ESP32 Guides, Projects & Board Comparisons (2026)
Practical ESP32 tutorials, GPIO references, Home Assistant integrations and real-world projects.
Latest ESP32 News
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ESP32-H21 Announced: Low-Power Thread and Bluetooth LE SoC
Espressif has announced the ESP32-H21, a new low-power wireless SoC designed for Thread, Matter, Zigbee, and Bluetooth Low Energy devices. The company published the announcement on March 3, 2026, positioning the chip as an enhanced option for battery-sensitive IoT products. The main point of the ESP32-H21 is simple: it is an incremental update to the […]
ESP32 Boards & Pinouts
Home Assistant
Featured Guides
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M5Paper Color ESP32-S3 Dev Kit: Full-Color E-Ink Display
M5Stack has released the M5Paper Color ESP32S3 Dev Kit, a compact ESP32-S3 development board built around a 4-inch full-colour E…
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STMPE610 Resistive Touch Controller Explained
This example shows how to read touch coordinates from an STMPE610 resistive touch controller using I²C or SPI. The sketch…
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PCF8574 LED Control with ESP32 (I²C GPIO Expander)
This example shows how to control 8 LEDs using the PCF8574 I²C GPIO expander with an ESP32. The sketch cycles…
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Adafruit nRF8001 BLE Callback Echo Example
This example shows how to use the Adafruit nRF8001 Bluetooth Low Energy breakout in callback mode. The sketch starts advertising,…
Which ESP32 Board Should You Choose?
ESP32 Versions Explained
ESP32-S3 Boards Compared
ESP32-C6 Versions Compared
ESP32 & Home Assistant Guides
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ESP32 LD2410 mmWave Presence Sensor with Home Assistant
The LD2410 is one of the most useful sensors you can connect to an ESP32 for Home Assistant. It is…
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ESP32 AC Climate Controller for Home Assistant
An ESP32 AC climate controller is one of the best upgrades you can make to an ordinary infrared-controlled air conditioner.…
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ESP32 IR Receiver for Home Assistant: Learn Remote Codes with ESPHome
An ESP32 IR receiver is one of the simplest ways to learn remote control codes for Home Assistant. Instead of…
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Home Assistant Yellow: Expandable Smart Home Hub Explained
Home Assistant Yellow is the official expandable smart home hub designed for people who want more flexibility than Home Assistant…