Top Grabbed

These are the products that hobbyists around you are buying the most. There must be something really, really good about them...
Microcontroller Based Digital Clock With Alarm Save Rs. 500.00

Microcontroller Based Digital Clock With Alarm

by KNS Pvt Ltd
Save Rs. 500.00
Rs. 5,000.00
Rs. 4,500.00

Product Description

In this project, we use Dallas Semiconductors RTC DS12C887 to keep the time updated and display it on LCD for the end user. It can also give the alarm on user defined time. All the operations are controlled by 8-bit Microcontroller. Microcontroller read the time from DS12C887 RTC and display it on LCD in real time. It also controls the alarm.

 

Click here to Download PDF

 

 

Electronic Voting Machine Save Rs. 200.00
Rs. 690.00
Rs. 490.00

Electronic Voting Machine

Electronic Voting Machine

by KNS Pvt Ltd
Save Rs. 200.00
Rs. 690.00
Rs. 490.00

Summary

Here you can make an electronic voting machine which is based on ATmega16A microcontroller. To cast a vote, users need to press the key against the name of the candidate of their choice. The vote is automatically saved in the microcontroller, and simultaneously the LCD shows the message “Thank You.”

Microcontroller Based Water Level Controller cum Motor Protector

by KNS Pvt Ltd
Save Rs. 201.00
Rs. 1,700.00
Rs. 1,499.00

Summary

The Micro-controller based Water Level Indicator cum Motor Protector circuit uses the micro-controller AT89C51 as the main controller. It can be used to switch ON and OFF the motor depending upon the level of the water in the tank. The status is displayed on an LCD module. The circuit also protects the motor from high voltages, fluctuations of mains supply and dry running.

Product Description

The Microcontroller based Water Level Controller cum Motor Protector controls ‘on’ and ‘off’ conditions of the motor depending upon the level of water in the over head tank (OHT), the status of which is displayed on an LCD module. The circuit also protects the motor from high voltages, low voltages, fluctuations of mains power and dry running.


Working

The circuit of the Microcontroller based Water Level Controller cum Motor Protector comprises of the operational amplifier LM324, microcontroller AT89C51, optocoupler PC817, regulator 7805 and an LCD module. Port pins P2.0 through P2.2 of the AT89C51 (IC2) are used to sense the water level, while pins P2.3 and P2.4 are used to sense the under-voltage and over-voltage, respectively. Pin P3.4 is used to control relay RL1 with the help of optocoupler IC3 and transistor T5 in the case of under-voltage, over-voltage, and different water-level conditions. The LM324 (IC1) is a quad operational amplifier (op-amp). Two of its op-amps are used as comparators to detect under- and over-voltage. In normal condition, output pin 7 of IC1 is low, making pin P2.3 of IC2 high. When the voltage at pin 6 of N1 goes below the set reference voltage at pin 5 (say, 170 volts), output pin 7 of N1 goes high. This high output makes pin P2.3 of IC2 low, which is sensed by the microcontroller and the LCD module shows ‘low voltage.’

In normal condition, pin 1 of N2 is high. When the voltage at pin 2 of N2 goes above the set voltage at pin 3, output pin 1 of N2 goes low. This low signal is sensed by the microcontroller and the LCD module shows ‘high voltage.’
Presets VR1 and VR2 are used for calibrating the circuit for under- and over-voltage, respectively. When water in the tank rises to come in contact with the sensor, the base of transistor BC548 goes high. This high signal drives transistor BC548 into saturation and its collector goes low. The low signal is sensed by port pins of microcontroller IC2 to detect empty tank, dry sump, and full tank, respectively.

When water in the tank is below sensor A, the motor will switch on to fill water in the tank. The LCD module will show ‘motor on.’ The controller is programmed for a 10-minute time interval to check the dry-run condition of the motor. If water reaches sensor B within 10 minutes, the microcontroller comes out of the dry-run condition and allows the motor to keep pushing water in the tank. The motor will remain ‘on’ until water reaches sensor C. Then it will stop automatically and the microcontroller will go into the standby mode. The LCD module will show ‘tank full’ followed by ‘standby mode’ after a few seconds. The ‘standby mode’ message is displayed until the water in the tank goes below sensor A.

