PROJECTS
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Using the HLK-LD2420 Sensor with an ESP32-C3 Supermini in ESPHome
If you’re trying to integrate the HLK-LD2420 24 GHz radar module into ESPHome on an ESP32-C3 board (specifically a “C3 Supermini” style dev board) and finding that ESPHome reports a firmware version of v0.0.0—or simply marks the component as “FAILED”—this guide should help you get it up and running. Common Symptoms of the Problem Root Causes…
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Building a Smart Ventilation System with Heat Recovery for Older Homes Using Home Assistant
Introduction In older homes with natural (gravity-based) ventilation systems, maintaining healthy indoor air quality can be challenging. High humidity, CO₂ levels, and VOCs (volatile organic compounds) can compromise comfort and health. This project transforms an existing system into a smart, automated ventilation system integrated with Home Assistant, ensuring balanced pressure, efficient heat recovery, and adaptive…
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Building a DIY Weather Station with Home Assistant
A DIY weather station is a fantastic project for smart home enthusiasts, combining sensors, microcontrollers, and Home Assistant for real-time weather data collection and automation. In this guide, we’ll walk you through how to build your own weather station, connect it to Home Assistant, and visualize the data. What You’ll Need Hardware: Software: Step 1:…
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3D Printing Filament Comparison: Choosing the Right Material for Your Project
3D printing has revolutionized the way we create prototypes, functional parts, and artistic models. However, choosing the right filament type is crucial for achieving the desired results. From strength to flexibility and temperature resistance, each material has its own unique characteristics. In this article, we’ll compare the most common 3D printing filaments to help you…
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Zigbee in Home Assistant: ZHA vs. Zigbee2MQTT – Which Integration Should You Choose?
Zigbee is one of the most popular wireless communication protocols for smart home devices, thanks to its low power consumption, long range, and robust mesh networking capabilities. In Home Assistant, two main options allow you to integrate Zigbee devices: Zigbee Home Automation (ZHA) and Zigbee2MQTT. But which one should you choose? Let’s break down the…
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ESP32 Model Comparison: Choosing the Right Development Board for Your Project
The ESP32 series by Espressif Systems is one of the most popular microcontrollers on the market, offering integrated Wi-Fi and Bluetooth capabilities. Its versatility has led to the creation of multiple development boards and modules tailored for various projects, including IoT devices, smart homes, and automation systems. In this article, we’ll compare popular ESP32 models…
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ESP32-C3 Supermini-Based Smoke Detector with Environmental Monitoring
Introduction The ESP32-C3 Supermini offers a compact yet powerful platform for building smart devices. This project demonstrates a smoke detector with environmental monitoring capabilities using the BME280, MQ2, and CSS811 sensors. The device is not designed to replace conventional smoke detectors but aims to provide an early warning system for smoke and poor air quality…