Board Hub

Learn Espressif ESP8266 / NodeMCU

The ESP8266 packs WiFi connectivity into a tiny, affordable chip — perfect for home automation, sensor networks, and lightweight IoT builds.

Board Basics

Introduction, pinout, and protocols — all in one guide.

NodeMCU ESP8266 complete Pinout Guide: GPIO Numbers, D-Pins & Boot Pins Explained

Wiring sensors and modules, plus the library you need to talk to them.

Sensor Integration

Coming soon

Library & Setup

Coming soon

Water Level Monitor

🌿 AirWatch — Air Quality Monitoring System

Control an LED Over Wi-Fi Using NodeMCU ESP8266

More Espressif ESP8266 / NodeMCU guides worth reading.

ESP32-C6 Pinout Guide: GPIO, ADC, LP Core, and Matter-Ready Radios Explained

ESP32 MQTT Temperature Sensor: Send DHT22 Data to Home Assistant

MicroPython ESP32 Web Server: Control an LED or Relay from Your Browser

LoRa with ESP32 and Arduino Uno: SX1278 Wiring, Code and Range

ESP32 REST API Tutorial: Build a JSON API for Sensors and Relays

ESP32 + Home Assistant WiFi Smart Switch: Relay, Button & MQTT Discovery