This post explains about the design, development and operation of the Celsius scale thermometer using LM35 and microcontroller AT89C51. The circuit works on the principle of analog to digital ...

This file type includes high resolution graphics and schematics when applicable. This 8051 microcontroller-based control circuit adjusts the speed of a small permanent-magnet dc motor via photosensors ...

The main intention of this circuit is to build a system wherein the number of persons entering or leaving a room has to be displayed on a screen. This is one of the best and very useful circuits in ...