LED's - How to Make Circuit

Hi,

Im having some difficulty trying to make a circuit. I want to create a desk lamp which only switches on/off when you wave your hand across the sensor.

I will be using

4x AAA batteries 1.5v Each 1150mAh 8 LED 3.6 Forward Volts - 20mAh 120 ohm Resistors

Not sure about the sensor and other components..

Please can someone help me specify the materials and circuit layout.

Thanks

Reply to
Sizz
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Maybe try an infrared phototransistor and infrared LED cct for motion detection. D from BC

Reply to
D from BC

I have seen some clever circuits (probably in EDN design ideas) that used the LED's as a photodiode as well

Wim

Reply to
Wim Ton

I would suggest AA cells over AAA cells.

Reply to
miso

cct?

Reply to
miso

Circuit.

Cheers! Rich

Reply to
Rich Grise

Sure, for US$60.00/hr.

Good Luck! Rich

Reply to
Rich Grise

I thought that for a second, but ckt is more common, though probably less correct.

Reply to
miso

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