IR OBSTACLE DETECTION TO ACTUATE LOAD. Introduction. This system is used to turn on a load whenever the IR ray is blocked by an object, person. A 38 KHz signal is generated by 555 timer which is feed to the IR diode
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This system is used to turn on a load whenever the IR ray is blocked by
an object, person.
A 38 KHz signal is generated by 555 timer which is feed to the IR diode
which in turn produces an IR ray of 38Khz.This ray is received by tuned
IR receiver continuously.
Whenever there is an obstacle to the IR ray the receiver sends a signal
to the microcontroller which actuates a load, from its output.
Definition for :- EMBEDDED SYSTEMS
form a component of a larger machine.
controls an automobile engine.
human intervention, and may be required to respond to
events in real time.
An IR LED, also known as IR transmitter, is a special purpose LED that transmits infrared rays in the range of 760 nm wavelength.
Such LEDs are usually made of gallium arsenide or aluminum gallium arsenide. They, along with IR receivers, are commonly used as sensors.
The appearance is same as a common LED. Since the human eye cannot see the infrared radiations, it is not possible for a person to identify whether the IR LED is working or not, unlike a common LED.
To overcome this problem, the camera on a cell phone can be used. The camera can show us the IR rays being emanated from the IR LED in a circuit.
Embedded C , ALP (Assembly Language)
DUMPING SOFT WARE:
Using Micro controller flash Software we are dumping our HEX Code into Micro Controller