Category: Technology

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Mapping Surveillance in Bangalore using OpenStreetMap

Table of Contents1 How to add1.1 Using OSMAnd1.2 Using Every Door2 How to get this data3 Surveillance under Surveillance4 What next? For last couple of months I have been driving quite a bit inside the city1. The biggest thing I noticed was the amount of public CCTV cameras across the city. I find...

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How to create Sparklines in LibreOffice Calc

I love using sparklines. I use them everywhere from Google Sheets to web pages. Popularized by Edward Tufte. It’s usually a small line chart without axes or coordinates. Like this . I like them because they go very well with text, without disturbing the flow but significantly adding to the information display. Sparklines...

Screenshot of Python Cosole 3

Python in LibreOffice Macros

Table of Contents1 Macros and Security2 Install3 Create python directory4 APSO – Alternative Script Organizer for Python5 Write your script live6 Save your script and debug7 What next? Are macros still useful? I think yes. Macros give the users ability to programmatically script the content. This can be really useful in many situations...

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BLE Sending more than 20 Bytes of Data

Last year when I was designing the BLE App, one of the hurdle we faced was the packet size. I couldn’t send more than 20 bytes of data at once. So I had to created packets of 20 bytes and send them one by one, with some headers for packet information. On the...

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Using Habitica to Build Habits and GTD

Table of Contents1 Basics2 APIs, Webhooks and Hacks3 CLI4 Data5 Community I have been using Habitica for last two months very religiously. Habitica is an open source project meant to promote good habits by introducing the concepts of role playing game. I started using Habitica in 2015, on and off. But since this...

He sleeps most of the day 0

Monitoring Internet connection at Home using Healthchecks.io, Termux and CouchDB

For last few days we have been running a dog cam to watch Max. whenever we are away. Max is getting older, faster than I think. So even though he is very comfortable staying alone at home 1, we like to keep an eye on him for our sanity. The camera is nothing...