How to Use PIR Sensor with NodeMCU ESP8266
A Passive Infrared (PIR) sensor is a popular sensor for detecting the presence of a person This is a type of proximity sensor although you may also call it a motion sensor This...
Arduino WiFi: Using ESP8266 with AT Commands
The ESP8266 has been a blessing to makers who need to connect their Arduino to the Internet on the cheap In fact, boards like the NodeMCU and WeMos which feature the ESP module...
Creating NodeMCU WiFi Access Point
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 ...
Web Server with NodeMCU WebSocket
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...
NodeMCU MQTT Tutorial
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...
NodeMCU Ajax: Dynamic Sensor Data on Web Page
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...
Log Data with NodeMCU and Google Sheets
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...
Display Sensor Data to NodeMCU Web Server
We set up a simple NodeMCU web server in our previous tutorial There we controlled an LED from a web page hosted by the NodeMCU ESP8266 board! This time, we'll be displaying data...
Creating a Simple NodeMCU Web Server
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...
Intro to NodeMCU and Arduino IDE
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...
