Tag
A guide to set up automated IPv6 status monitoring on OpenWrt routers using hotplug scripts, MQTT, and Home Assistant for immediate outage notifications.
The author details how they decrypted Flume water monitor MQTT traffic by extracting a static 32-byte key from flash and using libhydrogen secretbox parameters, revealing that no session keys are involved despite noise key exchange code in firmware.
A software engineer documents how they automated their rental apartment's analog AC unit using an ESP32, stepper motor, and Home Assistant, turning 'dumb' knobs into smart controls via MQTT.