embedded-linux on Purinda Gunasekara

Compiled binaries of Qt 5.3 for the Raspberry Pi (ARMv6) and Pi 2 (ARMv7-A)

Sun, 08 Feb 2015 09:22:33 +1100

At the time of writing Qt 5.4 release existed but I found it has number of bugs that affect multimedia capabilities of the Raspberry Pi.

Download the following binary release and install using following instructions. Instructions assume you still have the user pi in your Raspberry Pi system and make command installed as well (sudo apt-get install make). For the wget command, use the address found in “Download” link below the instructions.

Raspberry Pi WiFi configuration in Raspbian

Sat, 07 Feb 2015 00:49:20 +1100

I recently bought a Raspberry Pi2 and installed Raspbian (version 2015-01-31), it comes with WiFi drivers preinstalled for the Realtek module which I used as my Raspberry Pi WiFi dongle.

So I though things will go smoothly once I have the /etc/wpa_supplicant/wpa_supplicant.conf file configured. So what I did was setup it with my wireless network configuration, which looks like below ( I use WPA2-PSK, with CCMP authentication, if yours is different you may need to configure this right first, I used the wpa_gui command in Raspbian for the following config).

Installing LPCXpresso on Ubuntu 14.04 based distribution

Sat, 17 May 2014 14:59:31 +1000

I had to spend a lifetime trying to install LPCXpresso IDE built by NXP on Ubuntu 14.04, always came up with the following error message.

[14:52:45] purinda@purinda-ws[~/Downloads]+ ./Installer_LPCXpresso_7.1.1_125_Linux-x86
invalid command name "bind"
 while executing
"::unknown bind Text <Tab>"
 ("uplevel" body line 1)
 invoked from within
"uplevel 1 $next $args"
 (procedure "::obj::Unknown" line 3)
 invoked from within
"bind Text <Tab>"
 (procedure "::InstallJammer::InitializeGui" line 19)
 invoked from within
"::InstallJammer::InitializeGui "
 (procedure "::InstallJammer::InitInstall" line 68)
 invoked from within
"::InstallJammer::InitInstall"
 (file "/installkitvfs/main.tcl" line 38437)

The issue was that with multiarch built binaries shipped with Ubuntu, 32bit libraries cannot be installed via old library which I used in the past (ia32libs). As of Ubuntu 14.04 the 32bit packages can be installed by typing the same old “apt-get install <package>”, but with an extra suffix “:i386”.

Weekend Project: Pi Music Box – Raspberry Pi as a Music streaming device

Sun, 08 Dec 2013 18:58:37 +1100

Get Grooveshark to run on a Raspberry Pi, Let your friends connect to and vote for their favourite songs. Let the majority rule what you hear at home or office.

We used to play songs regularly at work. Most of the time I play Dubstep while rest of the team want to listen to Trance or a different genre, this is where the clash of genres occur. This is where this system would be useful, if you get this running on a network then you can ask people to search their favourite songs and queue them in the system. Based on the votes they/others make for the song, it may float up or down making it either famous or not-so-famous. This makes a playlist of highest voted or popular songs.