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khoih-prog / Blynk_Async_WM

Simple WiFiManager for Blynk and ESP8266/ESP32 (including ESP32-S2, ESP32-C3) with or without SSL, configuration data saved in either LittleFS, SPIFFS or EEPROM. This library, using AsyncWebServer instead of (ESP8266)WebServer, for configuring/auto(re)connecting ESP8266/ESP32 modules to best or available MultiWiFi APs and MultiBlynk servers at runtime. Enable adding dynamic custom parameters from sketch and input using the same Config Portal. Config Portal will be auto-adjusted to match the number of dynamic parameters. Optional default Credentials to be autoloaded into Config Portal to use or change instead of manually input. Static STA IP and DHCP Hostname as well as Config Portal AP channel, IP, SSID, Password can be configured. Multi or Double DetectDetector feature permits entering Config Portal as requested.
MIT License
20 stars 8 forks source link

On ESP01-S 1M Serial does not working #3

Closed balucio closed 3 years ago

balucio commented 3 years ago

Hi, currenly I testing your great library on an ESP-01S. I initialize the serial interface at begin of setup(), the I call the setupPortal function to configure the Blynk_Async_WM library with default parameters. After the setup the serial interface does not work anymore, i.e. Serial.print does not print anything. Please note that same code works perfectly on other ESP Boards as the Wemos D1 mini.

void setup() {
  Serial.begin(APP_SERIAL_SPEED);
   while (!Serial);
   Serial.println("Inizio Setup");

   setupPortal();

  // From here the Serial does not work
 ...
}

void setupPortal() {

  // Setup WLAN and Blynk
    Serial.println("Setup portal");

  String config_portal_pass(HOSTNAME);
  String config_portal_ssid(HOSTNAME);

  Blynk.setConfigPortal( config_portal_ssid, config_portal_pass);
  Blynk.setConfigPortalIP ( IPAddress ( CONFIG_PORTAL_IPADDRESS ) );
  Blynk.setConfigPortalChannel(0);
  Blynk.begin(Blynk.getBoardName().c_str()); // DHCP (router) device name
  WiFi.hostname(Blynk.getBoardName());
}

In order to have the serial working again I need to reset It using:

    delay(500);
    Serial.end();
    Serial.begin(APP_SERIAL_SPEED);
    // Now Serial.print works...
khoih-prog commented 3 years ago

Thanks for sharing your experience which definitely will help other users.

The library is designed for full-fledged ESP8266, not for this ESP01(S) and it's good that you can apply into it. Just taking some precaution as the Serial is possibly used to control external devices (relays, etc.)