Laur IVAN

SoundMachine Build Log 02

I’ve decided to put in a knob to control the volume directly on the box itself. It will be controlled by volumio itself via a plugin, much like the GPIO Buttons plugin. Since this is really a development kit approach, the hardware consists of: A KY-040 rotary encoder and A screw-based prototype board Both are relatively easy and cheap to find and buy. Rotary encoder The encoder is straight-forward cheap version, with a push button too, just in case. It’s even mounted on a PCB and has pins too, so…read more

Jun.15

SoundMachine
Build Log 01

Posted by laur in Hardware, Tutorial

A while ago I’ve decided to try my hand at replacing my Sonos system with a DIY version of a sound system. I have two reasons to do this: I think it’s going to be fun and I have a bunch of FLAC files at odd resolutions which are not really playable by the Sonos system. After giving it some thought, I’ve settled on the following configuration: A Raspberry Pi A sound card for the Raspberry Pi. For starters I’ll be going with a Chinese clone An amplifier A couple…read more

Apr.07

Set Up Concourse Behind a Proxy

Posted by laur in IT, Uncategorized

TL;DR: Most important thing is to find out if your proxy mangles/removes headers. If yes, then you need to contact your IT department. I’ve got the following error: Get https://registry-1.docker.io/v2: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers) Prerequisites In order to get Concourse CI working, you need to : Install VirtualBox and Install Vagrant in a directory without spaces (ruby bug) Now, you need to install the proxy plugin for Vagrant:

vagrant plugin install vagrant-proxyconf

1 2	vagrant plugin install vagrant-proxyconf

Then, initalise the install

vagrant init concourse/lite

1 2	vagrant init concourse/lite

Proxy configurations The vagrant proxy will allow you…read more

Jun.23

Ergodox – List of components

Posted by laur in Hardware

The list of components increased the price of the Dox quite a lot. The upside is that I still have a lot of solder wire, the multi-meter, the soldering gun and some switched left. Ergodox parts Ergodox – I got this off Massdrop without switches. I’m not sure I did myself a favour there, because switches took quite a lot of time to source. Switches – I got a bunch of Greens off Deskthority (search for 7bit) and a bunch of blue Gaterons off a taobao proxy. The Gaterons decision…read more

Nov.30

Split a Gradle Build File

Posted by laur in Software

TL;DR: If you can, use ext {} with constants (hash). You can do call pointer things too! In the past days I’ve been trying to add some functionality to my Gradle build file so the version would be determined from the git tag. I’ve found this excellent entry showing how to get the actual string. My code ended up being like this:

// versions.gradle

def getVersionName = { ->
    def stdout = new ByteArrayOutputStream()
    exec {
        commandLine 'git', 'describe', '--tags'
        standardOutput = stdout
    }
    return stdout.toString().trim()
}
def getVersionBaseName = { ->
    String result = getVersionName()
    String version = result.split('\\-')[0]
    if (!version)
        version = result
    return version
}

// versions.gradle

def getVersionName = { ->

def stdout = new ByteArrayOutputStream()

exec {

commandLine 'git', 'describe', '--tags'

standardOutput = stdout

}

return stdout.toString().trim()

}

def getVersionBaseName = { ->

String result = getVersionName()

String version = result.split('\\-')[0]

if (!version)

version = result

return version

}

Long build file The problem I have is that with every custom thing, the build file increases. Then, finding an error of a particular thing becomes more and…read more

SoundMachine Build Log 02

SoundMachineBuild Log 01

Set Up Concourse Behind a Proxy

Ergodox – List of components

Split a Gradle Build File

SoundMachine
Build Log 01