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This project shows the light intensity in voltage form.
This circuit can be use for secrity system which shows some code then store it and lock it.
THIS CIRCUIT CAN ON RELAY WHEN ANY HURDLE REACHED 10 FEET RANGE.
This circuit shows three different state of temperature.
This circuit count the visitor bidirectional way count down and up with sensor.
one sensor and two ealy one for humidity and one for temperature controlller.
solar cahre controller with zero crossing and auto change over wapda to invertor then inver produces different voltages for home appliances.
This circuit shows the temperature and humidity at the same time on lcd.