ESP32 & ESPHome

Beginner-friendly From $5

The ESP32 is a small microcontroller that costs under $8 and connects to your WiFi. With ESPHome you can build your own sensors, switches, and displays - no programming required.

Why ESP32?

💰 Cheap

Boards cost $4-8. Sensors under $3.

🔧 Flexible

Hundreds of compatible sensors and modules.

🏠 Local

No cloud, no subscriptions, full control.

🎓 Educational

You learn as you go and get exactly what you need.

🚀 Start here

📘 Getting started Install ESPHome and flash your first ESP32

🔥 Popular projects

📡 LD2410 mmWave Presence Detect motionless people with radar

🌡️ Temperature sensor DHT22 temperature and humidity sensor

🚶 Motion sensor PIR sensor for motion detection

💡 LED strip control Addressable LED strip with ESPHome

Bluetooth Proxy Extend Home Assistant's BLE coverage over Wi-Fi, Ethernet, or PoE

📊 Project overview

Project	Difficulty	Time	Approx. price
LD2410 mmWave Presence	⭐⭐ Medium	45 min	$15-30
Temperature sensor	⭐ Easy	30 min	$10
Motion sensor	⭐ Easy	20 min	$10
LED strip	⭐⭐ Medium	45 min	$25
Bluetooth Proxy	⭐⭐ Medium	30 min	Depends on board

🛒 What do you need?

Recommended boards

Board	Price	Best for
ESP32-WROOM-32 DevKit	$5-8	Beginners
ESP32-C3 Super Mini	$4	Small projects
ESP32-S3	$8	Displays, camera
D1 Mini (ESP8266)	$4	Simple sensors