Thesis Microcontroller Based

Thesis Microcontroller Based-55
A water level controlling mechanism is developed which senses the water level in the tank without any contact with the tank and accordingly controls the pump to fill water into the tank.Here ultrasonic sensors are used to sense the water level in the tank.The relay is accordingly controlled to switch on the load in case the water level is less or switch off the load incase the water level is more.

A water level controlling mechanism is developed which senses the water level in the tank without any contact with the tank and accordingly controls the pump to fill water into the tank.Here ultrasonic sensors are used to sense the water level in the tank.The relay is accordingly controlled to switch on the load in case the water level is less or switch off the load incase the water level is more.

the time taken to move from IR sensor position to another.

A speed limit is set and the distance between the two spots are fixed.

Rash driving is one of major reasons for road accidents.

Most of the road accidents can be prevented if the rash driving is controlled.

Sensors are backbone of plant automation and robotics.

Interfacing their output to the firmware is one of the important areas in industrial applications.Here a device is developed which produces IR rays which can block the rays from the TV remote.The frequency of the IR light is same as the frequency of IR light by the TV remote.These rays are received by the IR receiver and converted to electrical signals which are given to the microcontroller.The microcontroller converts these signals to binary commands and sends these commands in serial form to the computer through a level shifter IC.The ultrasonic sensor senses the liquid level in the water tank and feeds this information to the microcontroller.Based on the input from the sensor, the microcontroller accordingly controls the switching of the relay switch, which is a combination of a transistor and a MOSFET in this case.Output from both the timers drive a NAND gate which in turn drives another timer to trigger a buzzer in case of the speed going more than the set limit.A decade counter shows the time count of the output pulses or counts the clock pulses, i.e.The project uses IR sensors to sense the persons entering and leaving the room and accordingly the control unit controls the switching of the load.The exhaust fans used at homes are used only to expel out hot air from the room.

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