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Sunday 12 March 2017

Building the OSSW firmware with GCC

Few months ago, I got a Weloop Tommy smart-watch from work. I played with it a little bit, but quickly put it aside, until someone recently reminded me about this open source firmware called OSSW (the corresponding project page can be found here). I thought it would be a great sandbox to start playing with the watch, but building the FW was only possible using Keil and Windows...

For this reason, I set up a fork on my Github account that has been adapted to build on Linux (or Cygwin) using GCC. It can be found here.


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Wednesday 9 November 2016

Somfy and Blyss protocols added to rf-ctrl


The rf-ctrl tool is now able to control plugs and rolling shutter controllers from the well known Somfy and Blyss brands. Regarding Somfy, only the 433,42 MHz RTS protocol is supported, but devices based on it are still widely available. Of course, most 433 MHz transmitters work at 433,92 MHz, which is obviously off compared to the 433,42 MHz used by Somfy. However, it works well enough, even if the range is a little bit smaller compared to what you could get with a proper 433,42 MHz transmitter.

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Saturday 22 October 2016

Home automation with cheap 433MHz plugs, a 1$ 433MHz transmitter, and a TP-Link TL-WR703N router

Two years ago, I started playing around with cheap 433MHz plugs that can be found almost everywhere. At that time, I got several from different brands, from the well known Chacon Di-O plugs, to the most obscure chinese/no-name ones, and my goal was to reverse engineer as much protocols as possible. I compiled the result into a little tool I called rf-ctrl (now available on my GitHub), and forgot about it. However, this summer, I needed to find a solution to remotely control my electric heaters (not because I was cold obviously, but because I had the time to do it), and thought it was time to dig up rf-ctrl with a bit of polishing (a Web UI called Home-RF).


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Sunday 14 September 2014

Adding a fan to a Sanguinololu v1.3b

Few months ago, I completed the build of my RepRap Prusa i3, and decided in the process to add a fan to it.


There are several parts that can benefit from a fan, but since I'm exclusively printing PLA, I was mainly interested in cooling down the print itself. I easily found some nice fan mounts on Thingiverse, but I had some difficulties to find the fan connector of my Sanguinololu 1.3b. And for good reasons, since there is none. Well, not dedicated to a fan at least.

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Wednesday 10 September 2014

Enhanced Rovio (WowWee)

I played a little with the discontinued Rovio from WowWee this week, and found out that the firmware source code has been released some times ago.

Several custom firmwares already exist, but I played with only one so far : Rovio Chat custom firmware. This custom firmware integrates some interesting functionalities (mainly a Network Watchdog), but I wanted to add other features, like turning ON/OFF the blue LEDs.

That's why I just set up a Github repository, importing the original source code (v5.03) with Rovio Chat changes on top of it as a starting point.

So far, I also added the following functionalities :

  • Blue LEDs control integrated into the WEB interface
  • Incremental camera adjustment control (from Rovio Chat) integrated into the WEB interface

The repository can be found here, and some nice building instructions here.

Feel free to check it out !

Thursday 4 September 2014

Inside a KORG Kaossilator Pro

The Kaossilator Pro is a Dynamic Phrase Synthesizer/Loop recorder from KORG, and I just got mine this week !


However, the version I was able to find for a reasonable price is the Pro one, which is discontinued... It has been replaced by the Pro + version which looks almost the same, but offers 50 more programs.
I played a little with it, but soon I wondered if it was possible to upgrade it to the "+" version. After all, both version might share the same hardware (HW) ? It is quite possible since I do not see any real improvement that would justify a entirely new HW revision. Maybe a bigger ROM to fit the new programs ?

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Thursday 30 January 2014

First !

Well, this is my first post on this blog, and I hope others will soon follow...