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Why world will be never cooler again !

July 1, 2019 by Madhurendra Sachan Leave a Comment

The below article discusses my point of view in a mix technical fashion. …and everyone is aware hot and cool are relative terms. Long before you touched ice, you never knew what is cooler than water. The moment you touched ice, you immediately altered your definition of cold. Moreover, definition of hot and cold are … [Read more…]

Posted in: Random Tagged: random

IOT Push Button (Like Amazon Dash)

March 24, 2017 by Madhurendra Sachan Leave a Comment

Amazon Dash button is an incredible piece of hardware and another example of “applied engineering” in Amazon, just like Kindle. The inspiration for this project isn’t directly derived from amazon dash, I wasn’t aware of it until I started digging the internet but at end, I had to set the performance goal to Amazon dash, because … [Read more…]

Posted in: arduino, linux, server, snippets Tagged: esp

Cheap BLE : JDY-08

January 15, 2017 by Madhurendra Sachan 3 Comments

Disclaimer : This post is based on my experience which is completely subjective, in no way I am promoting any application or product 😉   I have been trying to get my hands into BLE4.0 modules since long. As always I was looking for small, cheap solution, JDY-08 was one of solution I came across … [Read more…]

Posted in: arduino, linux Tagged: ble

Adding a display over network !

December 23, 2016 by Madhurendra Sachan Leave a Comment

You are doomed if your laptop has only one HDMI Port & you are running Linux in that box. Unlike windows – where there are tons of easy to run solution, & there are still tons of solutions if you have big numbers in your pocket. Certainly – I neither wish to spend money on external VGA/HDMI … [Read more…]

Posted in: linux, server, snippets, Uncategorized Tagged: hack

Just Another DIY “Smart” Watch

November 29, 2016 by Madhurendra Sachan Leave a Comment

Note : This article was written after project was partially completed, so i don’t have better images. There are hundred’s of projects for building “Smart watch using arduino”, I have curated a list of better projects at end of this article. I didn’t plan to copy any of given projects but at end it turned … [Read more…]

Posted in: arduino, linux Tagged: 3d printer, arduino, smart watch

Kindle Universal Dashboard

October 30, 2016 by Madhurendra Sachan Leave a Comment

Kindle is Super awesome ! Because of its e-ink display. I wanted a display to present data which has – Least power consumption, Not painful to eyes & obviously one which doesn’t emit blue light. E-Ink displays fit perfectly to my requirement – acquiring a display which can be driven using Raspberry Pi or Arduino is hard, … [Read more…]

Posted in: javascript, linux, server, snippets Tagged: hack, jailbreak, kindle, nodejs

Custom Nginx with PageSpeed

October 1, 2016 by Madhurendra Sachan Leave a Comment

Pulling nginx from source, customizing & auto updating across servers is a pain,  We use pagespeed & custom header modules across all our servers, it autominifies resources & increases page performance without giving pain. Below is script we use :

Posted in: linux, server, snippets

Offline Wikipedia with Elasticsearch and MediaWiki

August 18, 2016 by Madhurendra Sachan Leave a Comment

Wikipedia is Awesome ! It’s open, its free – Yea. & its huge in size, millions of articles  but as developer how to exploit the free knowledge. I started digging internet just to find ways to exploit my fresh 9+ GB of XML Gzipped archive which seemed to me of no use as even a simple … [Read more…]

Posted in: linux, server, snippets

NodeJs – Improving performance using native binding

March 18, 2016 by Madhurendra Sachan Leave a Comment

This is known fact that javascript is really slow in terms of sync operations like multiplications, divisions etc. – Since nodejs is based on js – Node inherits the curse. Check http://benchmarksgame.alioth.debian.org/u64/compare.php?lang=v8&lang2=gpp this article to cross check the fact. Nodejs is fast in some aspects. I love it 😛 Doesn’t matter how much you improve … [Read more…]

Posted in: javascript, Uncategorized Tagged: nodejs

Email Spoofing – Why its dead !

March 13, 2016 by Madhurendra Sachan 1 Comment

There was a time, when mail spoofing was an art, was a thing to impress people, was a way to phish attack someone. With increasing intelligence in spam filters – it became harder, you need good IP reputation to deliver mail to box. But now it has become almost impossible to spoof address like someone@hotmail.com … [Read more…]

Posted in: server Tagged: dkim, dmarc, email spoofing, spf
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Recent Posts

  • Why world will be never cooler again !
  • IOT Push Button (Like Amazon Dash)
  • Cheap BLE : JDY-08
  • Adding a display over network !
  • Just Another DIY “Smart” Watch

Recent Comments

  • How you can stop email spoofing easily – TIKAJ Blog on Email Spoofing – Why its dead !
  • George Z. on Cheap BLE : JDY-08
  • Madhurendra Sachan on Cheap BLE : JDY-08
  • Jay on Cheap BLE : JDY-08
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Recent Posts

  • Why world will be never cooler again !
  • IOT Push Button (Like Amazon Dash)
  • Cheap BLE : JDY-08
  • Adding a display over network !
  • Just Another DIY “Smart” Watch

Archives

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Recent Comments

  • How you can stop email spoofing easily – TIKAJ Blog on Email Spoofing – Why its dead !
  • George Z. on Cheap BLE : JDY-08
  • Madhurendra Sachan on Cheap BLE : JDY-08
  • Jay on Cheap BLE : JDY-08
  • Risabh Kumar on Maintaining JS Libs – Changing bower path

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