Category Archives: ESP8266

Another ESP8266 internet clock using LED matrix panels

ESP8266 internet clock with LED matrix panel

Internet has made it easy for computers to synchronize their clocks to an accurate clock value generated by a remote server. We discussed earlier how to make ESP8266-based internet clocks that utilizes National Institute of Standards and Technology’s (NIST) NTS service to retrieve accurate time information and display it on a 4-digit seven segment LED display and on a TFT display. This article from Ayzenberg describes a similar ESP8266-based internet clock that displays time on a large 16×72 LED matrix panel. It also features APIs for displaying messages or setting the display brightness.

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ESP8266 LightBox lights up in rhythm with your music

ESP8266 music controlled lightbox

David-mccann made a fancy LightBox powered by an ESP8266 module and controlled via a smartphone app. It uses your phone’s or tablet’s built-in microphone to analyze the surrounding music and generates beautiful light patterns matching with the music. All you need to do is to start the app, place the phone near your music system and the LightBox will visualize the sound in real-time. It can also be used a colorful ambient light. Plug in your LightBox. It should turn blue and you should be able to see a WiFi network called “lightbox” on your phone or tablet. If the box turns red when you

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ESP8266 volumeter

ESP8266 smart volumeter

This ESP8266-based IoT volumeter measures the volume of an open space inside an enclosure using ultrasonic sensors. Three HC-SR04 ultrasonic transceivers are placed orthogonally to measure distances (width, height and lenght) along the three directions to compute the volume. The measurements are sent to the CloudMQTT server and displayed as graph.

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ESP8266 internet radio

ESP8266 radio station

Tom Tobback built an ESP8266 internet radio based off Edzelf’s excellent Esp-radio project. It uses NodeMCU ESP8266 board for connecting to various internet radio stations and the VS1053 module for decoding the mp3 stream. A TFT display is used in the project to show relevant information such as which radio station is being played. The firmware for ESP8266 is developed using Arduino IDE. The radio also features a built-in web server to allow the user to configure settings and add/modify favorite radio stations. The radio box has a volume control knob and 2 push buttons for channel up and down functions.

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