“This video demonstrates using an ESP8266-12E and an OLED display as a digital clock. While clocks may be ubiquitous these days, this project demonstrates some useful concepts that can be used in a variety of applications. The Arduino IDE is used to develop a sketch that access a NPT time server to accurately set the date and time. The date and time are then displayed on an OLED display and also via a web browser accessing the ESP8266 web server. The web page allows the setting of options like Time Zone, 24 hour clock, daylight savings and a variable to control the time server update interval. The web page uses AJAX to update the time without reloading the entire web page. There is also a brief overview of the source code sketch in the video.”
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