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Gadgets Hardware

The Pi House :)

Structurally sound but asymmetric Pi House to house my free range Pi’s. Ingredients: Pi Zero x 2 Pi 3 Orange Pi Cheap Pi casing which fits no Pi

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Featured Tech

How to Easily Configure WiFi in Raspberry Pi

Any version of Raspberry Pi can be very easily configured with WiFi access. Coupled with ssh or vnc, it allows you to manage your Pi remotely. Here is the simplest way I could think of, illustrated by a screenshot and detailed below. Once your Raspberry Pi boots up, you will get to this shiny screen. […]

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Tech

Suggestions for Raspberry Pi Demo & Tutorial for Engineering Students

Next week I am giving a demo of Raspberry Pi and a Tutorial to Engineering students, primarily from Electronics & Computer Science department. I am collecting suggestions on what to show them in this seminar. Currently I have thought about the following items How to use Raspberry Pi to create a mini FM Radio Station […]

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Tech Tutorials

Safest way to Update and Upgrade Raspbian Wheezy (Raspberry Pi OS)

There are plethora of instructions on the web to update and upgrade Raspbian and they work too, under normal conditions. However as Raspberry Pi is increasingly being used for Mission Critical tasks, it is important to adopt a procedure which won’t leave you with broken packages or worst, a un-bootable Operating System with your data […]

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Tech

How to remove Squeak and Scratch from Raspberry Pi: Raspbian Jessie and Wheezy Distro

Raspbian Jessie and Wheezy distribution includes Squeak and Scratch. While these can be helpful educational tools for students which provides a gentle introduction to programming, it doesn’t have much use for others. The following instructions will remove both Squeak and Scratch from your Raspberry Pi (Raspbian distribution). It saves 92.7 MB and 1.15 MB respectively […]

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Tech

How to remove Wolfram Language and Mathematica from Raspberry Pi: Raspbian Jessie and Wheezy distro

Raspbian Jessie and Wheezy distribution includes Wolfram Language and Mathematica. While this can be helpful for students, it doesn’t have much use for others. The following instructions will remove both Wolfram and Mathematica from your Raspberry Pi (Raspbian distribution). It saves 658MB in Jessie. sudo apt-get remove wolfram-engine Reading package lists… Done Building dependency tree […]

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Tech

What I learned and how I recovered from Partition Table corruption due to Power failure and fsck

Had an interesting experience. Our power blinked (rapid off and on) few times. Not only did SuKam UPS pass that through the power fluctuations but continued after power has stabilized. By the time I switched off the computer, the damage was done. It would only boot to Grub prompt. Used a SSD drive from another […]

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Tech

Single line command to install PHP5, MySQL, Apache2, XCache, PHP-Pear on Raspberry Pi

Installing LAMP on Raspberry Pi is very very simple. It takes a single line to execute on terminal / console.

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Tech

How to auto-update CNote, Simple CLI Note Taking Application, to Google Drive Cloud

Super simple command line note taking tool for tracking breadcrumb trail during application development… CNote is a super-simple command line based Note taking application which we use to track changes, take notes before signing-off etc. during development. It can be used on all variants of Unix, Linux and Mac OS. It’s power lies in quickly […]

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Tech

DropBox client on Raspberry Pi

DropBox installer client can be installed from source on Raspberry Pi. The client expects GUI with nautilus installed which is not available by default on Pi. The installation however succeeds. You will need to install libnautilus-extension-dev and python-docutils: apt-get install libnautilus-extension-dev and python-docutils Then install using: ./configure;make;sudo make install However the whole process is in […]