http://hdl.handle.net/123456789/3307 2026-03-11T19:25:16Z 2026-03-11T19:25:16Z THOMSON P BABY, TOGIS THOMAS, VISHNU BALAKRISHNAN,VISHNU N NAIR, ,VYSHAK P A http://hdl.handle.net/123456789/4020 2022-06-27T11:06:37Z 2013-03-01T00:00:00Z

PROPELLER CLOCK THOMSON P BABY, TOGIS THOMAS, VISHNU BALAKRISHNAN,VISHNU N NAIR, ,VYSHAK P A This propeller clock is a special kind of circular LED display. It is making use of POV, Persistence Of Vision, which means that if something appears in the same spot consistently, at least 50-60 times per second, our brains think that it’s permanently there when it is not .This propeller clock is mechanically scanned and displays in digital format. Made from scrap it can be used anywhere and everywhere and the interesting fact is that it’s crystal clear display. Maintenance and repairing of the display is so easy, that anyone having a little electronics knowledge can take care of this. All the synchronizing can be implemented through software. When comes to software part clock works using interrupts and timers This clock consists of 8 bright LEDS which are rotated to show the display,AT89C52 microcontroller,8 resistances(220 ohm),a photo diode, an infrared transmitter, a motor,12 volt battery, a 10 micro farad capacitor.

2013-03-01T00:00:00Z SOUMYA SARA SAMUAL , SUDHEESH KUMAR, SUJEESH K,SYAMILY P S, TESBI TOM S KOLLAPALLIL,THOMAS TOMY http://hdl.handle.net/123456789/3989 2022-06-27T11:06:37Z 2013-03-01T00:00:00Z

MICROCONTROLLER BASED RANDOM NUMBER GENERATOR SOUMYA SARA SAMUAL , SUDHEESH KUMAR, SUJEESH K,SYAMILY P S, TESBI TOM S KOLLAPALLIL,THOMAS TOMY A random number generator using ATMEL that displays a random number between 0 & 9 is the project. The circuit finds variety of applications in our day to day life. The circuit is based on ATMEL UNO microcontroller, seven segment LED display and few passive components. The seven segment LED display is directly connected to the port D of the microcontroller. Push button switch S1 is connected between the seven segment display and ground, whenever the switch is pressed the display is grounded and the current number generated by the controller is flashed in the seven segment display. The microcontroller is programmed with a group of numbers generating randomly. The programming language is c. This randomly generated number is given to the output port with a delay of 2 second. This generated number is assigned a bit pattern in accordance with the seven segment display (common cathode) but the number is not displayed until the switch is pressed. Random number generator finds applications in random number drawing, lot taking, selection process and further more. Moreover it may find application in digital code locking in which two synchronized random number generator and transmitter and receiver are to be used. Further development is required in this section.

2013-03-01T00:00:00Z SARATH M S, SHARUN VITTAPPAN, SEBASTIAN JO THALACKAL,SHONITHA KRISHNAN,SEMITHA MUHAMMED,SOORAJ K http://hdl.handle.net/123456789/3932 2022-06-27T11:06:37Z 2013-03-01T00:00:00Z

MICROCONTROLLER BASED DIGITAL THERMOMETER SARATH M S, SHARUN VITTAPPAN, SEBASTIAN JO THALACKAL,SHONITHA KRISHNAN,SEMITHA MUHAMMED,SOORAJ K "DIGITAL THERMOMETER" is a simple 0-150°C thermometer with 1°C resolution using ATmega328. It consists of two sections. One is a temperature sensor LM 35. LM35 is an analog temperature sensor IC which can measure a temperature range of -55 to 150°C. The other section converts the temperature value into a suitable number in Celsius scale which is done by the ATmega328 microcontroller The LM 35 IC generates a 10mV variation to its output voltage for every degree Celsius change in temperature. Temperature in degree Celsius is displayed using a 16x2 LCD display.

2013-03-01T00:00:00Z ROSEMARY THEKKEKARA, SAFWAN AHAMMED T K M, SAFWAN K, SAJANA M S, SANDEEP S, SANDEEP T http://hdl.handle.net/123456789/3872 2022-06-27T11:06:37Z 2013-03-01T00:00:00Z

MICROCONTROLLER BASED DIGITAL VOLTMETER ROSEMARY THEKKEKARA, SAFWAN AHAMMED T K M, SAFWAN K, SAJANA M S, SANDEEP S, SANDEEP T The project is to detect and measure the supply voltage and display it on the LCD screen. The range of the voltmeter is (0-30) V. The circuit is based on ATMEL UNO microcontroller. It also uses a 16*1 LCD and a few passive components. The microcontroller contains an inbuilt ADC. The analog input is taken through the A0 port of the ADC. The input signal is converted to corresponding digital value. The microcontroller checks whether the input voltage lies within the range of the voltmeter. Then the value is multiplied with a factor to obtain the required value. The LCD is interfaced to the microcontroller. The value is transferred to the LCD using different pins. The input analog value is displayed on the LCD. It is used for measuring voltage within a given range with very high accuracy. Because of the very simple circuit, it finds applications in labs, machines, instruments etc.

2013-03-01T00:00:00Z