ethaniel

1. Open Grafana dashboard settings.
2. Go to "Annotations"
3. Create an annotation with a data source "InfluxDB" and add the following query:

import "array"
import "timezone"
import "date"

option location = timezone.location(name: "Asia/Bangkok")

ethaniel

; Save this file somewhere (I keep it on my desktop) as min_teamviewer.ahk and run it once
; It will create a shortcut in the Startup folder, so it will be loaded automatically on system reboot


#SingleInstance Force

;LWin::
;RWin::

DetectHiddenText, on

ethaniel

Recently, I've been upgrading manually compiled Asterisk on my Centos to a version coming from Tucny's Repo. When starting up the Asterisk, I've noticed the following error:

asterisk: symbol lookup error: /lib/libasteriskssl.so.1: undefined symbol: ast_register_file_version

The problem came from leftover files from the manual build. Here is how I fixed this:

rm -rfv /lib/libasterisk*
rm -rfv /usr/lib/asterisk

ethaniel

1. Get RTSP video, decode it, apply framerate and send to shared buffer. Don't forget to set shm-size to something high, because you're now dealing with decoded raw video:

gst-launch-1.0 -v rtspsrc location="rtsp://192.168.86.249/live/sala" protocols=tcp latency=1000 ! watchdog timeout=10000 ! rtph264depay ! h264parse ! avdec_h264 ! videorate ! video/x-raw,framerate=30/1 ! shmsink wait-for-connection=false socket-path=/tmp/foo shm-size=100000000

2. Note the caps in the output:

/GstPipeline:pipeline0/GstShmSink:shmsink0.GstPad:sink: caps = video/x-raw, format=(string)I420, width=(int)2560, height=(int)1440, interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1, chroma-site=(string)mpeg2, colorimetry=(string)1:0:0:0, framerate=(fraction)30/1

3. Read decoded video from shared buffer (input the width,height,format,framerate caps from above):

ethaniel

<?php

// formulas courtesy of https://planetcalc.com/2167/

$pressure = 1000; // Pressure in hPa
$temperature = 25; // Temperature in Celsius
$humidity = 75; // Relative Humidity in %

$e = 2.71828;
$tp = ($pressure * 133.322)/100;

ethaniel

<?php

/*

Script to always have 1 deep scrub running per OSD.

## About

1. Helps with the following error: PG_NOT_DEEP_SCRUBBED HEALTH_WARN (N pgs not deep-scrubbed in time) 
2. Doesn't run scrubbing on PGs that were deep scrubbed less than 2 weeks ago, releasing

ethaniel

HOWTO: Receive SMS via 4G/LTE Huawei stick on Raspberry Pi 4 and forward them via Telegram

I live abroad and have only 1 sim card slot in my phone. It holds the SIM card of the country that I am in right now. But I also have another SIM card from my home country which receives my banking SMS codes. I can't afford to lose the "home" SIM card, so I decided to keep it in my house and forward the SMS messages to my main phone and computer via Telegram (just like Whatsapp, but so much better).

I also made a choice to use a 4G/LTE stick instead of 3G, because the 3G signal in my area is getting worse in worse due to operators upgrading their equipment.

Prerequisites

1. Raspberry Pi 4
2. Huawei E8372 (but can be any similar)

Step 1 - Get the Huawei card to work properly with Raspberry