Espressif’s ESP32 microcontrollers come with a Flash encryption feature that when enabled ensures that the data and code stored on the (usually external) Flash chip is encrypted with AES-256 (ESP32) ...
Building sensors with ESP32 board is quite cost-effective ...
I retired the expensive commercial smart home hubs and rebuilt my smart home from scratch.
Online weather services are great for providing generic area forecasts, but they don’t provide hyperlocal data specific to your location. [Harald Kreuzer] needed both and built a Raspberry Pi Weather ...