This project is a comprehensive temperature and humidity monitoring system that utilizes an Arduino-based setup with a DHT11 sensor, a NodeMCU ESP8266 for WiFi connectivity, and a Firebase Realtime ...

This Arduino code serves a dual purpose: monitoring temperature and humidity with a DHT11 sensor while incorporating a Forest Fire detection system. The data is transmitted to the ThingSpeak cloud ...

As shown in circuit diagram of a sensor node in Fig. 2, there are only five major components in the transmitter circuit: 1. Sensor DHT11 that has three interfacing pins: Vcc, Gnd, and Data Out. Vcc ...

The sensor has got its own proprietary 1-wire protocol to communicate with a host microcontroller. DHT11 sensor. The following timing diagram describes the protocol involved in the communication ...

In the loop function, we have created an event and using this event the temperature and humidity data is read from the DHT11 sensor. Then this value is printed to the serial monitor. The below GIF ...

The system, which is built on a Node MCU, makes use of buzzer, Thing speak, and gas sensors. It is intended to be used in conjunction with a DHT11 and MQ135 sensor as a monitoring and alert system for ...