#include "WiFiEsp.h" #include #define rxPin 3 #define txPin 2 SoftwareSerial esp01(txPin, rxPin); // SoftwareSerial NAME(TX, RX); const char ssid[] = "SK_WiFiGIGA40F7"; // your network SSID (name) const char pass[] = "1712037218"; // your network password int status = WL_IDLE_STATUS; // the Wifi radio's status const char ssid_AP[] = "esp01_AP"; // your network SSID (name) const char pass_AP[] = "1234test"; // your network password #define ledPin 13 #define digiPin 7 WiFiEspServer server(80); String stIp = "000.000.000.000"; String toStringIp(IPAddress ip) { String res = ""; for (int i = 0; i < 3; i++) { res += String((ip >> (8 * i)) & 0xFF) + "."; } res += String(((ip >> 8 * 3)) & 0xFF); return res; } void setup() { pinMode(ledPin, OUTPUT); pinMode(digiPin, OUTPUT); digitalWrite(ledPin, LOW); digitalWrite(digiPin, LOW); Serial.begin(9600); // initialize serial for debugging esp01.begin(9600); //와이파이 시리얼 WiFi.init(&esp01); // initialize ESP module while ( status != WL_CONNECTED) { // 약 10초동안 wifi 연결 시도 Serial.print(F("Attempting to connect to WPA SSID: ")); Serial.println(ssid); status = WiFi.begin(ssid, pass); // Connect to WPA/WPA2 network IPAddress ip = WiFi.localIP(); Serial.print("IP Address: "); stIp = toStringIp(ip); Serial.println(stIp); } // IPAddress localIp(192, 168, 111, 111); // softAP 접속 IP 설정 // WiFi.configAP(localIp); WiFi.beginAP(ssid_AP, 10, pass_AP, ENC_TYPE_WPA2_PSK, false); // 10:채널, false: softAP와 station 동시 사용모드 IPAddress ap = WiFi.localIP(); Serial.print("AP Address: "); Serial.println(ap); server.begin(); } const char HTTP_HEAD[] PROGMEM = "" "" ""; const char HTTP_STYLE[] PROGMEM = ""; const char HTTP_HEAD_END[] PROGMEM = "

" "

ESP01 Digital Pin Control

"; const char BUTTON_TYPE[] PROGMEM = "

" "

"; const char BUTTON_A_ON[] PROGMEM = "

Button A

"; const char BUTTON_A_OFF[] PROGMEM = "

Button A

"; const char BUTTON_B_ON[] PROGMEM = "

Button B

"; const char BUTTON_B_OFF[] PROGMEM = "

Button B

"; const char HTTP_END[] PROGMEM = "

"; bool button_a = LOW; // off bool button_b = LOW; // off void loop() { WiFiEspClient client = server.available(); // listen for incoming clients if (client) { // if you get a client, while (client.connected()) { // loop while the client's connected if (client.available()) { // if there's bytes to read from the client, String income_AP = client.readStringUntil('\n'); if (income_AP.indexOf(F("A/1")) != -1) { Serial.println(F("button_A on")); button_a = HIGH; digitalWrite(ledPin, button_a); } else if (income_AP.indexOf(F("A/0")) != -1) { Serial.println(F("button_A off")); button_a = LOW; digitalWrite(ledPin, button_a); } else if (income_AP.indexOf(F("B/1")) != -1) { Serial.println(F("button_B on")); button_b = HIGH; digitalWrite(digiPin, button_b); } else if (income_AP.indexOf(F("B/0")) != -1) { Serial.println(F("button_B off")); button_b = LOW; digitalWrite(digiPin, button_b); } client.flush(); client.println(F("HTTP/1.1 200 OK")); client.println(F("Content-type:text/html")); client.println(F("Connection: close")); client.println(); String page; page = (const __FlashStringHelper *)HTTP_HEAD; page += (const __FlashStringHelper *)HTTP_STYLE; page += (const __FlashStringHelper *)HTTP_HEAD_END; if (income_AP.indexOf(F("ip")) != -1) { if (status == WL_CONNECTED) { page += F("

IP Address: "); page += stIp; page += F("

"); } else page += F("

Connection failed

"); }else { page += (const __FlashStringHelper *)BUTTON_TYPE; if (button_a == HIGH) page += (const __FlashStringHelper *)BUTTON_A_ON; else page += (const __FlashStringHelper *)BUTTON_A_OFF; if (button_b == HIGH) page += (const __FlashStringHelper *)BUTTON_B_ON; else page += (const __FlashStringHelper *)BUTTON_B_OFF; } page += (const __FlashStringHelper *)HTTP_END; client.print(page); client.println(); delay(1); break; } } client.stop(); Serial.println(F("Client disconnected")); } }