Easy battery powered Mailbox Door IoT sensor using ESP32 3

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 ...

PHP backup monitoring and alert script: prevent backup rot… 3

PHP backup monitoring and alert script: prevent backup rot...
One of the key components with any IT software system is putting together an automated , reliable backup solution. Gone are the days of manually backing up files to a removable media, with our interconnected world we can simply setup some form of cloud back up and go. In a previous post I discussed how ...