ESP32 - IotCircuitHub

ESP32 RTC Timer Relay | DS3231 Weekly Timer + Web Dashboard (No WiFi)

Build an ESP32 RTC Timer Relay Switch with DS3231, OLED, and Web Dashboard. Works offline with weekly timer and mobile control.

Build an ESP32 Google Sheets Home Automation system using Apps Script. Control relays remotely, create a dashboard, and compare Firebase.

Build an ESP32-CAM WiFi Camera with Google Drive. Capture photos remotely, control flash, and create a FREE cloud camera step-by-step.

Build cloud-based ESP32 & ESP8266 Firebase Home Automation using Realtime Database & Free Hosting. Control multiple rooms with timers.

Google Sheets and Google Apps Script provide a very simple cloud backend for ESP32 IoT projects. Instead of using Firebase,…

Build an ESP32 indoor plant watering system with deep sleep & 12V battery. Automatic irrigation for vacation with smart moisture control.

Build ESP32 smart plant watering system with ESP RainMaker, automatic irrigation, soil moisture monitoring, and Google & Alexa control.

Build an ESP32 Fan Speed Control system using AC dimmer circuit with ESP RainMaker, Alexa, Google Home, IR remote, or manual switches.

How to make ESP32 PWM LED dimmer with voice control using Alexa. Also without the internet control the brightness with the potentiometer.

Build an IoT-based Plant Monitoring System using ESP32 and a Capacitive Soil Moisture Sensor. Explained the Circuit and Source codes.

IoT Home Automation using ESP32 Firebase Realtime Database with Web Dashboard and manual relay control via switches or buttons.

Control 4 relays via ESP-NOW with Web Interface, OLED feedback, and manual buttons. A compact, real-time ESP-NOW home automation project.