For my final project I want to use an infrared Proximity Sensor.
link to video
Sharp GP2Y0A21YK0F
Distance Measuring Sensor Unit
This particular Infrared sensor
-distance measuring sensor
-has integrated combination of a PSD ( position sensitive diode)
and an IRED (infrared emitting diode) and a signal processing circuit.
its features are:
1. distance measuring range of 10 to 80 cm
2. is an analog output type
3. size: 29.5x13x13.5 mm
4. consumption current: typ. 30 mA
5. Supply Voltage: 4.4 to 5.5 V
The Applications to this sensor-
Some ways that it can be used
1. A touchless switch (a faucet sensor to make the water come on)
(Sanitary equipment, Lights)
2. Robot cleaner (Vacuum)
3.energy saving (doesn't sense anyone turns off equipment)
like an ATM or vending machine
How it works-
detects near by objects with out physical contact of said object.
uses electromagnetic waves or radiation (for instance Infrared)
many kinds of Proximity sensors-
Magnetic
Inductive
Infrared
Capacitive
Photoelectric
Radar
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