In case water does not reach sensor B within 10 minutes, the microcontroller will go into the dry-running mode and stop the motor for 5 minutes, allowing it to cool down. The LCD module will show ‘dry-sump1.’ After five minutes, the microcontroller will again switch on the motor for 10 minutes and check the status at sensor B. If water is still below sensor B, it will go into the dry-running mode and the LCD module will show ‘dry-sump2.’ The same procedure will repeat, and if the dry-run condition still persists, the display will show ‘dry-sump3’ and the microcontroller will not start the motor automatically. Now you have to check the line for water and manually reset the microcontroller to start operation. In the whole procedure, the microcontroller checks for high and low voltages.

For example, when the voltage is high, it will scan for about two seconds to check whether it is a fluctuation. If the voltage remains high after two seconds, the microcontroller will halt running of the motor. Now it will wait for the voltage to settle down. After the voltage becomes normal, it will still check for 90 seconds whether the voltage is normal or not. After normal condition, it will go in the standby mode and start the aforementioned procedure.
 

Click To View Circuit Diagram

 

Click here to Download PDF

RFID Based Attendance System Save Rs. 500.00
Rs. 6,000.00
Rs. 5,500.00

RFID Based Attendance System

RFID Based Attendance System

by KNS Pvt Ltd
Save Rs. 500.00
Rs. 6,000.00
Rs. 5,500.00

Product Description

The main objective of the system is to uniquely identify and to make attendance for a person. This requires a unique product, which has the capability of distinguishing a different person. This is possible by the new emerging technology RFID (Radio Frequency Identification). The main parts of a RFID system are RFID tag (with unique ID number) and RFID reader (for reading the RFID tag). In this system, RFID tag and RFID reader used are operating at 125KHz.

Click To View Circuit Diagram

Click here to Download PDF

DTMF Based Home Security System Save Rs. 500.00
Rs. 4,000.00
Rs. 3,500.00

DTMF Based Home Security System

DTMF Based Home Security System

by KNS Pvt Ltd
Save Rs. 500.00
Rs. 4,000.00
Rs. 3,500.00

This DTMF based home security system keeps your home secured against any unauthorised intrusion.

Learning from this project

Embedded systems

Product Description

Security is a prime concern in our day to day life. The DTMF based security system presented here is an access control that allows, only an authorized person to access a restricted area. This system is suitable for corporate offices, ATMs and home security among other applications.

The system comprises a small electronic unit with a mobile keypad which is outside the entry door to control a solenoid-operated lock with help of a D.C. motor. When an authorized person enters the predetermined password via the hand held mobile keypad from some other place, the stepper motor is operated for a limited time to unlatch the solenoid operated lock so the door can be opened. At the end of the preset delay, the stepper is operated in the reverse direction and door is locked again.

By: HBeonLabs Technology Pvt. ltd., Product assembled by HBeonLabs

 

Click here to Download PDF

Microcontroller Based Speedometer cum Odometer Save Rs. 200.00

Microcontroller Based Speedometer cum Odometer

by KNS Pvt Ltd
Save Rs. 200.00
Rs. 1,200.00
Rs. 1,000.00

Summary

The Micro-controller based Speedometer cum Odometer is a digital speedometer cum odometer can be installed with a motorbike. The circuit uses an AT89C2051 microcontroller, a 16x2 LCD display, 4N35 optocoupler, 24C02 EEPROM and some easily available components. The features of this digital Speedometer cum Odometer are:

1. Digital readout

2. Speed displayed in km/hour

3. Distance traveled displayed in kilometers

4. Readings saved in non-volatile memory (EEPROM)

5. Reliability due to the use of the microcontroller

6. No mechanical wear and tear

7. Home-brewed speed transducer/sensor

8. Self-reset to zero after completion of 99,999.9 km

9. Easy to build and fix onto the bike

Learning

Things which you can learn:

*Programming and Application of the AT89C2051 microcontroller
*Interfacing of an LCD module
*Application of reed switches and optocouplers for sensing
*Concepts of EEPROM storage
*Concepts and implementation of I2c protocol

 

Product Description

Build a simple circuit which can digitally measure the speed and the distance covered by a vehicle and display it in an awesome 16*2 LCD for you to know.

