Monthly Archives: April 2015

Understanding the effect of limited precision GPS data on speed distributions

April 29, 2015/0/0/
gps_precision

I've been looking at speed distributions derived from GPS tracking data. When I started to see some strange peaks in the distribution, I investigated to see if they were being caused by the limited precision of my GPS coordinates (My east/west readings were on ~1m precision, but north/south coordinates to only ~11m.) Take a look at this notebook, where I: I [...]

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New Site Format

April 11, 2015/0/0/

I've migrated my blog to this new site, and in the process created a split between my projects, and my blog entries.

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Scraping Weather Data

April 8, 2015/0/1/

We recently had a requirement for UK weather data. A little digging around revealed that hourly weather observation data is available, free of charge from the UK met office, via the uk gov open data site. However, this link above only allows one to download one hour of results at a time, which is a [...]

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Sonart on Pi (Part II: The Application)

April 7, 2015/0/0/

Sonart is my project to control Sonos / Spotify directly via a camera and album covers. I got the application up and running last night, and it works a charm. I have just pushed the initial code to github, and you can find it here: https://github.com/willycs40/sonart/tree/master I plan to make some updates to clean up […]

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Sonart on Pi (Part I)

April 3, 2015/0/0/

Sonart is my project to control Sonos / Spotify directly via a camera and album covers. Since building the POC (see my last post above), I wanted to make this a permanent capability for my Sonos set up. I decided to build a 'production' version, on top of Raspberry Pi hardware. This post is about how [...]

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