Plugin para Tampermonkey para hacer seguimiento de tus productos de Aliexpress en Correos de Chile

Como sabrán, el número de seguimiento que entrega Aliexpress para seguir los productos no es el mismo que requiere Correos de Chile.

Primero hay que destactar que este plugin que desarrollé es sólo compatible con los envíos con los que Correos de Chile tiene convenio (por lo general todos los que dan un plazo de entrega entre 20 y 31 días).

es el plazo de entrega del servicio contratado por el remitente. Si deseas un despacho en menor tiempo, debes solicitar que te envíen vía EMS, PPI Certificado o Encomienda Internacional. Saludos. — correoschile (@correoschile) March 7, 2018

La mayoría de los envíos tienen un plazo superior a los 30 días (entre 30 y 60, incluso hasta 90 dìas), los que corresponden a servicios básicos, los cuales NO poseen seguimiento en Chile, independiente de que Aliexpress indique un número de seguimiento.
respondimos recién un inbox tuyo de FB y los códigos indicados corresponden a un servicio básico, por lo cual no posee seguimiento en Chile y el plazo de entreg…

Issue with USB, Android does it not recognized and explorer freezes

I have this issue with my Xiaomi A1 with Android Oreo
If you try access to your USB OTG and when you plug it and click OK on this pop-up window:

Maybe your app will freeze and you couldn't access to your USB, like that

I tried with es explorer non-pro version and it got this info (the app freeze also):

To solve it, just choose Cancel instead of OK when you insert your USB. Wait until the USB starts to blink (around 25 seconds) and try to access to it again.
Enjoy it!

How to fix Android when developer options are not available for this user

I have an Android One with Oreo version and suddenly my Android rebooted and after that it started to behave strangely:

1) Notification section doesn't work. I can't see notifications from my apps and the arrow and the screw icon to settings access don't work.

2) As I can't access to the notification area, I can't enable Use USB to Transfer Files to access to my phone memory.

3) I can't access to developer mode (I before active it with a lot of taps over Build number). Clicking on developer options just shows developer options are not available to this user.

4) I can't update or install the apps on google play. They freeze on Download pending... message

5) Home and Switch buttons don't work. They light up and vibrate when I tap them but they do nothing.

This issue is apparently related to a deconfiguration of user accounts. To fix it, you need re-setup the users.
As you can't access to the user manager (you are in guest mode user), I read that you c…

How to run Helium Desktop on Linux

If you want backup your Android apps, the best application to do it is Helium.
To run it, you need execute an application on your Desktop

tar xzvf carbon-linux.tgz 
cd linux
./ .   

You will see this error:

error: device not found
adb server is out of date. killing... README adb daemon started successfully README adb
error: device not found

Or this:

CLASSPATH=/data/app/com.koushikdutta.backup-1/base.apk app_process /system/bin com.koushikdutta.shellproxy.ShellRunner2  &

hammerhead:/ $ ^[[24;80R

If you see, the bash script has an issue. To solve it, execute the following lines on your terminal:

pkg=$(adb shell pm path com.koushikdutta.backup) 
pkg=$(echo $pkg | cut -d : -f 2 | sed s/\\r//g)
echo $pkg 
adb shell << EOF
CLASSPATH=$pkg app_process /system/bin com.koushikdutta.shellproxy.ShellRunner2 $@ &

You will see this message:

adb server version (31) …

How to enable bluetooth connection in anyremote on Ubuntu 17.10

As you can see in , anyremote uses sdptool.
The issue is the following:

sdptool search --bdaddr local SP
Failed to connect to SDP server on FF:FF:FF:00:00:00: No such file or directory

To enable it on Ubuntu 17.10, you need enable compatibility mode in /etc/systemd/system/dbus-org.bluez.service file replacing:

ExecStart=/usr/lib/bluetooth/bluetoothd --compat

After that, you must restart bluetooth daemon with the following command:

sudo systemctl daemon-reload
sudo systemctl restart bluetooth

Now, change permissions and run sdptool again:

sudo chmod 777 /var/run/sdp     
sdptool search --bdaddr local SP
Searching for SP on FF:FF:FF:00:00:00 ...

Enjoy it!

How to connect a bluetooth speaker to your Raspberry Pi 3 without GUI

First, you need to download all necesary applications:

sudo apt-get update && sudo apt-get install bluez pulseaudio-module-bluetooth python-gobject python-gobject-2 bluez-tools udev

Now, add our user (pi) to the Pulse audio group so we the user can play audio through it.

sudo usermod –a –G lp pi

Now, we need enable A2DP in our bluetooth configuration file /etc/bluetooth/audio.conf the following sentences:


The next step is modify the Pulse daemon resampling method in /etc/pulse/daemon.conf
adding a new line after ;resample-method with the following info:

resample-method = trivial

To automate the bluetooth source to audio sink, we need to add a new configuration to udev init.d editing file /etc/udev/rules.d/99-input.rules and add this to the file:

SUBSYSTEM="input", GROUP="input", MODE="0660"

KERNEL=="input[0-9]*", RUN+="/usr/lib/udev/bluetooth"

Now, create a new folder where we going to run a …

How to stream rtsp videos or mp4 files throught python/flask + opencv

First, you need to download the code to generate your site with flask. To do this, you can use the following @miguelgrinberg project to stream your webcam or image files with flask.

git clone

In you need replace:

from camera import Camera
from camera_opencv import Camera

Now, you must edit your video source from
video_source = 0, means that you want to stream your webcam (/dev/video0)
You can edit it, by a file or a rstp url

If you replace 0 by 'video.mp4' you will probably get the following error:

Starting camera thread.
Exception in thread Thread-4:
Traceback (most recent call last):
File "/usr/lib/python3.5/", line 914, in _bootstrap_inner
File "/usr/lib/python3.5/", line 862, in run
self._target(*self._args, **self._kwargs)
File "/home/nboettcher/Downloads/rtsp/flask-video-streaming/", line 93, in _thread
for frame in frames_i…