LED THEORY AND WORKING PRINCIPLES R obo I ndia http://roboindia.com
LED Theory and Working Principles
Oct 04, 2015
This presentation of Robo India is explaining the concept, theory and working principles of LED (Light Emitting Diode)
It also explain how to use them.
We welcome your views and queries, we are found at-
website:http://roboindia.com
mail: [email protected]
It also explain how to use them.
We welcome your views and queries, we are found at-
website:http://roboindia.com
mail: [email protected]
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Transcript
Input/output Ports
LED Theory and working principles
Robo Indiahttp://roboindia.comWhat is an LED ?introduction to ledWhat is an LED ?LED stands for Light Emitting DiodeIt is a semiconductor light sourceMostly it is used for indication
introduction to ledLED have TWO legs normally known as Anode and Cathode.
If you have forgotten ANODE is +ve terminal (Long leg)CATHODE is ve terminal (Small Leg)introduction to ledintroduction to led
Connection with MCU
Connection with MCU
As name suggest LED is also a diode and when it is forward biased then electrons are able to recombine with holes in device, as a result it release energy in form of photonsPhenomena ElectroluminescenceColor Depend on energy of photon Working of led LED PRACTICAL
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