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ESP32 RTC Timer with DS3231 module

ESP32 RTC Timer with Firebase Cloud-Based Smart Relay

Build ESP32 RTC Timer with DS3231 & Firebase. Learn remote relay control, RTC scheduling, database setup, and web dashboard integration

  • Subhajit
  • October 10, 2026
ESP32 RTC Timer Relay | DS3231 Weekly Timer

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.

  • Subhajit
  • July 2, 2026
ESP32 Internal RTC Timer Control Relay

ESP32 Internal RTC Timer Control Relay

Make an ESP32 internal RTC timer control relay without any external RTC module. It uses NTP server to fetch the time. (Circuit + Code)

  • Subhajit
  • March 29, 2024

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Explore simple IoT Projects on Home Automation, Internet of Things using Arduino, ESP8266, ESP32, ESP32 CAM, LoRa for engineering students. All projects explained with source code, circuit diagram, woking principle.

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