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/* | |
* ESP8266 Web server with Web Socket to control an LED. | |
* | |
* The web server keeps all clients' LED status up to date and any client may | |
* turn the LED on or off. | |
* | |
* For example, clientA connects and turns the LED on. This changes the word | |
* "LED" on the web page to the color red. When clientB connects, the word | |
* "LED" will be red since the server knows the LED is on. When clientB turns | |
* the LED off, the word LED changes color to black on clientA and clientB web |