<% title = Request("ID") if title="" then Response.Redirect("projects.asp") else if title = 17 then titles = "Access Control System" programs = "code" response.write "This project Access Control System is used in the places where we need more security. It can also used to secure lockers and other protective doors. The system comprises a number keypad and the keypads are connected to the 8 bit microprocessor 8085 through the programmable peripheral IC 8255. This is one of the popular microprocessor.
The microprocessor continuously monitor the keypad and if somebody enters the password it will check the entered password with the password which was stored in the memory and if it they are same then the microprocessor will switch on the device.
In our Project we are controlling a electrical device. The password can be an four digit number. If we enter the correct password then the microprocessor will switch on the load. If we want to switch off the load simply press the digit 0 in the keypad." elseif title = 3 then titles = "Automatic Night Lamp with Morning Alarm" programs = "night" response.write "This Project “Automatic Night Lamp with Morning Alarm” was developed using Microprocessor. It is the Heart of the system. The sensors are made with help of LDR which are Light Dependent Resistors, whose Resistance is inversely proportional to the Light falling on it. The LDR converts the light energy into electrical energy and this variable electrical energy was converted into digital signal (0 or 1) by using the timer IC555. The Timer IC output goes low when light falls on the LDR and the timer IC output goes high when the LDR was placed in dark. " elseif title = 16 then titles = "Automatic Plant Irrigator" programs = "plant" response.write "The Project presented here waters our plants regularly when you are out for vocation. The circuit comprises of sensor parts built using op-amp IC LM324. Op-amp’s are configured here as a comparator. Two stiff copper wires (for one sensor) are inserted in the soil to sense the whether the Soil is wet or dry. The Microprocessor was used to control the whole system. It monitors the sensors through the programmable peripheral interface (PPI) IC 8255. When more than two sensors sense the dry condition, then the Microprocessor will switch on the motor and it will switch off the motor when all the sensors goes wet. The Microprocessor does the above job by receiving the signals from the sensors through the PPI, and this signals operated under the control of software which is stored in ROM. We are using the 8 bit Microprocessor 8055 and the programmable peripheral interface IC 8255. " elseif title = 4 then titles = "Digital gates Emulator" programs = "gates" response.write "This project “Digital gates Emulator” is used to emulate the basic gates such us NOT, OR, AND. The system has the selector switch by which we can select any gate. The system has two inputs and one output. We use two SPDT switches for the inputs and for the output we use an LED. The gate selection can be done by the selector switch and it is also indicated on separate LED’s. There are three LED’s provided on the board for the gates NOT, OR, AND. The corresponding LED will glow for the corresponding gate. The main operation is done by the Microprocessor through its ports using the PPI (Programmable Peripheral Interface) IC8255. The microprocessor gets the input through the ports and it will produce the output according to the gate selected. " elseif title = 1 then titles = "Digital Visitor Counter" programs = "visitor" response.write "Digital visitor counter is a reliable circuit that takes over the task of counting Number of Persons/ Visitors in the Room very accurately. When anybody enters into the Room then the Counter is Incremented by one and when any one leaves the room then the Counter is Decremented by One. The total number of Persons inside the Room is displayed on the seven segment displays.
