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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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App::Info::Handler::Prompt(3pm) 			User Contributed Perl Documentation			   App::Info::Handler::Prompt(3pm)

NAME
App::Info::Handler::Prompt - Prompting App::Info event handler SYNOPSIS
use App::Info::Category::FooApp; use App::Info::Handler::Print; my $prompter = App::Info::Handler::Print->new; my $app = App::Info::Category::FooApp->new( on_unknown => $prompter ); # Or... my $app = App::Info::Category::FooApp->new( on_confirm => 'prompt' ); DESCRIPTION
App::Info::Handler::Prompt objects handle App::Info events by printing their messages to "STDOUT" and then accepting a new value from "STDIN". The new value is validated by any callback supplied by the App::Info concrete subclass that triggered the event. If the value is valid, App::Info::Handler::Prompt assigns the new value to the event request. If it isn't it prints the error message associated with the event request, and then prompts for the data again. Although designed with unknown and confirm events in mind, App::Info::Handler::Prompt handles info and error events as well. It will simply print info event messages to "STDOUT" and print error event messages to "STDERR". For more interesting info and error event handling, see App::Info::Handler::Print and App::Info::Handler::Carp. Upon loading, App::Info::Handler::Print registers itself with App::Info::Handler, setting up a single string, "prompt", that can be passed to an App::Info concrete subclass constructor. This string is a shortcut that tells App::Info how to create an App::Info::Handler::Print object for handling events. INTERFACE
Constructor new my $prompter = App::Info::Handler::Prompt->new; Constructs a new App::Info::Handler::Prompt object and returns it. No special arguments are required. BUGS
Please send bug reports to <bug-app-info@rt.cpan.org> or file them at <http://rt.cpan.org/NoAuth/Bugs.html?Dist=App-Info>. AUTHOR
David Wheeler <david@justatheory.com> SEE ALSO
App::Info documents the event handling interface. App::Info::Handler::Carp handles events by passing their messages Carp module functions. App::Info::Handler::Print handles events by printing their messages to a file handle. App::Info::Handler describes how to implement custom App::Info event handlers. COPYRIGHT AND LICENSE
Copyright (c) 2002-2008, David Wheeler. Some Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.10.1 2011-03-15 App::Info::Handler::Prompt(3pm)
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