Complete ESP32 guide covering board families, restricted GPIOs, real power use, and a secure current ESPHome setup with API, OTA, and web_server.

Learn how to install unknown apps on Fire TV with Fire OS and why Vega OS models cannot run Android APKs. Includes Downloader and troubleshooting.

Reuse YAML with ESPHome substitutions, local and Git packages, secrets, encrypted API, current ESP32/ESP8266 examples and a complete download.

Connect an MH-RD rain sensor to ESP32 with safe 3.3 V wiring, current ESPHome YAML, calibration and Home Assistant dashboard cards.

Connect one or more DS18B20 sensors to an ESP8266 with the current 1-Wire bus, a 4.7 kΩ resistor, ESPHome and Home Assistant.

Measure distance with an HC-SR04 and ESP8266 using a safe Echo divider, current ESPHome YAML and native Home Assistant integration.

Configure a four-channel ESPHome relay module with suitable ESP32 GPIOs, low-voltage wiring, current YAML, Home Assistant, and safe startup tests.