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Motion Sensor and LED's - How to Make Circuit

S

Sizz

Jan 1, 1970
0
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
 
D

D from BC

Jan 1, 1970
0
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

Maybe try an infrared phototransistor and infrared LED cct for motion
detection.
D from BC
 
W

Wim Ton

Jan 1, 1970
0
Sizz said:
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..

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

Wim
 
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

I would suggest AA cells over AAA cells.
 
R

Rich Grise

Jan 1, 1970
0
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.

Sure, for US$60.00/hr.

Good Luck!
Rich
 
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