LED interfacing is the first thing, one would try to do while getting started with any microcontroller. So here in this tutorial we are going to interface a LED with 8051 microcontroller, and will write a C Program to blink the LED. We have used a very popular microcontroller AT89S52, of 8051 family, by ATMEL.
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LED Interfacing with 8051 Microcontroller
http://circuitdigest.com –
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Threading and Timers in Atmega328p
http://www.engineersgarage.com –
My motivation for this project was to minimize the usage of functions such as _delay_ms(), _delay_us() and their derivatives with some exceptions, like delays to control the LCD.
Delay pauses the whole program, so if one is using delay for 10 seconds everything will pause for those 10 seconds, therefore nothing can be done in those 10 seconds.
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DIY Spectro II
http://topologicoceans.wordpress.com –
If you recall, when last we left our humble spectrophotometer, it was a shambling mess of stone-age technology. Now, its a shambling mess of information-age technology!
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USING AN AVR AS AN RFID TAG
http://scanlime.org –
Last time, I posted an ultra-simple “from scratch” RFID reader, which uses no application-specific components: just a Propeller microcontroller and a few passive components. This time, I tried the opposite: building an RFID tag using no application-specific parts.
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RFID BASED SECURED ACCESS SYSTEM USING 8051
https://www.academia.edu –
RFID based Secured access system implemented on 8051 microcontroller . This is a very useful application of RFID and is very commonly used in institutes, offices, homes and so on. An RFID system consists of a reader device and a transponder. A transponder or tag has a unique serial number which is identified by the reader.
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LCD Interfacing with ATmega32 Microcontroller
http://circuitdigest.com –
The 16x2 will have 32 characters in total 16in 1st line and another 16 in 2nd line. Here one must understand that in each character there are 5x10=50 pixels so to display one character all 50 pixels must work together. But we need not to worry about that because there is another controller (HD44780) in the display unit which does the job of controlling the pixels.
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Automatic Staircase Light using ATmega32 Microcontroller
http://circuitdigest.com –
The circuit works on two conditions - one is presence of light in its location and second is presence of human being, only when these two conditions are met, the controller turns the backup light ON.
These two conditions are tested by two sensors one is LDR and other is Motion sensor module. The LDR senses the presence of light and Motion sensor detects the presence of a human being in its range.
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