DS18B20 digital temperature probe lets you precisely measure temperatures in wet environments with a simple 1-Wire interface. The DS18B20 provides 9 to 12-bit (configurable) temperature readings over a 1-Wire interface, so that only one wire (and ground) needs to be…

The SHT45 is currently one of the most accurate temperature and humidity sensors available.It offers laboratory-grade precision, ultra-low power consumption, and very stable measurements. This guide shows you how to connect an ESP32 + SHT45 to Home Assistant using two…

Real-time energy monitoring is one of the most valuable additions to a smart home. The PZEM-004T module provides accurate measurements of: When combined with an ESP32, it offers a powerful, inexpensive way to send energy data directly into Home Assistant.…

The BME280 is one of the easiest sensors to integrate into Home Assistant for live temperature, humidity, and pressure monitoring. In this guide, we show you how to install the sensor, flash the ESP32, configure MQTT, and view the readings…

Send Sensor Data With Zero Assumptions • Exact Steps • Fully Reliable This guide shows exactly how to send readings (e.g., BME280 temperature/humidity/pressure) from your ESP32 to Home Assistant using MQTT. Everything is simple, direct, and tested. 1. What You…