Jul 27, 2016

An elegant bash one liner to generate a passphrase – shuf from coreutils is the secret ingredient.

Tags: software, bash

Jul 25, 2016

IISc has made Aadhaar mandatory for new admissions this term. This comes as yet another violation of the Supreme Court ruling making Aadhaar purely voluntary – only this time so close to home.

Tags: aadhaar, privacy, iisc

Jul 20, 2016

Yet another passphrase generator, this time one in bash…

Tags: project, software, bash

Jun 11, 2016

A bash script, run periodically by a cron job, to post the day's NASA Astronomy Picture of the Day to GNU Social. The script uses GNU Social's Twitter compatible API to publish notices.

Tags: gnusocial, astronomy, project, software, bash

Mar 24, 2016

SRFI-1 fold and SRFI-41 stream-fold pass arguments to proc in different orders. Violating the principle of least astonishment, this comes as a rather inconvenient surprise to the programmer.

Tags: lisp, scheme, functionalprogramming, software

Jan 20, 2016

My troubles with self hosting a mail server. In the name of countering spam, mail has become such a quagmire of blacklisting, whitelisting, etc. – in other words – censorship. email is in danger of becoming gmail. email is such an elegant set of protocols with decentralization built into its heart. We must not let it become a victim to centralization.

Tags: selfhosting, internet

Jan 18, 2016

This is a republication of an introductory article I wrote for the

Tags: freesoftware

Dec 11, 2014

Any image can be reconstructed using just a superposition of plane waves of different spatial frequencies. This is a numerical experiment using a NumPy script that reconstructs an image one frequency component at a time.

Tags: math, signals, software

Nov 20, 2014

After being stuck in development hell for a few years now, version 2 of the Quiz Buzzer is at last here. The final iteration of polishing/testing/reengineering has been done, and the buzzer is finally complete. The new buzzer is one single all in one board with the LED seven segment display, the display driver circuitry and the controller circuitry all integrated into one monolithic PCB. Finally, from prototype to usable product…

Tags: electronics, project

Oct 16, 2014

An APT image of Cyclone Hudhud I received on October 11 in Bangalore…

Tags: radio, satellite, rtlsdr, sdr, weather

Jul 6, 2014

Manjunath and I have been meaning to do something these hols - you know, just something to feel a sense of satisfaction before diving into regular coursework and stuff next semester. So, we finally decided to attempt a quadrifilar helix for APT reception, and here we are!

Tags: radio, satellite, rtlsdr, sdr, weather, antenna, project

Jun 1, 2014

Just a pleasant Sunday morning's walk to Sankey tank with Tarun and Vaibhav…

Tags: walk

Newer posts

Older posts