A study of LCD displays
Summary :
Table of Contents
- Introduction
- Hardware components
- Micro controller 89C51
- Introduction
- The major features
- AT89C51 microcontroller architecture
- Technical overview of flash memory
- Oscillator characteristics
- Photo diode
- Dark current
- Noise-equivalent power
- LCD module
- Hardware diagrams and flowcharts
- Power supply
- Full wave rectifier circuit
- Comparison of rectifier circuits
- Regulator
- Softwares
- Future enhancement
- Conclusion
Abstract
The important considerations in the present field of electronics and electronic technologies are automation, power consumption and cost effectiveness. Automation is intended to reduce the manpower with the help of intelligent systems. In this project, we are going to count the number of objectives by using the intelligent system called Object counter. In this we place a reflective sensor which will continuously emit IR rays. If any object passes though the sensor it will reflect the IR onto the photo diode which will be inbuilt in the sensor itself. The photo diode will convert the IR signals into electric signals and that out put will be fed to the one of the pin of microcontroller. In this micro controller we are using the Timer as a counter such that the counter will count the number of objects. The data counted by the counter i.e. number of objects passing will be displayed on the lcd display, which will be connected to one of the ports of the microcontroller. Here we are using lcd displays so that we can see the objects. In this project the main components used are Microcontrollers, IR sensors and lcd displays.
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