Streaming tonight

going to be streaming soldering work, tonight at 11pm CT.

Goal is to prep all the connectors. on the mixer switch project.

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Moving on.

I am moving on from my networking job. at $National_ISP.

If anyone needs a more senior Linux System admin/engineer in the austin area or remote. Reachout to me.

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working on upgrading from openwrt 7.09 to 18x 

H1 is serial its 3.3 vdc 

  • PIN 1 ground
  • PIN 2 RX
  • PIN 3 TX
  • PIN 4 VCC?
PIN headers are populated
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Streaming on Twitch

Hi everyone, I am going to be starting to work on electronics. 

Streaming Live! on twitch 

Link to my Discord . Join the server to meet other fellow Linux Users and Hardware modders/ Hackers.

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square wave power supply

Looking at the test setup

A view showing the DC to AC converter, with the test setup. (Bottom to Top of image) Fluke Scopemeter 115, Fluke 87 V, PEAK POWER 800W DC to AC supply. Plugged in to it is a “Extech AC Line Spitter”

I was looking in to my old 800W 120VAC DC to AC supply, to see just how bad the square wave is.

The test in my view was not complete. I did not load test the supply. To see how the wave forms was effected. Due to missing Nut assembly for the Positive lead.  I felt it would be unsafe due to insecure connection that could heat up due to possible arcing issues.

With the unit unloaded I proceeded to do a preliminary look at it with the 87 V,  a digital meter. The 87, read that it was 120.2VAC and 61.12Hz.

Fluke 87 IV displaying ACV

Fluke 87 V, showing 120.2 on the display

Fluke 87IV looking at hz

Fluke 87 V, showing 61.12Hz

With that I was curious what was going on with the waveform.

I hooked up the Scopemeter in to the mix. AC Neutral to  Ground reference  for the probe. The probe hooked in to the AC Hot on the line Splitter.

with that, I set the A input channel to 10:1  and took a look.

SCOPEMETER showing the stepped waveform

in mixed scope and meter view on the scopemeter

with that we see that it is going from +120V to 0 then -120V in reference to Neutral.

Screen grabs from the ScopeMeter

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AD replacement

So I am looking to move away from Windows 2012r2 to a Linux stack to admin my windows boxes. So far I found UCS by univention. Based off Samba 4 it looks promising.


More to come as I dig deeper.



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just a cool production photo

Louisiana Tech’s production of Dearly Departed

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Asterisk hold music

I was working on updating my hold music on my asterisk lines.

a quick method of doing this. Is as follows

First covert the audio to mono 8000 sample rate “wav” files

Then with sox installed

for f in *.wav; do echo $f ; sox $f -r 8000 -c 1 -s $f.sln -q ; done

rm -v *.wav


finally update the musiconhold.conf file with the directory of the processed files.

Thats it!

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I have been looking at my past.

So I have been digging in to my past, as I have been performing a migration of archive data. To new hard drives. any ways you can see some of my Lighting design work here .

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Learning Python

I have been studying Python, by reading Python Essentials by Steven Lott. It has shown me the basis of the language so far. Coming from a C background, I will be comparing data types to C data types.

The array data structures   like Tuples, where you can set a static fixed list. Like

static int myArray[3] = { 1,2,4,5 };

The list structures is very flexible similar to
int list[3];

the difference is in python you can add a element to the list without having a new object to move in to.

I find the Python language powerful, and it hides the nitty gritty.  You do not have to manage your own memory.

It will be fun to learn. One goal I have for this is to rewrite my LED sign software.

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