Working:

A 2 0 - p in the AT89C2051 microcontroller from Atmel is used here because of its low pin count, affordability, and compatibility with CISC-based 8051 family. This microcontroller features 2 kB of Flash, 128 bytes of RAM, 15 input/output (I/O) lines, two 16-bit timers/counters, a five-vector two-level interrupt architecture, a full-duplex serial port, a precision analog comparator, on-chip oscillator and clock circuitry.

LCD module to display the speed and distance traveled, we have used a 16x2 alphanumeric LCD based on HD44780 controller. The backlight feature of the LCD allows data to be visible even at night. The readings of the distance traveled are saved in an external serial EEPROM. Here, a 24C02 serial EEPROM based on Philips I2C protocol is used.

Let’s assume that the MCU wants to send data to one of its slaves. First, the MCU will issue a START condition. This acts as an ‘attention’ signal to all of the connected devices. All ICs on the bus will listen to the bus for incoming data. Then the MCU  sends the address of the device it wants to access, along with an indication whether the access is a ‘read’ or ‘write’ operation. Having received the address, all ICs will compare it with their own address. If it doesn’t match, they simply wait until the bus is released by the stop condition.

If the address matches, the chip will produce a response called ‘acknowledge’ signal. We have used write operation in this project. Once the MCU receives the acknowledge signal, it can start transmitting or receiving data. In our case, the MCU will transmit data. When all is done, the MCU will issue the stop condition. This signals that the bus has been released and that the connected ICs may expect another transmission to start any moment.

GSM Based Heartbeat Monitoring System Save Rs. 500.00
Rs. 5,000.00
Rs. 4,500.00

GSM Based Heartbeat Monitoring System

GSM Based Heartbeat Monitoring System

by KNS Pvt Ltd
Save Rs. 500.00
Rs. 5,000.00
Rs. 4,500.00

Summary

By the use of GSM, we can send the report directly to the doctor by simple text message.

Product Description

The method used to carry out this project is the principle of serial communication in collaboration with embedded systems. This is a very good project for Hospital. This project has a GSM based heartbeat monitoring system, which will be used as the electronic device, and also a GSM modem, which is the latest technology used for communication between the mobile and the embedded devices. The system will continue monitoring the heartbeat of the patient and send the message to the doctor when the pulse is high through the subscriber identity module (SIM) which is inserted in the system modem.

Brand: HBeonLabs, Product assembled by HBeonLabs.

 

Click here to Download PDF

 

Intelligent Metro Train Save Rs. 600.00
Rs. 6,000.00
Rs. 5,400.00

Intelligent Metro Train

Intelligent Metro Train

by KNS Pvt Ltd
Save Rs. 600.00
Rs. 6,000.00
Rs. 5,400.00

Summary

Future era train which has very advanced features.

Product Description

This project is designed so that students can understand the technology used in the now a day’s drive less metro train which is used in most of the developed countries like Germany, France, and Japan etc. These trains are equipped with the CPU, which controls the train. The train is programmed for the specific path. Every station on the path is defined; stoppage timing of the train and distance between the two stations is predefined. This is a very wonderful project to control the working of the train without a driver.