The microprocessor do the above job it receives the signals from the sensors, and this signals operated under the control of software which is stored in the Memory. The sensors are made with help of LDRs which are Light Dependent Resistors, whose Resistance is inversely proportional to the Light falling on it. The Laser Torch is used as the Light source and it is focused on the LDRs, the Microprocessor continuously watches the LDRs. " elseif title = 5 then titles = "Door Bell with Security Feature" programs = "door" response.write "This Project “Door Bell with Security Feature” works such that when someone presses your calling bell switch during the night, not only the bell rings but the bulb connected to it also glows. During day time the when anyone presses the calling switch the bell rings and the light does not glow. The Light will glow during night only. All the above systems are controlled by the Popular 8 bit Intel Microprocessor 8085A. It monitors the bell switch until it pressed, and if it is pressed it will check whether it is day or night and if it is day then the Bell is only switched on and if it is night the Light is also switched on with the bell until the reset switch is pressed. The monitoring for Microprocessor is done by the PPI (Programmable Peripheral Interface) IC8255. " elseif title = 6 then titles = "Electronic Quiz Table" programs = "quiz" response.write "This project can be used in Quiz competitions. The circuit is based on Microprocessor. Simultaneously five players can participate in this game. It has five separate LED’s to indicate who has pressed the key and it also display the number on the seven segment display of the microprocessor kit. The Reset switch is used to reset all the switches and the circuit will get ready for the next round. The above system is monitored and controlled by the 8 bit microprocessor 8085A and using the Ports of 8255. The Microprocessor continuously monitors the five switches and if any one of the switch is pressed then it latches the switch and the microprocessor switch on the corresponding LED and display the number in the seven segment switch. A Buzzer sound is also produced to indicate that some one has pressed any one of the Switch. " elseif title = 8 then titles = "Electronic Security system" programs = "security" response.write "This reliable Electronic Security system can be used in banks, Factories, Commercial establishments. The system comprises two monitoring systems, one is a light detecting system and other is a Loop sensor. When a light falls on the LDR (Light Depending Resistor) then the system generates an alarm sound, and when the loop wire gets opened at any condition then the alarm is switched on. The above system is monitored and controlled by the 8 bit microprocessor 8085A and using the Ports of 8255. The Microprocessor continuously monitors the Loop wire and the LDR through the ports of 8255. if there is an abnormal condition is detected then the alarm is switched on until the fault is cleared. The monitoring for Microprocessor is done by the PPI (Programmable Peripheral Interface) IC8255. " elseif title = 9 then titles = "Electronic token number display with Music" programs = "token" response.write "The Electronic token number display systems are quite popular in banks and financial institutions now-a-days. These can also be used by general practitioners in their clinics to summon patients one-by-one and also by interview committees to call candidates. In most applications there are two sets of displays: a small display is kept inside the cabin of the person who is operating it, and a large one kept outside for visitors. To increase the effectiveness of the token number display system we use Microprocessor to control over all the system. The hardware’s are connected through the ports of Programmable Peripheral Interface ( PPI ) IC8255. The seven segment we use in our project to display the numbers are common anode display and the display’s are connected to a BCD to seven segment decoder IC 74LS47. It can drive the seven segments of the Common Anode Display (CAD). Music is heard through an music buzzer when an two digit was entered through the Keypad of the Microprocessor Kit. " elseif title = 10 then titles = "Fire Monitor" programs = "fire" response.write "This project “Fire Monitor” is used to monitor the Temperature of two Rooms and if the sensor found any fire in the Room then the alarm will be switched ON until the Fire is put off else the Reset button is pressed. The Fire was sensed by using the Thermistor. The Thermistor is a passive device which has a Negative Temperature Co-efficient (NTC), i.e when the temperature increases then the resistance of the Thermistor will decrease. A analog comparator is used for the fire sensor circuit , at normal temperature the output of the comparator is low, and if there is any fire hazard, then the temperature increases and therefore the resistance of the Thermistor decreases and the output of the comparator goes High which Trigger the Microprocessor though the PPI 8255. Then the Microprocessor will switch ON the Alarm for fire. The above system is monitored and controlled by the 8 bit Microprocessor. The Microprocessor continuously monitors the two sensors and if any one of the sensor sense Fire then it latches the sensor and the microprocessor switch