It is a simple flutter app with bluetooth connectivity to send data to HC-05 Bluetooth module. I used shared preferences for small data storage such as time.

V3.0 - Using NodeMCU ESP8266 for controlling switches (Relay). Uses RTC (Real Time Clock - DS3231) and NTP (Network Time Protocol) for maintaining time. OLED Display (128x64) for instant updates. A webserver for Manual Controls. Vast application including Aquariums and IOT related.

No-code prop and control panel to command relays with Arduino Mega 2560 or STM32 Nucleo-144 or Raspberry Pi board.

Projeto utilizando um Arduino, para acender uma Lâmpada com sensores de distancia

Relay Module Library for Arduino.

This project allows users to control their switches remotely through cloud.

A simple Arduino project to work with Single & Dual Relay modules with ESP01 ESP8266 With Simple http page & ArduinoOTA support to upload code from Arduino IDE wirelessly - No need to remove from relay module to program it

MotorLock is an Arduino-based project that controls a DC motor using a keypad and LCD display. The motor will only work if the user enters the correct password.

Digispark Tiny85 and relay module as a time relay controller

Coupling the power of metal detection technology with the efficiency of a conveyor belt, this system enables seamless detection and removal of metal contaminants from material streams, ensuring product integrity and safety in industrial applications.

Config files for my GitHub profile. PROJECT DEMO LINK :- https://github.com/King-77/IOT-based-Home-Automation/blob/main/PROJECT%20DEMO.mp4

An Automated sanitize tunnel , with use of Ultrasonic sensor and relay modules and Arduino

IoT project with ESP8266 and Relay module