Georges Méliès

Jovan Stosic May 24, 2021
Méliès” redirects here. For Georges’ brother, see Gaston Méliès. For the village in Greece, see Milies.

Marie-Georges-Jean Méliès (/meɪˈljɛs/; French: [meljɛs]; 8 December 1861 – 21 January 1938), was a French illusionist, actor, and film director who led many technical and narrative developments in the earliest days of cinema.

Méliès was well known for the use of special effects, popularizing such techniques as substitution splices, multiple exposures, time-lapse photography, dissolves, and hand-painted colour. He was also one of the first filmmakers to use storyboards.[2] His films include A Trip to the Moon (1902) and The Impossible Voyage (1904), both involving strange, surreal journeys somewhat in the style of Jules Verne, and are considered among the most important early science fiction films, though their approach is closer to fantasy.

https://en.wikipedia.org/wiki/Georges_M%C3%A9li%C3%A8s

Joseph Johann von Littrow

Jovan Stosic May 23, 2021

Joseph Johann von Littrow (13 March 1781, Horšovský Týn (German: Bischofteinitz) – 30 November 1840, Vienna) was an Austrian astronomer. In 1837, he was ennobled with the title Joseph Johann Edler von Littrow. He was the father of Karl Ludwig Edler von Littrow and the mentor of the mathematician Nikolai Brashman. His work took him to Russia for a time, which is where his son who succeeded him was born.

He became director of the Vienna Observatory in 1819. He served in this position until his death in 1840. He created the only conformal retroazimuthal map projection, which is known as the Littrow projection. Littrow authored the widely read Wunder des Himmels (“Miracles of the Sky”), which was reprinted eight times by 1897.

Von Littrow is often associated with a proposal to dig a large circular canal in the Sahara desert and fill it with burning kerosene, thus communicating the fact of human intelligence to aliens who may be observing earth. However, Von Littrow’s connection with this scheme may be apocryphal.

The crater Littrow on the Moon is named in his honor.

He is the great-great-great-grandfather of Roman Catholic Cardinal Christoph Schönborn.

https://en.wikipedia.org/wiki/Joseph_Johann_von_Littrow

Home Assistant Reverse Proxy with Apache

Jovan Stosic May 23, 2021

<VirtualHost *:443>

ServerName home.example.org

ProxyPreserveHost On

ProxyRequests off

ProxyPass /api/websocket ws://localhost:8123/api/websocket

ProxyPassReverse /api/websocket ws://localhost:8123/api/websocket

ProxyPass / http://localhost:8123/

ProxyPassReverse / http://localhost:8123/

RewriteEngine on

RewriteCond %{HTTP:Upgrade} =websocket [NC]

RewriteRule /(.*) ws://localhost:8123/$1 [P,L]

RewriteCond %{HTTP:Upgrade} !=websocket [NC] RewriteRule /(.*) http://localhost:8123/$1 [P,L]

</VirtualHost>

Source: Reverse Proxy with Apache – Community Guides – Home Assistant Community

MQTT Testing – Home Assistant

Jovan Stosic May 15, 2021

The mosquitto broker package ships commandline tools (often as *-clients package) to send and receive MQTT messages. As an alternative have a look at hbmqtt_pub and hbmqtt_sub which are provided by HBMQTT. For sending test messages to a broker running on localhost check the example below:

mosquitto_pub -h 127.0.0.1 -t home-assistant/switch/1/on -m "Switch is ON"
Bash

Another way to send MQTT messages manually is to use the “MQTT” Integration in the frontend. Choose the “Configuration” tab, click “Integrations” and click the “Configure” option under the “MQTT” integration. Enter something similar to the example below into the “topic” field under “Publish a packet*.

home-assistant/switch/1/power
Bash

and in the Payload field

ON
Bash

In the “Listen to a topic” field, type # to see everything, or “home-assistant/switch/#” to just follow the published topic. Press “Start Listening” and then press “Publish”. The result should appear similar to the text below

Message 23 received on home-assistant/switch/1/power/stat/POWER at 12:16 PM:
ON
QoS: 0 - Retain: false
Message 22 received on home-assistant/switch/1/power/stat/RESULT at 12:16 PM:
{
    "POWER": "ON"
}
QoS: 0 - Retain: false
Bash

For reading all messages sent on the topic home-assistant to a broker running on localhost:

mosquitto_sub -h 127.0.0.1 -v -t "home-assistant/#"
Bash

Source: MQTT Testing – Home Assistant

GitHub – zachowj/hass-node-red: Companion Component for node-red-contrib-home-assistant-websocket to help integrate Node-RED with Home Assistant Core

Jovan Stosic May 15, 2021

Installation

This integration is available in HACS (Home Assistant Community Store)

  1. Using the tool of choice open the directory (folder) for your HA configuration (where you find configuration.yaml).
  2. If you do not have a custom_components directory (folder) there, you need to create it.
  3. In the custom_components directory (folder) create a new folder called nodered.
  4. Download all the files from the custom_components/nodered/ directory (folder) in this repository.
  5. Place the files you downloaded in the new directory (folder) you created.
  6. Restart Home Assistant
  7. Refresh your browser window (bug in HA where it doesn’t update the integration list after a reboot)
  8. In the HA UI go to “Configuration” -> “Integrations” click “+” and search for “Node-RED Companion”

Using your HA configuration directory (folder) as a starting point you should now also have this:

custom_components/nodered/translations/en.json
custom_components/nodered/__init__.py
custom_components/nodered/binary_sensor.py
custom_components/nodered/config_flow.py
custom_components/nodered/const.py
custom_components/nodered/discovery.py
custom_components/nodered/manifest.json
custom_components/nodered/sensor.py
custom_components/nodered/services.yaml
custom_components/nodered/switch.py
custom_components/nodered/websocket.py

Source: GitHub – zachowj/hass-node-red: Companion Component for node-red-contrib-home-assistant-websocket to help integrate Node-RED with Home Assistant Core