Saturday, November 15, 2014

Making of PCB Hand drill using VCR motor [Failed]

I got an old VCR motor. I thought of creating Hand drill.
Here are the steps I followed.
Unfortunately drill did not work expected :(
I will try 12 V or using different motor.
Items used:
1) Mini Motor.
2) 1 mm drill
3) Battery 9 V
4) Mini Chuck PCB Drill Bit Holder (bought from ebay here)
5) Micro Push Button
6) Adhesive tape.
7) Scissors.
8) Heat shrink tube (optional)
9) Solder materials

Here is the photo of materials used:

Saturday, November 8, 2014

Open Programmer for pic and atmel

I was looking for a free, open source, USB and Linux based programmer for pic micro controller and guess what, I found this.
http://openprog.altervista.org/OP_eng.html

This is perfect and beyond.
I could make this from the details provided by this site.

Friday, October 31, 2014

Custom made Raspberry Pi case from acrylic

Raspberry Pi, I just love it.
My self and my father tried to create a case from acrylic.
and this was the out come
I am also part of Pi User group






Thursday, October 23, 2014

Digital Photo frame from my old laptop.

Last year I had a blog post to convert track pad to external mouse. link

The same HP pavilion dv2000.
After converting the Hard disk to external, DVD drive to external one and track pad to external mouse, I wanted to reuse the rest of the component left out with the laptop. So I decided to create one Smart Digital Photo frame.
My Goal was to create a wall mount or standing Digital photo frame that when started open a full slide show.
Features:
Operate it with a remote control.
Slide show that show shall have video and image.
The content of the photo shall be updated from out side (Dropbox).
Possibility of online video chat.
Play video.
Use as Internet browser
Use it as a computer for advanced users.

The Making


Thursday, October 2, 2014

Ubuntu 14.04 Installed and Mac Theme

After Installing Ubuntu 14.04 LTS I just saw one blog post

http://www.noobslab.com/2014/04/macbuntu-1404-pack-is-released.html

To theme Ubuntu as mac.

After following the steps, I get this.





There was a video tutorial for making this

My Favourite Software to install on fresh Linux distro

 These are the list of software that I use on a Linux distro.

Recently I have migrated from elementary Linux to Ubuntu 14.04 LTS.

I use computer for browsing, programming(web development, micro controller, desktop applications ), watching some videos and sometimes graphics related works.
This list is not complete I will update as an when a new must have software I find.
System Software:
1) Grub customizer:
 This is the first software I install. I use dual boot for Windows 8.1 and Ubuntu. I want some fancy grub menu selector to switch between windows and Ubuntu.
 You may find the link here
 You can find some really good themes from http://kde-look.org/
 This is the theme I am using

Entertainment:
1) VLC: This is the best and my favourite video player. I use it in windows as well.
http://www.videolan.org/vlc/index.html
2)Google Chrome: I use both Chrome and firefox mainly to test the compatibility of the websites that I create.

Multimedia:
1)Blender: Fantastic 3d Software. I was amazed with this software.
2)GIMP: I find this alternate to Photoshop.
3)Inkscape: A beautiful vector graphics creator.

Web development:
1) git: I use gitlab as a version controller and source safe. This is an excellent alternative to github. Github too being used.
https://about.gitlab.com/
2)filezilla: When it comes to FTP this is the software that I prefer.
3) sublimetext: the alternative to notepad++ that I use in windows

Programming:
1) Android studio: This is alternate to eclipse for android development. recently I moved from eclipse to Android studio.
https://developer.android.com/sdk/installing/studio.html
2)JDK: for android studio require JDK to be inplace.
The version I used is here
3)SDCC: This is a compiler I use for Microchip pic micro controller programming.


Monday, June 23, 2014

Using php CURL get PNR status of Indian railways updated

Declaration and Warning: This is done just for example and I declare i do not have any intention to Create DOS, or it is not indented to harm http://indianrail.gov.in. I am ready to remove the post as well as hosted file if this is going to harm indianrail.gov.in in any way. I am not responsible for anyone using this code for any reason. Use this code at your own risk.
Note: The website is fixed no longer this api works This is an update of the post here
About the API details can be found from the older post.
The changed details are given here.

The final code is maintained in github now. You can find the code here.

What is changed:

1. Site now added Captcha hence captcha to be passed as parameter.
2. Code is provided with some comments.

How is is done is detailed below:

Friday, June 20, 2014

Pic Microcontroller Interfacing I2C SSPADD online calculator.


It is a must to set SSPADD value, when interfacing with I2C device with PIC micro controllers. 
The formula to calculate SSPADD is given below 
Where Fosc is the frequency of the crystal used in PIC micro eg: 20MHz. And Bit Rate is the desired  frequency for the I2C device.
The tool below can be used to calculate the SSPADD.

Crystal frequency :
Bit Rate for I2C    :

Result: In HEX = 0x31 , In Decimal = 49

Friday, January 17, 2014

Godaddy IIS Hosting URL redirection using web.config for SEO

For SEO it is very common for redirecting url.
The scenarios are
Redirecting non-www site to www
Redirecting a popular link which is removed to a new link.

The redirection module in IIS 7 in godaddy hosting is already installed. But I couldn't get support for doing these.

Redirection or rewrite rule is done using web.config. which is placed in the root folder of the website.

Lets take an example of site nirays.com

Thursday, January 16, 2014

Create an infinity mirror LED in simple way

Finally, I was able to create Infinity mirror LED effect.
Please see the YouTube video for the final product.




Contributors