RFID Based Smart Attendance System

Smart Attendance System has developed based on RFID & Intel Edison Board for Attendance management application for schools, offices & institutes. This system is very easy to use, student or employee will carry a RFID card tags, we will install an attendance system based on RFID reader and Intel Edison in Schools or institutes, The student have to show his RFID card to device, device will scan unique Code RFID Tag, After scanning card id no, the system will search the student on the previously created database. If it found the student on the database it instantly stores date and time of the entry of student. The system can sent email to parents email address after the entry of the student. The system can be accessed from the browser.


This system can be used in many application such as library management, automatic stock entry and so on.

Now-a-days different types of attendance system are available. The system like Barcode system, Smart - card and Bio - metric technology are present. As compare to them RFID is faster than barcode and smart card system and cheaper than bio - metric system, Hence I used RFID for my Project.

Details: http://www.instructables.com/id/Smart-Attendance-System-Intel-Edison-Inside/

Smart Energy Monitoring & Control System (Edison Inside)

Power management has been one of the most hot topics in the past decade because of the decrease in the energy reserves. Power shutdown is a major problem now-a-days and it occurs because a lot of power is wasted in industries. Reducing energy use and waste is necessary as well as good for the environment. Measuring and monitoring your home’s energy con­sumption is the first step toward finding ways to decrease it.

While almost every residence has an electric meter, it usually only shows total household energy (kWh) consumed, although some include instantaneous power being used (kW). And the meter is usually placed where it is convenient for the utility—not for you—to read. But conservation-minded homeowners and renters can choose from several products that measure and record electricity consumption to reveal the energy hogs.

If you want to use energy data to help reduce usage or convince other household members to adopt energy-saving behaviors, my smart power & energy monitoring system is for you. My project deals with this problem in a simple and effective way by auditing power & the energy usage and can be used in home and industries.

My system will monitor:

• Voltage,
• Current

Calculate & Display

• Active power,
• Reactive power,
• Apparent power,
• Power factor and
• Total energy consumption

Send all the data to cloud and graphically show those by different charts & graphs. 

For details click here

PiScope (Raspberry Pi based Oscilloscope)

An oscilloscope is a laboratory instrument commonly used to display and analyze the waveform of electronic signals. In effect, the device draws a graph of the instantaneous signal voltage as a function of time.

Oscilloscopes are used in the sciences, medicine, engineering, and telecommunications industry. Oscilloscopes are very essential and best friend for students, maker, hobbyist and electronics enthusiast. While a digital multimeter can help you measure steady state and RMS (Root-Mean-Square) voltages, the oscilloscope can not only measure peak-to-peak voltages, but more importantly provide timing information on your signal. For instance, have you ever been working with an Arduino controlling a servo motor that has to have just the right pulse width modulation in order to spin clockwise instead of counter-clockwise? During your programming, you may have wondered just how close the pulse width was to what was needed. With an oscilloscope you can measure these pulses. When dealing with analog signals, you can use an oscilloscope to see how close you are to the frequency you need or measure what frequency you need to filter. With so many digital electronic projects, timing between signals is extremely important. Therefore, having an oscilloscope is essential but unfortunately they are very expensive.

 Details of the project

Raspberry Pi Based Wireless FM Microphone

A wireless microphone is a microphone without a physical cable connecting it directly to the sound recording or amplifying equipment with which it is associated. Also known as a radio microphone, it has a small, battery-powered radio transmitter in the microphone body, which transmits the audio signal from the microphone by radio waves to a nearby receiver unit, which recovers the audio. The other audio equipment is connected to the receiver unit by cable. Wireless microphones are widely used in the entertainment industry, television broadcasting, and public speaking to allow public speakers, interviewers, performers, and entertainers to move about freely while using a microphone to amplify their voices.

There are many different standards, frequencies and transmission technologies used to replace the microphone's cable connection and make it into a wireless microphone. They can transmit, for example, in radio waves using UHF or VHF frequencies, FM, AM, or various digital modulation schemes. Some low cost (or specialist) models use infrared light. Infrared microphones require a direct line of sight between the microphone and the receiver, while costlier radio frequency models do not. (-wikipedia)

Once you have the Pi all set up, you’ll be able to amplify your voice with any all-in-one radio or boombox. This could be useful for giving lectures or presentations where it might be hard to hear you and there isn’t a professional PA system. You could also use it in a van or other large vehicle to communicate over the car’s speakers.