on the Alarm according to the software stored on the RAM. " elseif title = 12 then titles = "Infrared Remote Switch" programs = "infrared" response.write "This Project “Infrared Remote Switch” is used to Switch On/Off an electrical appliances which may be Light, Fan etc The Remote control used is an ordinary TV remote control which should be pointed towards the Kit and by pressing any button the device connected to the system will toggle on every button press. The above system is monitored and controlled by the 8 bit Microprocessor. The Microprocessor continuously monitors the Infrared sensor and if it sense infrared signal then it latches the sensor and the microprocessor toggle the load according to the software stored on the RAM. " elseif title = 11 then titles = "Intelligent Emergency Light" programs = "light" response.write "This Project Intelligent Emergency Light will turn on the Emergency light only during the Dark condition. Ordinary emergency light will be switched ON during the power failure condition. So that if there was a power failure in day time the ordinary emergency light will also be switched on. So there is a loss of power. Our system will continuously monitor the light falling on the LDR and when there was no sufficient light over the LDR & there is a power failure then it will switch on the Light. So that the place at which the circuit was connected will always in Bright. And if there is a power failure then the power to drive the emergency light was taken from the Battery supplied with the circuit. The Whole system was controlled by the Microprocessor 8085. It continuously monitors the Light in the Room and it will switch ON the emergency light if there is a power failure and the Room was Dark. " elseif title = 7 then titles = "Multi-Pattern Running light" programs = "running" response.write "Most of the display circuits available in the market are not programmable. The project presented here is fully programmable it provides digital control of all the functions interactively and can be programmed for any desired display sequence. The circuit was build around the popular 8 bit Microprocessor 8085. The External devices are connected through the ports the ports are only available through the IC8255 which has three ports. They are PortA, PortB, PortC respectively. Using the microprocessor we can generate several patterns. The LEDs can be switched On/off according the program and the LEDs are driven through a driver IC Uln2003. it has seven driver inside a single package. " elseif title = 13 then titles = "Number guessing game" programs = "number" response.write "This number guessing game is quite simple. In this game the player thinks of any number between 1 and 99. Then he scans the eight groups of numbers given in the eight boxes in the table. Each group corresponds to a specific switch on an 8-way DIP switch. And the corresponding switch is switch on and the Number will be displayed in the seven segments Display.
The circuit comprises 8 push-to-on switch (S1-S8). Suppose you want to display 47. For this, 4 is to be displayed in tens position and 7 in units position. In order to generate 4 (binary 111) on the display , switches S6, S7, and S8 are to be turned on. The number 47 is placed in groups 6, 7, 8, and 2. So when you spot 47 in these groups, switch on the same combination of switches. On depressing switch S9, 47 appears on the display. Other numbers can be generated using the same procedure. " elseif title = 14 then titles = "Three Colour Display Using Bicolor Led" programs = "display" response.write "This Project Three Colour Display Using Bicolor Led is used to generate several designs of Running Lights. We use Eight Bi-color LED’s for display. The 8 bit Microprocessor is used to control all the operations. It control the LED’s though the Ports of PPI (Programmable Peripheral Interface) IC8255. The above system is monitored and controlled by the 8 bit microprocessor 8085A and using the Ports of 8255. The Microprocessor Switches on/off the LED’s according to the Program. The Power for the circuit is derived from the Step down transformer and the 5V regulator IC7805. The regulator IC produce a constant 5v output The Bicolor LED can display three colors such us Red, Green, Orange. So we can generate several patterns of Designs using the Microprocessor. " elseif title = 15 then titles = "Water level Controller" programs = "water" response.write "The water level Controller is a reliable circuit, it takes over the task of indicating and Controlling the water level in the overhead water tanks. The level of the water is displayed in the LED Bar graph. The Copper probes are used to sense the water level. The probes are inserted into the water tank which is to be monitored. This water-level Controller-cum-alarm circuit is configured around the well-known 8 bit Microprocessor 8085. It continuously monitors the overhead water level and display it and it also switch Off the Motor when the tank fills and it will automatically switch On the Motor when the water level is low. The Microprocessor will also indicate the water level over the LED display. All the input and output functions are done through the Programmable Peripheral Interface IC 8255. " else Response.Redirect("projects.asp") end if end if %>
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