Led Blinking
CHAPTER 1 INTRODUCTION
1.1 Background of the Project LED blinking project can be used as attraction. This project was done with PIC16877A. The LED will blinking on delay timer which make the LED look like running. 1.2 Problem Statement The circuit need to off manually or need to cut the voltage to stop the blink. By using the magnetic switch the circuit can off by giving input to the PIC. 1.3 Objective The objective of this project is to develop the LED blinking circuit together with the program.
1.4 Project Implementation
CHAPTER 2 LITERATURE REVIEW
2.0 Background of Study 2.1 LED
A light-emitting diode (LED is a semiconductor light source. LEDs are used as indicator lamps in many devices, and are increasingly used for lighting. Introduced as a practical electronic component in 1962, early LEDs emitted low-intensity red light, but modern versions are available across the visible, ultraviolet and infrared wavelengths, with very high brightness.
When a light-emitting diode is forward biased (switched on), electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. This effect is called electroluminescence and the colour of the light (corresponding to the energy of the photon) is determined by the energy gap of the semiconductor. An LED is often small in area ( and integrated optical components may be used to shape its radiation pattern. LEDs present many advantages over incandescent light sources including lower energy consumption, longer lifetime, improved robustness, smaller size, faster switching, and greater durability and reliability. LEDs powerful enough for room lighting are relatively expensive and require more precise current and heat management than compact fluorescent lamp sources of comparable output.
Light-emitting diodes are used in applications as diverse as replacements for
1.1 Background of the Project LED blinking project can be used as attraction. This project was done with PIC16877A. The LED will blinking on delay timer which make the LED look like running. 1.2 Problem Statement The circuit need to off manually or need to cut the voltage to stop the blink. By using the magnetic switch the circuit can off by giving input to the PIC. 1.3 Objective The objective of this project is to develop the LED blinking circuit together with the program.
1.4 Project Implementation
CHAPTER 2 LITERATURE REVIEW
2.0 Background of Study 2.1 LED
A light-emitting diode (LED is a semiconductor light source. LEDs are used as indicator lamps in many devices, and are increasingly used for lighting. Introduced as a practical electronic component in 1962, early LEDs emitted low-intensity red light, but modern versions are available across the visible, ultraviolet and infrared wavelengths, with very high brightness.
When a light-emitting diode is forward biased (switched on), electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. This effect is called electroluminescence and the colour of the light (corresponding to the energy of the photon) is determined by the energy gap of the semiconductor. An LED is often small in area ( and integrated optical components may be used to shape its radiation pattern. LEDs present many advantages over incandescent light sources including lower energy consumption, longer lifetime, improved robustness, smaller size, faster switching, and greater durability and reliability. LEDs powerful enough for room lighting are relatively expensive and require more precise current and heat management than compact fluorescent lamp sources of comparable output.
Light-emitting diodes are used in applications as diverse as replacements for