Brand: HBeonLabs, Product assembled by HBeonLabs

 

Click here to Download PDF

 

 

Biomedical Monitoring System with GSM Save Rs. 500.00
Rs. 5,000.00
Rs. 4,500.00

Biomedical Monitoring System with GSM

Biomedical Monitoring System with GSM

by KNS Pvt Ltd
Save Rs. 500.00
Rs. 5,000.00
Rs. 4,500.00

There has been an improvement in communication links and a lot of progress in advanced communication technologies in the recent years. In spite of this, there are few functioning commercial wireless monitoring systems, most of which are offline, and there are still a number of issues to deal with. There is a strong need for investigating the possibility of design and implementation of an interactive real-time wireless communication system. This project builds a generic real-time wireless communication system designed and developed for short and long term remote patient-monitoring, applying wireless protocol.

The primary function of this system is to monitor the temperature and heart beat of the patient and the data collected by the sensors are sent to the microcontroller. The microcontroller transmits the data over the air. At the receiving end, a receiver is used to receive the data and it is decoded and fed to a microcontroller, which is then displayed on the LCD display. If there is a dangerous change in patient status an alarm is also sounded.

Brand: HBeonLabs, Product assembled by HBeonLabs

 

Click here to Download PDF

 

PIC Microcontroller Based Electronic Lock Save Rs. 200.00

PIC Microcontroller Based Electronic Lock

by KNS Pvt Ltd
Save Rs. 200.00
Rs. 1,200.00
Rs. 1,000.00

Summary

An electronic lock allows only an authorized entry to your home. This circuit comprises of a PIC16F877A MCU which plays the role of a processing unit. It is interfaced with a 4×4 matrix keypad for entering the password and a 16×2 LCD for display. When a correct password is pressed it energises the relay and lock is opened.

Learning

Things which you can learn:
* PIC Architecture
*PIC programming
*Interfacing 4*4 matrix
*Interfacing LCD Module 16*2
*Interfacing of relay
*Application of Transistors as amplifier

Product Description

A sophisticated electronic lock based on PIC microcontroller to secure your home or office.

Working:

The circuit is based on PIC micro controller. It can be divided into five sections: input(4×4 matrix keypad), processing unit (PIC16F877A MCU), appliance controller (relay driver), display (16×2 LCD), and power supply.


PIC16F877A MCU. The PIC-16F877A is an 8-bit micro controller. It has 8k×14-bit flash program memory, 368 bytes of RAM and many other internal peripherals like analogue-to-digital converter, USART, timers, synchronous serial port, compare captures and pulse width modulation modules, EEPROM and analog comparators. The job of the MCU in this project is to receive signals from the input device (keypad) and take corresponding actions. Whenever any key is pressed on the keypad, the software program in the MCU identifies the pressed key and accordingly turns on or turns off the appliance. Simultaneously, it also displays a message on the LCD screen.


4×4 matrix keypad. A 4×4 matrix keypad is used to give commands and the password to the MCU. It consists of 16 keys (S2-S17) arranged in the form of a square matrix of four rows and four columns. Each key in the matrix is labeled according to the operation assigned to it.
16×2 LCD. A Hitachi HD44780 16×2 LCD is used to display various messages. It also displays an asterisk mark (*) for each digit of the password entered. Control lines EN, RW and RS of the LCD module are connected to pins RA1, RA2, and RA3 of Port A of the MCU, respectively. Commands and the data to be displayed are sent to the LCD module in nibble mode from Port D of the MCU. The higher four data bits of the LCD (D4 through D7) are connected to the lower nibble of Port D (RD0 through RD3) of the MCU.


Relay driver. RC2 pin of Port C of the MCU is interfaced with the relay driver circuit to switch on or switch off the AC load (appliance). A relay driver circuit is nothing but a simple electronic circuit that drives an electromechanical relay. In this project, a 6V, single-changeover relay is used for switching the appliance ‘on’ or ‘off.’ Transistor SL100 plays the role of the relay driver. Whenever the user enters the correct password, RC2 pin goes high. Consequently, transistor SL100 is triggered to energise the relay and the appliance turns‘on.’ When RC2 is low, the appliance turns ‘off.’Free-wheeling diode 1N4007 protects the relay driver circuit from the reverse voltage developed in the relay coil.


