Entries by Mathieu ELIE

Arduino + ruby over serial

Sometimes world of embedded devices are not really far from ruby world. I’m currently playing with sensor data and arduino. Sensor data and data science can be amazing. Getting some insights from data of real world. Statistics on sound level snapshots for example… and try to detect wider context from small and poor data. So […]

A list of technologies i loved to work with

Time is runing out and after 8 years spent as an IT professional with more than 4 years for myself here is the technos i worked with. – ruby on rails – django – express.js – node.js – d3.js – angular.js – javascript – coffeescript – websocket – redis – MongoDB – elasticsearch – CouchDB […]

Moving playlist converter to ruby on rails latest

My successful playlist converter application is at this time full browser js. That means there no backend, and so no backend logic even for api calls. This application, a playlist converter from one streaming service to another need to make lot of api calls to each service. This api calls make search for each tracks, […]

I love mosh. Keep your terms up.

I’m using mosh. This app is incredible. It keeps your terms up and even up again after an internet disconnection. It uses UDP and of course both server and client side app. The daemon mosh runs on your server (every distributions) and on client you don’t ssh me@myserver.com but mosh@myserver.com. Super handy, free and clean.

tech news: oneplaylist baby, architecture, elasticsearch

OnePlaylist Baby Just started the development of the successor of my application OnePlaylist. There will be more than one app to be precise but this is the first one and colser to OnePlaylist after pivot. OnePlaylist had more than 4000 visitors a day, so i hope more for the successor on a longuer term: 3 […]

Tech news: Blogging, ruby on rails, my apps

Blogging Yes indeed my english is far for being perfect but i decided to blog again in english. Its better to do stuff than doing nothing. Its the first priority. So here i am. Tech news ? More and more tech… days after days. Even the best CTO and any technical architect can’t handle the […]

node + elasticsearch == it will scale.. or not !!!

I was talking with someone who sait its ok he will scale because the dev is done with node on top of elasticsearch: it is totally wrong ! architecture is not only about database and language a node code could not scale, it can be heavy very fast we don t talk about the load […]

One year of bordeaux city temperature scatter heatmap

Click on the image below to get the original. Last 365 days of temperature of bordeaux city. rows: hours so we have 24 rows columns: days, so the last 365 days circle size: temperature scaled between the colder day and warmer day. Soon you’ll can purchase a serigraphy of my dataviz and maybe dataviz tuned […]

Dataviz: less is more or too much

I am graphing the meteo temperature of bordeaux the last 90 days. Each column is a day and each row is an hour. Each circle is the temperature. The size of the circle is the temperature value between the maximum and minimum of the period, this last 90 days. To my mind it is beautilfull […]

Going QWERTY Underground

Now i’m british since 6 months. Not so easy. I discover the underground part of London. Far from tourism places Far from hype / rich / trendy place Popular british places in real life This is a pleasure at this time. Now i have the sensation to be really in another country. It is not […]