Getting start with Tobeca 2 – 3d printer

3d printer is a kit
3d printer is a kit

The Tobeca 2 is a French and Open Source 3dPrinter. THis printer is delivered in a kit (you can also ask to get it built for a higher price) The price of the printer is about 700€ + 100€ for the dual head option I chosen.

So I’ll publish some post in the next days to detail the installation. My time is really short these week, so it could be long before I finish it. By-the-way if you have one to build of you want to buy one, I hope these notes based on my experience will help you.

Finally, I spent about 16 hours to mount the printer and a couple more to get my first print!

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RFRPI shield V1.2 released for RPI B+

Raspberry Pi B+ - RFRPI Shield
Raspberry Pi B+ – RFRPI Shield

I’m proud to announced the Raspberry PI shield for high quality RF433 have just been released to be compatible with Raspberry Pi model B+ (and A+).

The shield works exactly the same with the RFRPI lib. It is a little bit mode compact and modified to fit the usual cases.

You can contact me for orders.

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Use node & javascript for web crawling

I recently have to crawl the web to get some data from a website, even if I’m more a Java addict and convinced that JavaScript is the 21 century basic, this language seemed to be the more efficient way to do this task.

I discovered for this purpose the use if crawler : a javascript library for node.js

This post details this experimentation.

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Telecom Device TD1205 – Sigfox – Test

TD1205 - sigfox
TD1205 – sigfox

The TD1205 device is more than the usual Telecom Design Sigfox embedded circuit as TD1204 and TD1208, they are a all in one chip providing GPS antenna and RF antenna. Ready to use, to be clear you just need to plug a battery to use it.

In my point of view, for many applications not requiring more than 2 GPIOs, this product is really easy and chip way to design a SigFox product. As it costs around 55$ and you just have to add box & battery id sounds like the most affordable for small quantities. But …

This post is detailing what is specific to this chip ; read more following the link

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SigFox arduino Raspberry PI hacking board

sigfox hack board
sigfox hack board

I assume you know a little bit who I am and what I’m doing, I’m not the one to by > 100€ to buy a one shot development board kit to test & hack a device like the Telecom Design chip. So basically I built my own with the objective to work with multiple configuration.

My “cahier des charges” was to make a board able to be installed as a dauther board on a raspberry PI,  able to support an arduino, able to run autonomously and being able to own a TD1204 as a TD1208.

It was a huge work to route it and I must recognize that it do not have all the GPIO connected as I expected but it exists, it works and it help me to build my first SigFox prototypes with success.

So, now, I propose to distribute this board to those of you looking for a such swiss knife.

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TD1204 – How to use GPS device for geolocalization with Sigfox

The TD1204 is the GPS & Accelerometer version of the sigfox Telecom Design chip. After a previous post about the use of the accelerometers (here) I’m describing how to use the GPS module.

The embedded GPS is based on a UBX G7020 chip. This chip will give you the date, time, longitude, latitude, altitude, speed and direction of the device when activated.

Read more for programming details

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