Power supply. Fig. 2 shows the power supply circuit. The 230V AC mains supply is stepped down to 9V AC using step-down transformer X1. The output from the secondary of the transformer is rectified by a bridge rectifier comprising diodes D3 through D6 and filtered by capacitor C1. The filtered output is regulated by ICs 7805 and 7806 connected in parallel to obtain the required 5V and 6V, respectively.

 

Click here to Download PDF

 

Robotics Self-Learning Kit Save Rs. 200.00
Rs. 3,100.00
Rs. 2,900.00

Robotics Self-Learning Kit

Robotics Self-Learning Kit

by KNS Pvt Ltd
Save Rs. 200.00
Rs. 3,100.00
Rs. 2,900.00

Summary

A complete self-learning kits for engineering students and electronic aspirants for learning Robotics.

Learning

Using this product it will be easy to make different robotics application some of the application mentioned below:

1. Line follower
2. Obstacle robot
3. Edge avoider
4. Wall following robot
5. Path remembering robot

Product Description

ThinnkWare feel proud to introduce the best product of industry "Robotics Self-Learning Kit".

Kit content:

Robotics Parts - Chassis, Gears, 150 RPM BO Motors, Nuts, Screws etc...
AVR development Board with all inbuilt interfacing.
AVR USB Programmer
Sensor (TSOP Sensor) - 2
USB cable
6 Cell Battery holder with DC Jack
Single pin burge strip (F2F) - 6
Program CD ( Datasheet / Application notes/Software/ Sample Program)
Assembly guide.
LCD 16*2
AVR theory hand book

 

PIC Microcontroller Self Learning Kit Save Rs. 460.00
Rs. 4,000.00
Rs. 3,540.00

PIC Microcontroller Self Learning Kit

PIC Microcontroller Self Learning Kit

by KNS Pvt Ltd
Save Rs. 460.00
Rs. 4,000.00
Rs. 3,540.00

Product Description

ThinnkWare feels proud to introduce the best product of industry. From now to study about PIC Microcontroller (Manufactured by Microchip) you are not supposed to go to a classroom or any institution. Just be at home and learn the PIC microcontroller and its programming. We will always be with you in process of learning.

Kit content:

PIC development Board with all inbuilt interfacing
16*2 Alphanumeric LCD
Compatible PIC KIT2.
Stepper Motor
Sensor (TSOP Sensor)
Matrix Keypad
Temperature Sensor
6 Cell Battery Holder with DC Jack.
Burge strip connector F2F
Program CD ( Datasheet / Application notes/Software/ Sample Program)
Free Study Material Book.

Online assignment and assessment will be done.

RFID cum GSM Attendance System Save Rs. 2,001.00
Rs. 12,000.00
Rs. 9,999.00

RFID cum GSM Attendance System

RFID cum GSM Attendance System

by KNS Pvt Ltd
Save Rs. 2,001.00
Rs. 12,000.00
Rs. 9,999.00

Summary

A person marks the attendance by swiping the tag near RFID reader module and the message will be sent whenever the card is swept or any attendance is marked.

Learning

EMBEDDED SYSTEM

Product Description

Attendance monitoring is very simple. This System assigns a unique card for each Student. A Student places the RFID card in the RFID card Reader. The RFID card Reader reads down the Student details. The details will be indicated on the LCD display and send through GSM modem to parents the display also indicates the current time. The Interface software is responsible to control the door depends upon the data base verification. The holding capacity (number of Students) depends upon the memory interfacing, i.e., whether interfacing with PC or separate RAM units. This project is implemented using RFID card reader, 89S52 microcontroller, driver unit for door/locker control and LCD display is used to display the tag details,



Brand: HBeonLabs, Product assembled by HBeonLabs

 

Click here to Download PDF

 

Secured Room Access System Save Rs. 151.00
Rs. 1,500.00
Rs. 1,349.00

Secured Room Access System

Secured Room Access System

by KNS Pvt Ltd
Save Rs. 151.00
Rs. 1,500.00
Rs. 1,349.00

Summary

Gone are the olden days where you have to have a key to open and access a room. Now no more, build yourself a cool digital secured room access system and enter into a new dimension.

