ESP8266 Tutorial

You can use WiFi with the NodeMCU (ESP8266) even without a WiFi router. All you need to do is create a NodeMCU WiFi Access Point and the device will now act as a WiFi gateway.

Uploading sensor data to web servers is one of the core ideas for Internet of Things (IoT). Such data are often small-sized and are continuously updated over time. And while HTTP performs satisfactorily for simple applications, like how I showed in my NodeMCU web server tutorial, there is a need …

So far, we've been using HTTP in our NodeMCU web servers and while it works, the protocol is not really the best way for sending and receiving small-sized data for IoT applications. In this tutorial, I will introduce you to NodeMCU MQTT.

Last time we managed to display sensor data to a NodeMCU web server. The problem with that code is that we need to refresh the page manually in order to update the sensor value. A better method is to use ajax (asynchronous javascript and xml) so that we can request …

Most of the time, the data from a sensor in an IoT application needs to be recorded. This data logging is important for later statistical analysis now most popularly known as data analytics. In this tutorial, we will record the data captured from the sensor to a spreadsheet. Let's build …

We setup a simple NodeMCU web server in our previous tutorial. There we controlled a LED from a web page hosted by the NodeMCU ESP8266 board! This time, we'll be displaying data from a sensor connected to the NodeMCU's analog pin.

We're done with basics of the NodeMCU in my last post. Now it's time to use the NodeMCU like how it's meant to be: an IoT device. Here I will show you how to create a simple NodeMCU web server which will control a LED attached to one of the NodeMCU's …

The NodeMCU is a development board featuring the popular ESP8266 WiFi chip. As it turns out, you can program the ESP8266 just like any other microcontroller. Its obvious advantage over the Arduino or PIC is that it can readily connect to the Internet via WiFi. However, the ESP8266 breakout board …

The Internet of Things (IoT) revolution has inspired thousands of makers to build interconnected systems that span the globe. Want to join the revolution? Learn first how to make a PIC16F877 Internet connection! This tutorial will cover using the PIC with the ESP8266 Wi-Fi module both in sending and receiving …