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Category Archives for ESP8266

ESP8266 and Node-RED with MQTT (Publish and Subscribe)

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In this post we’re going to show you how to control ESP8266 outputs and display sensor data from the ESP8266 on Node-RED. The Node-RED software is running on a Raspberry Pi, and the communication between the ESP8266 and the Node-RED software is achieved with the MQTT communication protocol.

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Posting a Tweet with the ESP8266

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In this project you’re going to post a Tweet with an ESP8266. The goal of this project is to show the endless possibilities that this $4 WiFi module offers when integrates with a free platform that I’m about to show you.

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Door Status Monitor using the ESP8266

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In this project you’re going to monitor the status of a door using an ESP8266. The goal of this project is to show the endless possibilities that this $4 WiFi module offers when integrates with a free platform that I’m about to show you.

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ESP8266 Publishing DHT22 Readings to SQLite Database

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In this project you’ll create a standalone web server with a Raspberry Pi that displays temperature and humidity readings with a DHT22 sensor that are stored in an SQLite database. In order to create the web server you will be using a Python microframework called Flask. Here’s the high level overview of the system: Recommended […]

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ESP8266 Publishing DHT22 Readings with MQTT to Raspberry Pi

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In this project you’ll create a standalone web server with a Raspberry Pi that displays temperature and humidity readings with a DHT22 sensor. You can also control two outputs from an ESP8266 using MQTT protocol. In order to create the web server you will be using a Python microframework called Flask. Here’s the high level […]

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Raspberry Pi Publishing MQTT Messages to ESP8266

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In this project you’ll create a standalone web server with a Raspberry Pi that can toggle two LEDs from an ESP8266 using MQTT protocol. You can replace those LEDs with any output (like a relay that controls a lamp).

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What is MQTT and How It Works

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In this post, I’m going to introduce you to the MQTT protocol. MQTT stands for MQ Telemetry Transport. It is a nice lightweight publish and subscribe system where you can publish and receive messages as a client.

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Reprogram Sonoff Smart Switch with Web Server

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In this post, you’re going to learn how to flash custom firmware in the Sonoff device, so that you can control it with your own web server. I recommend that you read my previous post to get familiar with the Sonoff.

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How to Flash a Custom Firmware to Sonoff

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In this post, you’re going to learn how to flash custom firmware to the Sonoff device. I recommend that you read my previous post to get familiar with the Sonoff.

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Sonoff – $5 WiFi Wireless Smart Switch Introduction

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In this post, you’re going to learn how to control an outlet from anywhere in the world using the Sonoff device. The Sonoff is a device that you put in series with your power lines allowing you to turn any device on and off.

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ESP8266 0.96 inch OLED Display with Arduino IDE

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This post shows how to use the 0.96 inch OLED display with the ESP8266 using the Arduino IDE.

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$10 DIY WiFi RGB LED Mood Light with ESP8266 (Step by Step)

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In this project, I’ll show you how you can build your own mood light. You’ll use an ESP8266 to remotely control the color of your light using your smartphone or any other device that has a browser. This project is called $10 DIY WiFi RGB LED Mood Light.

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ESP8266 DHT11/DHT22 Temperature and Humidity Web Server with Arduino IDE

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In this project you’ll create a standalone web server with an ESP8266 that displays the temperature and humidity with a DHT11 or DHT22 sensor.

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ESP8266 RGB Color Picker

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In this project, you’re going to build a web server with an ESP8266 to remotely control an RGB LED. This project is called ESP8266 RGB Color Picker.

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