The Secured Room Access System is a micro-controller based digital access control system that allows only authorized persons to access a restricted area/room. The system demands a password from the user trying to gain entry into a restricted area/room. When someone attempts to gain entry to the restricted area/room by guessing the correct password and continuously entering invalid passwords, the system locks its operation and can be unlocked only by the master user. No. of ICs used: 3

Learning

Things which you can learn :
*Learn interfacing of keypad matrix with the ATmega 8535.
*Learn interfacing of LCD module with micro-controller output.
*Use of relays to drive loads.

Product Description

The Secured Room Access System comprises of a small electronic unit with a numeric keypad, which is fixed outside the entry door to control a solenoid-operated lock. When an authorized person enters a predetermined number (or set password) via the keypad, the relay energizes for a limited time period and unlocks the solenoid-operated door lock. At the end of the preset delay, the relay de-energizes and the door gets locked again.

Working

The system uses a compact circuit built around the ATmega8535. A switch (S3) is used to reset the system, which is accessible only to the master user. Port D (PD0 through PD7) of the Atmega8535 is interfaced with the numeric keypad. Port C is interfaced with a 16-x2-line LCD. Four pins (PC4 through PC7) of Port C are used as data lines for the LCD module and three lines (PC0 through PC2) are used for controlling the LCD. Pin 40 of port A is connected to the relay driver circuit through optocoupler MCT2E (IC3) and transistor T1.

When port pin PA0 goes high, the internal transistor of IC3 drives transistor T1 into saturation and relay RL1 energizes. As the solenoid valve is connected through normally-closed (N/C) contact of the relay, the solenoid coil de-energizes and the gate is locked. A 16-key numeric keypad for password entry is connected to the micro-controller. The keypad is also used for password change and application of master password when required. The keypad is arranged in a 4x4 matrix. There are four scan lines/pins, which are set in output mode, and four sense keys, which are used as input lines to the micro-controller. At a small time interval, the micro-controller sets one of the four scan lines as low and the other three scan lines as high.

Then it checks for the status of sense lines one by one at the intersection of a specific scan line and sense line to find out if any key has been pressed. Similarly, after a small time interval, the next scan line is made low and remaining three scan lines are taken high, and again all three sense lines are checked for low level. This way the micro-controller checks which of the 16 keys is pressed. Due to the high speed of the micro-controller, the status of different keys is checked in less than 100 ms and a key press is detected and identified. As the keys are pressed manually by the user, this delay of 100 ms is not noticeable.

When a person wants to enter the room, he enters the 6-digit password, say ‘123456.’ If the password matches successfully, the gate is unlocked for 15 seconds. If you want to change the user password (123456) and enter the master password ‘291279,’ the system will ask you to change the user password. On successfully entering the password, pin A0 of port A becomes high for 15 seconds, because of which transistor T1 starts conducting through the emitter of the optocoupler and the relay energizes. The connection between the solenoid lock and the power supply is broken and the door is unlocked for 15 seconds.

Click To View Circuit Diagram

Click here to Download PDF

Microcontroller Based Temperature Controller Save Rs. 401.00

Microcontroller Based Temperature Controller

by KNS Pvt Ltd
Save Rs. 401.00
Rs. 4,000.00
Rs. 3,599.00

Product Description

The aim of this project is to design an ambient temperature measurement circuit. The motivation for doing this project is the fact that temperature measurement has become an integral part of any control system operating in a temperature sensitive environment and the various learning outcomes associated during the implementation of the project.

In this project, the ambient temperature will be displayed on an LCD. An 89s52 Microcontroller will be used for handling all the required computations and control.

A temperature sensor DS 1820 is used for sensing the ambient temperature. The system will get the temperature from the IC and it will display the temperature over the seven segment display and this temperature was compared with the value stored by the user and if the Room temperature goes beyond the Preset temperature then the fan will on and if temperature goes below to a fixed value then heater will on.

 

Click here to Download PDF