Gained new skill: plumber

Few days ago we noticed that our kitchen sink is leaking. After investigation it was water line which needs replacing.

On Saturday I disassembled whole kitchen sink and checked which else parts would be nice to replace (washers, pipes etc). Wife decided that we will also change tap (kitchen retractable spout mixer type). Visit in local store gave me needed components and then fight started.

Took me 3 hours to finally mount everything in place without any leaks (but I had to disassemble it few times to fix mounts) but final result is nice — no water under sink and new shinny tap.

VoIP at home

Yesterday I received package with old device: T-Com Speedport W500V. It is ADSL modem with router, WiFi accesspoint and VoIP bridge functionality. Internally it is just standard set for such equipment: MIPS SoC from Broadcom, 16MB of RAM, 4MB of Flash storage.

After connecting it to my laptop I disabled most of functions (DSL, AP, DHCP/DNS/HTTP Proxy daemons etc) and tested VoIP calls (with Tlenofon as provider). It worked without any extra configuring — I think that this is due to BitSwitcher firmware which was installed instead of original one.

Today I disabled LAN port, configured WiFi to work as a client and moved W500V with analog wireless phone to shelf in corridor. What people see is just base for phone — rest is hidden in wall cupboard and operate over WiFi.


And this is how yet another Linux box got added to my collection… But this one got something to do on first day 😉

OEDEM 2009

This year OEDEM will take place in Cambridge, UK during second weekend of November (7-8th). People who wants to arrive there are requested to inform Phil Blundell by mail.

We did not decided on agenda yet but we are at gathering ideas now.

original mail

And if you want to join me I will fly from Berlin Schönefeld airport on Friday 6th November by Ryanair to London Stansted and then by train.

ELC Europe 2009

In October there will be Embedded Linux Conference Europe in Grenoble, France. And this year I will talk there.

It will be “Hacking with OpenEmbedded” presentation in which I plan to cover some non-standard uses of OpenEmbedded build system. Also I was invited to take part of ST-Ericsson workshop where I will present Poky Linux and Ã…ngström on ST Nomadik based NHK15 developer board.

If you want to meet me there I will arrive at Thursday evening and leave on Saturday’s morning. Traveling Szczecin -> Berlin -> Amsterdam -> Lyon -> Grenoble (same way back) will take most of those days…

NHK15 arrived

Some time ago Andrea Gallo from ST-Ericsson called me and proposed participation in their workshop during ELC Europe. It will be about NHK15 developer board which is based on STn8815 cpu (arm926 core + dsp). I will present Poky Linux and OpenEmbedded based environments on it.

Few days later board arrived at home in a big carton box filled with stuff.



As it is shown on picture above package contains everything needed to use board. From top-left:

  • tv out cable
  • board
  • debug board (serial + ethernet)
  • miniUSB cable
  • speakers + battery cable + wifi antenna
  • ribbon cables to connect debug board
  • PSU (5V)
  • UK/EU/US power plugs
  • headset
  • serial cable

By default board comes without operating system flashed. The only thing available is test picture which can be used to test does device works at all:


NHK15 offers many connectors:

  • audio in/out
  • SD/MMC slot
  • battery connector (cable included, battery not)
  • speakers (separated left/right — both are included)
  • WiFi antenna (board uses same chip as Nokia tablets)
  • FM antenna
  • TV out (cable included)
  • miniAB USB device/host port
  • camera (daughterboard with image sensor included)
  • debug board (which provides serial + Ethernet ports)
  • ETM/Nexus ports
  • SIM socket

There is 128MB of memory and 128MB NAND + 256MB OneNAND for storage. Connection with world can be done over serial, Ethernet, WiFi or Bluetooth. Screen has WVGA resolution and touchscreen attached.


Now I have Linux running on it but plan to switch to Poky Linux (supported) and OpenEmbedded based systems (Ångström for start) soon.