Here is the step-by-step instructions how raspberry pi can be used as a very good quality wireless microphone and can be used in class room, seminar, so keep reading. 

For Details Follow the link: 

http://www.instructables.com/id/Raspberry-Pi-Based-Wireless-Microphone/

Arduino & Android Based Bluetooth Controll Password Protected Smart Door Lock (Save your Home)

We everybody are concerned about the security of our home. World becoming smarter and smarter everyday and we want to control and secured our thing in smarter way. In this tutorial I will explain how to made a arduino based DIY smart lock which can be open and closed using password sent from android smartphone by using Bluetooth. 

This smart Lock is the secure, simple, and easy to manage your home’s lock. This lock needs no keys and the lock is attached inside the door and you can control it from outside the door. As the lock is inside the door there is no way to break the door by thief.

You can find some smartphone control lock which required to replace you entire lock system but in my tutorial I will made the thing using your traditional old lock.

This project is based on the android application, android application send password through Bluetooth. An android application is required to open and close the lock and I will explain the details of android app development in the later part of the tutorial. If password is matched to your preset-lock password then lock will be open and sent a feedback to your phone. 

For details please visit : http://www.instructables.com/id/Arduino-Android-Based-Bluetooth-Controll-Password-/

Control your Home and Robot by Missed Call from Cell Phone

You can find lots of projects from internet about controlling things like light, fan, washing machine and your robot from remote location. There are several ways for controlling these remotely such as using DTMF signal from cell phone (required DTMF decoder cricuit), using Bluetooth (require bluetooth module), using Internet (require Internet server,WiFi module or Ethernet Shield and lots of programming) or RF transmitter and receiver (Seeed RF link kit). A microcontroller or Arduino board is common for all systems. 

I am introducing here a completely new and very easy way to control household appliances (light, fan, washing machine) and your robot from remote place by using cell phone. A very small component is required and very easy to made. 

When we call someone from our cell phone we hear several long beep tone from our phone. I will use these tone as a hint to control our thing.

Click here to see detail of Missed call Control Home and Robot

You can read it in Bangle from here

Bugs in Programming

Bugs in Programming

Bug’s is an unexpected defect, fault, flaw or imperfections. In programming jargon, “errors” are known as “bugs”. Debugging is the name that programmers give to the activity of locating and removing errors from programs (once the errors are known to exist, from testing the program).

Programming errors or bugs are fall into three categories.

i.                   Syntax or compilation errors

ii.                 Logical errors or Semantic errors

iii.              Run-time errors

Syntax Errors

Syntax errors are grammatical mistakes. These errors are the easiest to find because they are highlighted by the compiler. Error messages are given. These errors are caused by the failure of the programmer to use the correct grammatical rules of the language Syntax errors are detected, and displayed by the complier as it attempts to translate your program. If a program has a syntax error it cannot be translated, and the program will not be executed.

The compiler tries to highlight syntax errors where there seems to be a problem, however, it is not perfect and sometimes the compiler will indicate the next line of code as having the problem rather the line of code where the problem actually exists.

Forgetting to close the message to printf ( ) with a double quote, omitting the semicolon at the end of each C statement, incorrectly typing the letter O for the number zero (0), or vice versa are some common syntax errors made by all beginning C programmer.

Logical errors

These are the hardest errors to find as they do not halt the program. They arise from faulty thinking on behalf of the programmer. They can be very troublesome. These are mistakes in a program’s logic. Programs with logic errors will often compiled, execute and output result. However, at least some of the time the output will be incorrect. Error message will not appear in case of logic errors, this makes logic errors very difficult to locate and correct.

Run-Time errors

As the name suggests run-time errors occurs at run time when the user directs the computer to perform an illegal operation, e.g.:

      Dividing a number by zero

      Assigning a variable to the wrong type of variable

When a run-time error occurs, the computer stops executing the program, and displays a diagnostic message that indicates the line where the errors occurred.