Archive for October 2012

Memento of the day

This page contains 80% of what an Arduino builder should now about analog components! HTH

LudoMTR (Part 6)

Part 1, 2, 3, 4, 5, 6 Here is an improved version of LudoMTR. The speed change ratio can be controlled by a separate potiometer. A synchronisation signal allows better signal display on scope: my RIGOL DS1502E dislikes triggering displays on complex signal! An LED is attached to the thread; this LED glows at a […]

LudoMTR (Part 5)

Part 1, 2, 3, 4, 5, 6 Adjusting the rotor speed requires that the potentiometer is very slowly and constantly move CW or CCW. Failing to do so results in slippery of the magnetic field versus the rotor. In other words, the rotor does not have the time to change speed and looses its synchronisation. Version 2 of LudoMTR includes an […]

Bad news of the day

From  , a French news paper dedicated to economical, financial information: Open data : (French) Government could resign from giving free access to public data. results from a governmental initiative and was launched in December 2011. After few hundred thousands data bases made available to all, the program is in stand by. The bad economy drives people like Olivier Schrameck, a state consultant, to suggest […]


La société Babyloan développe les outils permettant aux particuliers qui le souhaitent de faire des prêts à des micro Entrepreneurs qui veulent se développer. Aujourd’hui, Babyloan, en chiffres, c’est: 18 000 Babyloniens qui ont prêtés plus de 4 000 000€ aidant ainsi plus de 10 000 Entrepreneurs. Babyloan, c’est aussi une équipe qui travaille et anime le […]

Blog of the day

To all the old timers like me who started with electronics right after the tubes and just before ICs invasion: How much time did we spend in fastidious calculations? How many components burnt or even exploded? How many finger burns while prototyping on the fly? How many wasted hours trying to solve buggy electronic circuits? […]

Figure of the Day

Counterize is a very effective WordPress Plugin which helps me understanding Arduinoos visitors interest in order prioritize my posts. Among the statistics from Counterize, blog owners can visualize the “Most seen referring domains”, in other words, the place from where their visitors come from, mostly. And at the top of Arduinoo’s list, far away from any other is…, […]

Including videos in this blog

More efficient than a two hours speech, even more efficient than a drawing, a video is a very usefull communication tool. I must confess my deep ignorance at using these tools and this post contain is more or less my own procedure for including decent video in Arduinoos. Any comments and advises are welcome! The […]

LudoMTR (Part 4)

Part 1, 2, 3, 4, 5 Finally, this the whole picture of the sketch. No library required. /* Copyright (C) 2012 Didier Longueville This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) […]