DIY Electronics & ESPHome

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.

Is the Sonoff Zigbee Bridge Pro still a smart buy in 2026? Our deep-dive review covers Home Assistant integration, flashing for ZHA/Z2M, and top alternatives.

Is the UNI-T UT18C still worth it in 2026? Our in-depth review covers pros, cons, and a showdown vs. Fluke. Get the verdict from a pro electrician.

What the LILYGO T-Zigbee can really do, how its ESP32-C3 and TLSR8258 communicate, and what to plan before using it.

Add an ESPHome restart button and configure local automatic recovery without relying on an impossible automation while the node is offline.

Complete BME280 guide for measuring temperature, humidity, and pressure with Arduino, ESPHome, and Home Assistant.

Connect a BMP280 to ESP32 over I2C with safe wiring, current ESPHome YAML, troubleshooting, sea-level pressure and altitude calculations.