Created
March 15, 2018 15:23
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Control LED with NodeMCU in the AP mode
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| /* | |
| * Sketch: ESP8266_LED_Control_02 | |
| * Control an LED from a web browser | |
| * Intended to be run on an ESP8266 | |
| * | |
| * connect to the ESP8266 AP then | |
| * use web broswer to go to 192.168.4.1 | |
| * | |
| */ | |
| #include <ESP8266WiFi.h> | |
| const char WiFiPassword[] = "12345678"; | |
| const char AP_NameChar[] = "LEDControl" ; | |
| WiFiServer server(80); | |
| String header = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n"; | |
| String html_1 = "<!DOCTYPE html><html><head><title>LED Control</title></head><body><div id='main'><h2>LED Control</h2>"; | |
| String html_2 = "<form id='F1' action='LEDON'><input class='button' type='submit' value='LED ON' ></form><br>"; | |
| String html_3 = "<form id='F2' action='LEDOFF'><input class='button' type='submit' value='LED OFF' ></form><br>"; | |
| String html_4 = "</div></body></html>"; | |
| String request = ""; | |
| int LED_Pin = D1; | |
| void setup() | |
| { | |
| pinMode(LED_Pin, OUTPUT); | |
| boolean conn = WiFi.softAP(AP_NameChar, WiFiPassword); | |
| server.begin(); | |
| } // void setup() | |
| void loop() | |
| { | |
| // Check if a client has connected | |
| WiFiClient client = server.available(); | |
| if (!client) { return; } | |
| // Read the first line of the request | |
| request = client.readStringUntil('\r'); | |
| if ( request.indexOf("LEDON") > 0 ) { digitalWrite(LED_Pin, HIGH); } | |
| else if ( request.indexOf("LEDOFF") > 0 ) { digitalWrite(LED_Pin, LOW); } | |
| client.flush(); | |
| client.print( header ); | |
| client.print( html_1 ); | |
| client.print( html_2 ); | |
| client.print( html_3 ); | |
| client.print( html_4); | |
| delay(5); | |
| // The client will actually be disconnected when the function returns and 'client' object is detroyed | |
| } // void loop() |
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