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compare wifi settings from config file with sdk config

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This commit is contained in:
Pascal Gollor 2015-09-28 16:49:19 +02:00
parent b13095763d
commit ec1c43b5f7
1 changed files with 50 additions and 27 deletions
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77
libraries/ESP8266mDNS/examples/OTA-mDNS-SPIFFS/OTA-mDNS-SPIFFS.ino
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@ -32,12 +32,6 @@ const char* ap_default_psk = "esp8266esp8266"; ///< Default PSK.
/// OTA Update UDP server handle.
WiFiUDP OTA;
/// Global WiFi SSID.
String g_ssid = "";
/// Global WiFi PSK.
String g_pass = "";
/**
* @brief Read WiFi connection information from file system.
@ -80,10 +74,6 @@ bool loadConfig(String *ssid, String *pass)
*ssid = content.substring(0, pos);
*pass = content.substring(pos + 2);
// Print SSID.
Serial.print("ssid: ");
Serial.println(*ssid);
return true;
} // loadConfig
@ -205,17 +195,23 @@ static inline void ota_handle(void)
*/
void setup()
{
g_ssid = "";
g_pass = "";
String station_ssid = "";
String station_psk = "";
Serial.begin(115200);
delay(100);
Serial.println("\r\n");
Serial.print("Chip ID: ");
Serial.print("Chip ID: 0x");
Serial.println(ESP.getChipId(), HEX);
// Set Hostname.
WiFi.hostname(HOSTNAME);
Serial.print("hostname: ");
Serial.println(WiFi.hostname());
// Initialize file system.
if (!SPIFFS.begin())
{
@ -224,44 +220,71 @@ void setup()
}
// Load wifi connection information.
if (! loadConfig(&g_ssid, &g_pass))
if (! loadConfig(&station_ssid, &station_psk))
{
g_ssid = "";
g_pass = "";
station_ssid = "";
station_psk = "";
Serial.println("No WiFi connection information available.");
}
// Set Hostname.
WiFi.hostname(HOSTNAME);
// Check WiFi connection
// ... check mode
if (WiFi.getMode() != WIFI_STA)
{
WiFi.mode(WIFI_STA);
delay(10);
}
// ... Load sdk config.
String ssid(WiFi.SSID());
String psk(WiFi.psk());
// ... Compare fiel config with sdk config.
if (ssid != station_ssid || psk != station_psk)
{
Serial.println("WiFi config changed.");
// ... Try to connect to WiFi station.
WiFi.begin(station_ssid.c_str(), station_psk.c_str());
// ... Pritn new SSID
Serial.print("new SSID: ");
Serial.println(WiFi.SSID());
// ... Uncomment this for debugging output.
//WiFi.printDiag(Serial);
}
else
{
// ... Begin with sdk config.
WiFi.begin();
}
Serial.println("Wait for WiFi connection.");
// Try to connect to WiFi AP.
WiFi.mode(WIFI_STA);
delay(10);
WiFi.begin(g_ssid.c_str(), g_pass.c_str());
// Give ESP 10 seconds to connect to ap.
// ... Give ESP 10 seconds to connect to station.
unsigned long startTime = millis();
while (WiFi.status() != WL_CONNECTED && millis() - startTime < 10000)
{
Serial.write('.');
//Serial.print(WiFi.status());
delay(500);
}
Serial.println();
// check connection
// Check connection
if(WiFi.status() == WL_CONNECTED)
{
// ... print IP Address
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
}
else
{
Serial.println("Can not connect. Go into AP mode.");
Serial.println("Can not connect to WiFi station. Go into AP mode.");
// Go into AP mode.
// Go into software AP mode.
WiFi.mode(WIFI_AP);
delay(10);