{{ARCH}} LED Control

#if defined(ARDUINO_ARCH_ESP8266) #include #include #elif defined(ARDUINO_ARCH_ESP32) #include #include #ifndef LED_BUILTIN #define LED_BUILTIN 2 // Adjust to the actual board #endif #endif #include "PageBuilder.h" #include "WebLED.h" // Only the LED lighting icon // Web page structure is described as follows. // It contains two tokens as {{STYLE}} and {{LEDIO}} also 'led' // parameter for GET method. static const char PROGMEM _PAGE_LED[] = R"rawliteral( {{ARCH}} LED Control

OFF

)rawliteral"; // A style description can be separated from the page structure. // It expands from {{STYLE}} caused by declaration of 'Button' PageElement. static const char PROGMEM _STYLE_BUTTON[] = R"rawliteral( body {-webkit-appearance:none;} p { font-family:'Arial',sans-serif; font-weight:bold; text-align:center; } .button { display:block; width:150px; margin:10px auto; padding:7px 13px; text-align:center; background:#668ad8; font-size:20px; color:#ffffff; white-space:nowrap; box-sizing:border-box; -webkit-box-sizing:border-box; -moz-box-sizing:border-box; } .button:active { font-weight:bold; vertical-align:top; padding:8px 13px 6px; } .one a {text-decoration:none;} .img {text-align:center;} )rawliteral"; // ONBOARD_LED is WiFi connection indicator. // LED_BUILTIN is controled by the web page. #define ONBOARD_LED 16 // Different pin assignment by each module // Get an architecture of compiled String getArch(PageArgument& args) { #if defined(ARDUINO_ARCH_ESP8266) return "ESP8266"; #elif defined(ARDUINO_ARCH_ESP32) return "ESP32"; #endif } // This function is the logic for LED_BUILTIN on/off. // It is called from the occurrence of the 'LEDIO' token by PageElement // 'Button' declaration as following code. String ledIO(PageArgument& args) { String ledImage = ""; // Blinks LED_BUILTIN according to value of the http request parameter 'led'. if (args.hasArg("led")) { if (args.arg("led") == "on") digitalWrite(LED_BUILTIN, LOW); else if (args.arg("led") == "off") digitalWrite(LED_BUILTIN, HIGH); } delay(10); // Feedback the lighting icon depending on actual port value which // indepent from the http request parameter. if (digitalRead(LED_BUILTIN) == LOW) ledImage = FPSTR(_PNG_LED); return ledImage; } // Page construction PageElement Button(_PAGE_LED, { {"STYLE", [](PageArgument& arg) { return String(FPSTR(_STYLE_BUTTON)); }}, {"ARCH", getArch }, {"LEDIO", ledIO } }); PageBuilder LEDPage("/", {Button}); #if defined(ARDUINO_ARCH_ESP8266) ESP8266WebServer Server; #elif defined(ARDUINO_ARCH_ESP32) WebServer Server; #endif const char* SSID = "********"; // Modify for your available WiFi AP const char* PSK = "********"; // Modify for your available WiFi AP const char* username = "admin"; const char* password = "espadmin"; #define BAUDRATE 115200 void setup() { delay(1000); // for stable the module. Serial.begin(BAUDRATE); pinMode(ONBOARD_LED, OUTPUT); digitalWrite(ONBOARD_LED, HIGH); pinMode(LED_BUILTIN, OUTPUT); digitalWrite(LED_BUILTIN, HIGH); WiFi.disconnect(); WiFi.mode(WIFI_STA); WiFi.begin(SSID, PSK); do { delay(500); } while (WiFi.waitForConnectResult() != WL_CONNECTED); Serial.println("Connected to " + String(SSID)); LEDPage.authentication(username, password, DIGEST_AUTH, "WebLED"); LEDPage.insert(Server); Server.begin(); Serial.print("Web server http://"); Serial.println(WiFi.localIP()); } void loop() { if (WiFi.status() == WL_CONNECTED) digitalWrite(ONBOARD_LED, LOW); else digitalWrite(ONBOARD_LED, HIGH); Server.handleClient(); }