Archive for September 2012

LudoMTR (Part 3)

Part 1, 2, 3, 4, 5, 6 Code The code for the driver is pretty simple. The set up section contains the instructions for setting PORTB and PORTD selected pins as output pins. /* Set ports directions */ DDRD |= (maskD); DDRB |= (maskB); Some place in the skecth we’ll find a function which will be responsible for switching PRTB and […]

LudoMTR (Part 2)

Part 1, 2, 3, 4, 5, 6 Electrical Arduino can deliver up to 40 mA per pin, this is not enough for driving our motor. The use of multiple pins in parallel allow more current (200 mA) to be drawn from Arduino. A limiting resistor will prevent excessive current to be sunk. With V = 5V, Imax = 200mA, R = […]


For some reasons, I deactivated the comments option while moving my blog 🙁 Comments are now re-activated 😉 All you have to do is register. To do so, click on Register at the bottom of the right hand side column. Fill in your pseudo and email address. Once you get the confirmation message from your mail […]

LudoMTR (Part 1)

Part 1, 2, 3, 4, 5, 6 LudoMTR is introducing a new sort of posts. The idea is to setup funny applications which require few hardware or electronic components and the simplest code. As per its name, ludo (from the latin verb ludere = play) motor enables a real minimal electrical engine. This short video illustrates LudoMTR: Get the latest Flash […]

Extremely Low Frequency Electro Magnetic Field Sensing (Part 4)

Part 1, 2, 3, 4, 5 FFT posts are the far most visited pages from Arduinoos, and MicroELFEMF is one of the simplest and cheapest example of implementing this complex function. I got many requests and questions related to this subject, which drove me to publish some more explanations. Understanding frequency bins is not trivial and I encourage you […]


For the Beatles, happiness is a warm gun; for the geek, happiness is a warn iron solder. For me happiness is a warm message, some sort of kind feedback from people that I managed to help in a way or an other. I am so pleased to have – modestly – contributed to the Quasar 2.0. […]