In this project, we’ll use the ESP8266 to connect an MQ-135 gas sensor to the Arduino IoT Cloud. This setup will enable you to detect air quality changes and potentially dangerous gas levels, which you can monitor from anywhere in real time through the Arduino Cloud.
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For this project, I am using an HC-SR04 ultrasonic sensor for opening a solenoid door lock. Basically, the ultrasonic sensor acts as a proximity detector. A solenoid lock triggers when an object blocks the sensor at a given distance. In addition, a web app can act as WiFi remote control …
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In this article, I will guide you to the steps on how to build a WiFi servo controller project using the WeMos D1 Mini ESP8266 breakout board.
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Flame sensors are found from the simplest gas stoves to huge industrial plants. There are different types of fire sensors — some cheap, some expensive. Yet they’re all built for one single purpose: detect fire. In this article, I will guide you on how to build a flame sensor with …
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This project demonstrates how to read data from the DHT22 temperature and humidity sensor and send that data to the web using an ESP8266 via MQTT.
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Project Overview This NodeMCU IoT project is a simple demonstration on how to send sensor data to the Internet. Powered by a NodeMCU ESP8266 microcontroller, this project is able to show temperature, humidity and atmospheric pressure to any MQTT subscriber.
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There is, in fact, a way to create a NodeMCU ESP8266 WiFi jammer although technically, this is a deauther and not really a jammer. A jammer sends out noise on the WiFi frequency spectrum (2.4 GHz) while the program in this tutorial sends packets that disrupt the normal functions of …
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