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Top Forums Programming Wuhan Coronavirus Status App for China - Rapid Prototype using MQTT and the IoT OnOff IOS App Post 303043643 by Neo on Sunday 2nd of February 2020 10:25:57 PM
Old 02-02-2020
With a little bit of work, was able to build a nice "Wuhan Coronavirus Status" app using MQTT and the IoT-OnOff app. More on this technique here:

ESP32 (ESP-WROOM-32) as an MQTT Client Subscribed to Linux Server Load Average Messages

The result turned out nice, I think. I like the look and feel of this app considerably better than other apps I prototyped, and it is much more cost effective (free).

If anyone wants to build such an app like this, please just let me know (post back in this thread) and I will show you how to build this, step-by-step. If you want to you my MQTT server / service, I can make that happen for you as well.

So, in nutshell, you can have this "Wuhan Coronavirus" public service status app working for free, 100% and I assure you, 100% your usage data will be private and never shared with any third party, never under any circumstances. This is public app to help others, not to make money (as many companies seem to forget in times of crisis and look to profit from the misfortunes of others. Not here at unix.com! This app I created has one purpose - to help those who might need this information during a humanitarian crisis. This is how IT should really be used, to help others in times of need and crisis. If one person benefits, I am more than happy enough. I don't need money, fame or fortune from IT.


Wuhan Coronavirus Status App for China - Rapid Prototype using MQTT and the IoT OnOff IOS App-img_0463jpg


Reference to first prototype (retired):

Wuhan Coronavirus Status for China - Rapid Prototype Blynk App with ESP8266

For the next part of this project, I think I will build a Node-RED dashboard app for macOS. I installed Node-RED yesterday when searching for dashboard app, but I need to import the dashboard widgets and set it up to display a dashboard with MQTT data,
This User Gave Thanks to Neo For This Post:
 

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Libravatar::URL(3pm)					User Contributed Perl Documentation				      Libravatar::URL(3pm)

NAME
Libravatar::URL - Make URLs for Libravatars from an email address SYNOPSIS
use Libravatar::URL; my $url = libravatar_url( email => 'larry@example.org' ); DESCRIPTION
See <http://www.libravatar.org> for more information. Functions libravatar_url # By email my $url = libravatar_url( email => $email, %options ); # By OpenID my $url = libravatar_url( openid => $openid, %options ); Constructs a URL to fetch the Libravatar for the given $email address or $openid URL. %options are optional. "libravatar_url" will accept all the options of "gravatar_url" in Gravatar::URL except for "rating" and "border". The available options are... size Specifies the desired width and height of the avatar (they are square). Valid values are from 1 to 512 inclusive. Any size other than 80 may cause the original image to be downsampled using bicubic resampling before output. size => 40, # 40 x 40 image default The url to use if the user has no avatar. default => "http://www.example.org/nobody.jpg" Relative URLs will be relative to the base (ie. libravatar.org), not your web site. Libravatar defines special values that you may use as a default to produce dynamic default images. These are "identicon", "monsterid", "wavatar" and "retro". "404" will cause the URL to return an HTTP 404 "Not Found" error instead and "mm" will display the same "mystery man" image for everybody. See <http://www.libravatar.org/api> for more info. If omitted, Libravatar will serve up their default image, the orange butterfly. base This is the URL of the location of the Libravatar server you wish to grab avatars from. Defaults to <http://cdn.libravatar.org/avatar/> for HTTP and <https://seccdn.libravatar.org/avatar/> for HTTPS. short_keys If true, use short key names when constructing the URL. "s" instead of "size", "d" instead of "default" and so on. short_keys defaults to true. https If true, serve avatars over HTTPS instead of HTTP. You should select this option if your site is served over HTTPS to avoid browser warnings about the presence of insecure content. https defaults to false. LICENSE
Copyright 2011, Francois Marier <fmarier@gmail.com>. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://dev.perl.org/licenses/artistic.html SEE ALSO
<http://www.libravatar.org> - The Libravatar web site <http://www.libravatar.org/api> - The Libravatar API documentation perl v5.14.2 2012-04-04 Libravatar::URL(3pm)
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