esp32
esp32
ESP32 + OLED Display: Display Weather from Home Assistant
Ever wanted a sleek, always-on display showing the current weather right from your Home Assistant dashboard? I did—and after some tinkering, I built one using an ESP32 and a tiny OLED screen. In this guide, I’ll walk you through the process, sharing pitfalls I encountered (like why my first attempt showed gibberish instead of temperatures) and how to avoid them. Why This Project? I love having ambient displays around my home that show useful info without needing to open an app.
Create an ESP32-Powered Smart Mailbox Notification System with Home Assistant
Ever missed an important piece of mail because you forgot to check your mailbox? I certainly have—more times than I’d like to admit. That’s why I built a smart mailbox notification system using an ESP32 and a simple tilt sensor. Now, I get instant alerts in Home Assistant whenever the mailbox door opens. No more guessing! In this guide, I’ll walk you through the entire process—from wiring the hardware to configuring ESPHome and setting up automations in Home Assistant.
Build a Smart Thermostat with ESP32, Home Assistant, and Relays
Ever wanted to ditch your clunky old thermostat for a DIY smart version that integrates seamlessly with Home Assistant? I did—and after a few weekends of tinkering (and a couple of fried relays), I built a reliable ESP32-based smart thermostat. Here’s how you can too. Why Build a DIY Smart Thermostat? Commercial smart thermostats are great, but they often come with limitations: proprietary ecosystems, cloud dependencies, or lack of customization. With an ESP32, a relay, and a temperature sensor, you can build a thermostat that’s:
Voice-Controlling Your Home with ESP32 and Home Assistant via Google Assistant
Ever wished you could turn off the lights without lifting a finger—or even getting out of bed? I certainly have, especially on those lazy Sunday mornings. That’s why I set out to integrate my ESP32-based smart devices with Home Assistant and Google Assistant, enabling voice control for my entire home. In this guide, I’ll walk you through the process step by step, sharing the pitfalls I encountered (and how to avoid them) along the way.
HomeAssistant Air Quality Monitoring: Why PMS5003 with ESP32 is the Best Combo for 2025
Ever wondered why your allergies act up indoors or why that mysterious “musty smell” lingers? I did—until I built my own air quality monitor using a PMS5003 sensor and ESP32. In 2025, with wildfires, pollen, and urban pollution on the rise, monitoring air quality isn’t just a luxury—it’s a necessity. Here’s why this combo is unbeatable and how to set it up with HomeAssistant. Why PMS5003 + ESP32? Accuracy: The PMS5003 laser particle sensor detects PM1.
DIY Smart Door Sensor with ESP32 and Home Assistant: A Step-by-Step Guide
DIY Smart Door Sensor with ESP32 and Home Assistant Ever walked out the door and wondered, Did I close it? I’ve been there too—until I built a DIY smart door sensor using an ESP32 and Home Assistant. Now, my phone buzzes if the door’s left ajar, and I’ve even set up automations to turn off the AC when the door’s open for too long (goodbye, wasted energy!). Here’s how you can build your own.
Control an IR Remote AC Using ESP32 and Home Assistant
Ever wished your dumb air conditioner could join your smart home party? I did—especially during a heatwave when I realized I’d left the AC on full blast while away. Enter the ESP32, a $5 microcontroller that (with some tinkering) can emulate your AC’s IR remote and integrate it into Home Assistant. Here’s how I did it. What You’ll Need Hardware: ESP32-DevKit board: Buy it here IR receiver/sender module VS1838B + IR LED: Buy it here Breadboard and jumper wires USB cable for power/flashing Software: Home Assistant (installed and running) ESPHome (via Home Assistant Add-on) Pro Tip: Test your IR LED before wiring—some have narrow angles.
Automate Your Garden Watering with ESP32 and Home Assistant
Automate Your Garden Watering with ESP32 and Home Assistant Ever forgotten to water your plants only to find them looking like they’ve been on a desert trek? I have—more times than I’d like to admit. That’s why I built a smart garden watering system using an ESP32, soil moisture sensors, and Home Assistant. Now, my plants get watered automatically, and I get to pretend I’ve got a green thumb. Here’s how you can do it too.
Esp32 + 1$ DHT22 temperature sensor
ESPHome is a powerful framework for building IoT devices using ESP8266, ESP32, and other microcontrollers. It allows you to easily configure and control your devices from a web interface. In this tutorial, we will learn how to connect the DHT22 sensor to the ESP32 board using ESPHome. Let’s get started. Step 1: Install ESPHome Before we begin, make sure you have installed ESPHome on your computer. Follow the instructions on the ESPHome website to install ESPHome.
Cheap 15$ Air quality monitor: ESP32, Bluetooth & Home assistant
If you are a DIY lover, the first sensors you look at are : temperature sensor and airquality sensor. #Metoo. I have started with the temperature sensor in this article and found that amazing. I decided to go try the airquality monitoring. I wanted something cheap, and ideally with bluetooth to connect it easily to my ESP32 and Home assistant, I found that Airbox WP6003 can do the job. Requirements: ESP32-DevKit board: Buy it here Airbox WP6003 Bluetooth: Buy it here Collecting information BLE devices normally has characteristics that can be access using an ID.