DIY Smart Home

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.

Build an educational MQ-3 alcohol-vapor detector with safe ESP8266 wiring, current ESPHome code and Home Assistant history. It is not a certified breathalyzer.

Set up an ESPHome Bluetooth Proxy to extend Home Assistant BLE coverage, with secure YAML, active connections, hardware advice, and troubleshooting.

Connect an MQ-2 sensor to an ESP32 with a safe voltage divider, current ESPHome YAML, and Home Assistant. This project is not a certified gas alarm.