and thus goes by another day


Calibrating the pH probe using the mV output of the pH Circuit

Introduction I use 4 Atlas Scientific pH Circuits (v 5.0) with a Multi Circuit Carrier Board to monitor de pH in 4 of my aquariums. The Atlas Scientific pH Circuit can be calibrated following a simple procedure described in the… Continue Reading →

Mirror folder to external USB disk

Let’s say that there’s a Folder A that you update regularly and you want it from time to time to copy the changes to an external USB hard disk. This is the command I use:

The rsync manual is:… Continue Reading →

Moving Linux to a smaller hard disk

When building my NAS I’ve picked a spare laptop hdd (spinny type) for the OS to boot from, but I’ve reached to a point where I wanted my NAS os to boot from a SDD. Copy data Since a stock… Continue Reading →

openssh-5.8p2 patch for Android (getpwuid replacement / placeholder)

I wanted to use rsync / ssh combination to do a backup of a phone that I don’t want to root. There were few problems: a) the rsync4android failed with an error that said: ‘ssh: exiting: string is too long’:… Continue Reading →

GScript / LLama and “Unmarshalling unknown type code 7077998 at offset 12”

I am using a combination of LLama and GScript so I can trigger a rsync backup whenever my phone connects to the home Wi-Fi. However, after a recent restore, GScript started crashing (whenever invoked from LLama) and the error message… Continue Reading →

VLC 3.X / Ubuntu 14.04 / saa7134 saga …

Ubuntu 14.04.2 LTS again messed up my tvtuner / VLC setup. After few recent updates, nothing worked anymore and the logs were useless. After rebuilding various VLC versions, activating debug logging (and assertions) and pouring through the logs, I was… Continue Reading →

PAS e-bike sensor – replacing broken magnet

All the troubles started once I asked a Local Bike Shop (LBS) to replace my Shimano Nexux 3 with the new Shimano Nexus 8. I assumed this will allow me to do a better tune to the battery life, by… Continue Reading →

Windows 8 – The Boot Configuration Data is missing some required information

I had to recover a Acer Aspire P3 tablet which, all of a sudden, it showed the message below:

Following few tutorials on the internet ended up as wasted time as any bcdedit commands returned: The requested system device… Continue Reading →

Finding the alsa recording device of the TV Tuner

From time to time, Ubuntu reorders the sound cards on my system, and I always have to find the recording device where the TV Tuner outputs the sound. This is to later use it in VLC on a line like:… Continue Reading →

GScript Android patch

I am using gscript from here: to run backup scripts and few issues bothered me: a) the output was cut to a very small length, thus, it didn’t fill the whole screen while executing. b) I wanted to have… Continue Reading →

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