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Easy-phi Project: Low Cost Dual Discriminators

In physics experiments, it is often required to detect any kinds of electrical signals. That's why we developed this module:

Univ input

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The Beast: Who Needs an OS Anyways?

In this article, I'll present you 'the beast': a cortex M4-based platform that has plenty of communication interfaces and to which you can connect a lot of different peripherals:

Beast with peripherals

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Easy-phi project: the template module

Next in our Easy-phi descriptions: the template module.


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Entering the CNC world with a probotix fireball

After having borrowed my work's CNC so many times, I figured it would be better if I bought one :-)

fireball V90

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Easy-phi project: the rack and its backplane

So I'm sure that after the previous post where I presented the easy-phi project, you'd like to see the actual hardware. So we're going to start with the rack:

Easyphi rack small

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Making the electronics for a $7 USD doppler motion sensor

I had no idea that you could find this kind of motion sensors on the internet for so cheap... But they come with a catch: you need to design some electronics for them.

PCB Back

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The easy-phi project: a new platform for experimenters

Hello everyone,
In this post, I will present a new open hardware project we are working on at my work....

Big rack

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The whistled: from whistle to sound recognition (and also some reminders for tinkerers out there)

Once again, here is a short video to show off a simple sound recognition algorithm implemented on the whistled:

As the platform could already do whistle recognition, I thought it would be nice to implement this nice feature...

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The whistled: how to remake a dozen years old project the right way

Hey guys :-)
As the slightly changed adage goes: a video is worth a thousand words:

Interested? Have a look at my tindie page or click below to get more technical details...

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Amplifying nanosecond pulses for quantum physics experiments

Have no fear... even if this project sounds complex, you'll easily learn in this article many things about high speed electronics and PCBs.
In fact, my goal here is to teach you some basics about all the new problems that arise when you're dealing with GHz signals :-) .

PCB with cabinet and heatsink

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Why you should never forget decoupling capacitors...

A few words to explain how forgetting one decoupling cap could affect the rest of your system...


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Atsam3u + SDCard + USB cdc/msd + fat32 with at91lib & Chan's fat code

Yep, for the first time this will be (mostly) a code article :-) .
But if one day you want to make a Hi-Speed (480Mbit/s) USB composite device with CDC (communication) and MSD (mass storage) classes, this is the post you'll want to read.

Platform PCB

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My new business card

As it seems to be a new trend out there, I thought I would give it a go :-)

Assembled business card

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Automatic Bill of Materials generation for Digikey components in an Excel file

If you are ordering your projects' components on digikey... this is the script you have been missing!

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Current controlled boost LED driver and black soldermasks

Ok I agree, the two are not connected :-) ...


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Indoor solar energy harvesting: 3 months data

3 months after having set the solar platforms in an indoor environment, I'm happy to show you here the extracted data :-)

3 months of logging data

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Introducing the toktoktok project

Hey guys! Here is the latest project I've been working on for one year now : toktoktok. And if you like it, I could really use your help :) .


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Indoor solar energy harvesting: the december numbers

After a rather cloudy month, I finally extracted the logged data from my 8 platforms. So let's see what we got here...

Logged data

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Indoor solar energy harvesting: a platform to (finally) get some numbers

Means to extract solar energy are not new, but I'm still not seing anything solar-powered in my everyday life... Why is that so ?
Moreover, when you're trying to get some numbers on how much solar energy you could expect to harvest in an indoor environment, well... you basically don't find anything either...
So, let's build a platform that can finally give some info about the possibility to use solar energy to power your projects :) !

Finished platform

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Having fun with a Teensy and an Acer Aspire One

Yes, this project was a lot of fun :-D .
As I had to disassemble my Acer Aspire One to replace its hard drive, I decided to do a couple of other modifications....


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