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This example serves a "hello world" on a WLAN and a SoftAP at the same time. The SoftAP allow you to configure WLAN parameters at run time. They are not setup in the sketch but saved on EEPROM. This is a captive portal because through the softAP it will redirect any http request to http://192.168.4.1/, served by the ESP8266 itself
28 lines
707 B
C++
28 lines
707 B
C++
/** Load WLAN credentials from EEPROM */
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void loadCredentials() {
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EEPROM.begin(512);
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EEPROM.get(0, ssid);
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EEPROM.get(0+sizeof(ssid), password);
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char ok[2+1];
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EEPROM.get(0+sizeof(ssid)+sizeof(password), ok);
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EEPROM.end();
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if (String(ok) != String("OK")) {
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ssid[0] = 0;
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password[0] = 0;
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}
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Serial.println("Recovered credentials:");
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Serial.println(ssid);
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Serial.println(strlen(password)>0?"********":"<no password>");
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}
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/** Store WLAN credentials to EEPROM */
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void saveCredentials() {
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EEPROM.begin(512);
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EEPROM.put(0, ssid);
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EEPROM.put(0+sizeof(ssid), password);
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char ok[2+1] = "OK";
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EEPROM.put(0+sizeof(ssid)+sizeof(password), ok);
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EEPROM.commit();
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EEPROM.end();
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}
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