GSM FPRS KEYPAD BASED ATM SECURITY SYSTEM
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EE ENGG
EYE ON CELLPHONE OPERATED LAND ROVER
In this project robot is controlled by cell-phone that makes a call to the cell-phone attached to the robot. In the course of a call if any button is pressed a tone corresponding to the button pressed is heard at the other end of the call the tone is called dual-tone multiple/frequency (DTMF TONE) the robot perceives this DTMF tone with the help of the phone stacked in the robot. The received tone is processed by the ATmega16 microcontroller with the help of DTMF decoder MT8870.The decoder de
EE ENGG
HACKING INTIMATION AND AUTOMATIC VEHICLE PARKING
Here the LCD is used to display the vacant slots in each floor. We use a different COLOUR LINE SENSORS to represent each floor on the vacant slot. As soon as vehicle is parked in the slot intimation is given to mobile and count in the LCD changes. If the vehicle is hacked by unknown, a buzzer intimation is given to security guard by using the VIBRATION SENSOR.
EE ENGG
TWO LEVEL CASCADED INVERTER WITH ELIMINATION OF LOW FREQUENCY HARMONICS USING MICRO CONTROLLER
Multi-level inverters are operating with low frequency and present high efficiency than PWM inverters, because of low switching losses. H-Bridge inverter has significant advantage over other multi level inverter topologies. It requires least number of components; optimized circuit layout and packaging are possible. This project work involves the hardware implementation of two-level cascaded inverter with the elimination of 3rd and 5th harmonics using micro-controller (P89V51RD2).