How to get serial number of laptop from Command Prompt

Hi friends, recently one of my friend was asking about how to know the serial number of his laptop as his sticker pasted on the back of laptop has been ruined and was not visible from there.

So there is a remedy for that a small command you can run over your command prompt to know the serial number whether its a Dell, Compaq ,Hp or Acer laptop. (Brand doesn't matter only platform matters that it should be Windows)

In the Run windows (Windows + R) type "cmd" and press enter to open the command prompt window.
On cmd window write the following command :
>wmic bios get serialnumber (Press enter)

Voila you will get the serial number of your laptop.
Its a simple way to know your laptop's serial number instead of turning it around while you are working.

WMIC stands for Windows Management Instrumentation Command-line.

Distance Finder and Temperature meter using Arduino microcontroller

Hello friends!! Its been a long long time since I visited my blog now I have decided to write a post on Arduino technology.
So my techie friends who wish to work with electronic components here's a golden chance to understand and start your field of interest from here only.
To learn more about Arduino, please go through Wikipedia's link. http://en.wikipedia.org/wiki/Arduino

Click on the image to get a bigger view of what I have made.

Things you would be requiring before starting off the project:

1. Firstly installing the Arduino IDE for compiling and uploading the code on Arduino chip. Here is the link: http://arduino.cc/en/main/software

2. Arduino UNO R3 - Rs.1395 (http://fabtolab.com/UNO-R3?search=arduino%20uno)

3. 16x2 Character LCD Module - Rs.230 (http://fabtolab.com/16x2-LCD-Module-Green)

4. TMP 36 IC - Rs.85 (http://fabtolab.com/sensors/temperature-sensors/TMP36GT9Z-temperature-sensor)

5. HC-SR04 - Rs.135 (http://fabtolab.com/sensors/distance-proximity-sensors/HC-SR04-ultrasonic)

6. Buzzer - Rs.14 (http://fabtolab.com/5V-piezo-buzzer)

7. Male Headers(used for soldering on LCD) - Rs.6 (http://fabtolab.com/components/miscellaneous-components/male-headers)

8. Breadboard - Rs.125 (http://fabtolab.com/breadboard-850-pts)

9. Rest you require are few male to male cables to connect the components.- Rs.100 (Various sizes available on FabtoLab.com)

Plus Shipping - Rs.55

This project has costed me around 2100 bucks. But seriously spending this much amount on it is worthy.

Interfacing diagram of HC_SR04 which is the ultrasonic sensor used to find distance by sending and receiving ultrasonic waves and calculating their time. This is a high precision device with the precision of 0.3 cm and its range is: 2cm – 450 cm
Personally I have tested this device till 350 cms. If anybody has tested with more range ,please drop me a mail.

Interfacing diagram of LCD with Arduino. It can display 16 characters per line and there are 2 such lines.

Below is the LCD pinout for deep understanding the interfacing.

Interfacing diagram of TMP36 module

1st pin : 5V
2nd pin : A0 on arduino
3rd pin : GND on arduino

Interfacing diagram of Buzzer: It is optional for producing beep sound if distance becomes less than 20 cms.

+ve of buzzer - 9 Digital pin which is PWM pin
-ve of buzzer - GND of arduino

NOTE: This device can only work as temperature monitor or distance finder at once.
Here is the arduino code available for download.

Temperature Monitor: http://www.mediafire.com/view/1uo3x9gr7ge7huz/LCD_Thermometer.ino

Distance Finder: http://www.mediafire.com/view/93wmy47pkr5pkbc/LCD_distance_finder.ino

Likes and Shares are always appreciated. Keep reading for more Arduino projects.