16 October, 2014

How to share internet connection in Ubuntu to a Raspberry Pi over LAN cable


Before we dig deep on this subject, I assume we got a Laptop connected to the internet over wifi and we are running Ubuntu on it. Now connect the Raspberry Pi (running raspbian os) to the laptop using a LAN cable. 




To share the internet connection open the Network Manager application and edit the Wired Connection.






 
 
Click on the IPv4 Settings tab and select the Method -  Shared to Other computers.

Once the above steps are complete reconnect the network to get the connectivity over the raspberry pi. 












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16 September, 2014

Raspberry Pi & accessories - purchase guide in India


All the Raspberry Pi accessories are home yesterday. In India there are lot of online purchase options for raspberry pi and accessories from leading online sellers like ebay.in, amazon etc... I would like to tell you from where I collected it rather than where all it can be purchased( That will be gross, since there are whole lot of providers around here)

 


Raspberry Pi B+ SoC

Both these sites sell comparitively less priced B+ boards than ebay/Amazon during the time of my purchase. I chose CrazyPi and got the delivery within a week of the order.


Clear Case for B+

There are better cases available in amazon and CrazyPi.com. The one that I chose was cheaper though good looking. B+ got two LEDs on the board with red and green color. FYI, A transparent/acrylic  case will defenitely look geeky, than the clumpsy plastic case


SD card
Out of the a whole list of SDcards that Pi can run i just chose - Sandisk Ultra microSDHC 16GB Class 10 Memory Card with Adapter. If you need to know the entire list of SD cards supported by the Raspberry Pi, following page will be handy - http://elinux.org/RPi_SD_cards


USB Wifi Dongle

This is seems to be the cheapest wifi dongle that the B+ can run. Need some work around for installing the firmware for the B+, still range is almost similar to my Xperia mini's antenna.

If you are looking for some other options here is your handbook - http://elinux.org/RPi_USB_Wi-Fi_Adapters



USB BlueTooth dongle

Initially I worried whether it will get detected by the rPi, however even during the boot itself you can see the trace of this dongle getting noticed by the Pi.



HDMI cable (if your tv supports hdmi)

Get a cable that is fast and long enough. Ebay got more options than other stores


HDMI to VGA adapter (optional)
Ordinary HDMI to VGA converters dont work with the Pi. You can get one from carzyPi store that have Digital to analog signal conversion chip. This adapter is completely different from the regular hdmi vga converters available in ebay.


5V/750mA Power adapter ( aka your smartphone's charger)

If you want a dedicated power adapter, a NOKIA Lumia's power cable will be the easy option that can output 5 Volts and ~750 mA. In all other cases your smartphones charger will be the alternative.



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27 April, 2010

Quick tip : Laptops

Tip 1: wifi/bluetooth switches in laptops
If you have partiular switch for wifi bluetooth in you laptop then put it always in the ON state physically. They are not so sturdy and are easily prone to complaint. So frequently using these switches will decrease its lifespan.

Better check out your Oparting systen services to enable/disable this services instead of always looking for the switches




Tip 2 :When you buy a laptop

When you are going to buy a laptop give the irst preference to Processor, Motherboard and display instead of looking for the features like good speakers, vibrant color pattern etc...This is because the first three constitutes the important and pricest component in the machine...





Tip 3 : Avoid drinking coffe (conditions apply !!!) 


Try to avoid using moist content near your laptop. It's always a problem to many of the electronic devices...(No restrictions for bear...)



Tip 4 : Using laptop

Avoid using laptop over smooth surfaces like bed cloth etc... This can close the air vents under the laptop preventing the hot air  to flow outside. The system will get heated up, then the fans increase their speed to compensate this speed by increasing the heat further more. Don't make your laptop angry ! ! !



Tip 5 : Use your brain mouse


Use a mouse instead of using a touchpad in your laptop. Coz, mouse is cheaper than a touchpad when you have to replace


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