Easy battery powered Mailbox Door IoT sensor using ESP32 5

Easy battery powered Mailbox Door IoT sensor using ESP32
This post is how I took my rusty (literally) old mailbox and made it into smart mailbox (an IoT device) , that sends you an SMS  (text messagE) or MQTT alert, and in the process  how I  learned about Arduino and particularly  the ESP32 chip which lets us relatively easily  setup with minimal costs and complexity ...

Running Mosquitto MQTT on Windows 10 super easy 6

Running Mosquitto MQTT on Windows 10 super easy
So I’ve been playing with all things Arduino , Raspberry Pi and IoT lately, when it comes to be able to easily link all these devices, the de facto standard is to use a MQTT  server and protocol  . Finding a  native Windows 10 version is complicated. In this post I’ll describe the super-easy steps to ...

Raspberry Pi Zero W LED stock ticker code and demo 3

Raspberry Pi Zero W LED stock ticker code and demo
So I was recently intrigued by Raspberry Pi Zero W, it’s small ARM-based Linux PC with integrated WiFi and ability to connect shields (known as Hats or pHats in Raspberry lingo) , got me thinking what kinds of interesting applications could I use it for. After coming across the Scroll Phat HD in my electronics ...

code for MySql | MariaDB to trigger / signal external script from database 3

code for MySql | MariaDB to trigger / signal external script from database
One feature I often wish MySQL / MariaDB (I’ll refer from now to just MariaDB referring to both) had was the ability to trigger or launch an  external script or open a socket connection to some external site; on a database event. Perhaps using a stored procedure in other words generate a signal /event to ...

WordPress linux backup script to offsite NAS via Rsync 3

WordPress linux backup script to offsite NAS via Rsync
Here’s a simple straightforward bash | shell script that I use for this SITE to easily and routinely backup my Entire  Wordpress Site , all its folders and plugins , and the corresponding database.   Of course there are dozens of WordPress Backup  plugins (such as Backup Buddy;  Updraft Plus; BackWpUp ) that do this ...

Lazarus – Discover Windows, Mac & Linux cross platform Development IDE 4

Lazarus - Discover Windows, Mac & Linux cross platform Development IDE
If you’re a developer of a certain age (say north of 35) you will likely have worked with or heard of Visual Basic and to a lesser known extent Delphi IDE (Integrated Development Environment) development platforms. These development IDE’s, were very popular in the mid to late 90’s and ushered in an era or rapid Windows applications ...

PHP 7 is here! 1

PHP 7 is here!
It looks like the latest edition of PHP has been released, PHP 7 , and it  brings a lot of new enhancements. Its biggest new capabilities are vast speed improvements, rumor has it that its on par with Facebook’s proprietary HHVM project (PHP JIT compiler). There’s a nice write up here over at Kinsta.com of PHP ...