[Solved] NodeMCU 12E, Arduino 1.8.13 - No Response From Device Error

[pdogii]

Good day, I followed the instructions provided by the Amazon Vendor (see below) and successfully ran the BasicOTA sketch through the USB connection. I received an IP address, which I can see under Arduino-Tools-Port. When I select the port and then try to upload a blink sketch via wifi, I receive a " No response from device" error. When I use the USB connection it loads without any issues.

#include <ESP8266WiFi.h>         //provides ESP8266 specific Wi-Fi routines we are calling to connect to network.
#include <ESP8266mDNS.h>
#include <WiFiUdp.h>
#include <ArduinoOTA.h>  // OTA library

#ifndef STASSID
#define STASSID "xxxx"
#define STAPSK  "xxxx"
#endif

const char* ssid = STASSID; 
const char* password = STAPSK;

const int blink_led = D0;  // LED pin on NodeMCU ESP8266

void setup() {
  pinMode(blink_led,OUTPUT); 
  
  Serial.begin(115200);           //Set Baud Rate
  Serial.println("Booting");
                                                   // Step to connect ESP with the Wi-Fi
  WiFi.mode(WIFI_STA);               //Set ESP as station mode
  WiFi.begin(ssid, password);      //Wi-Fi Credentials

  while (WiFi.waitForConnectResult() != WL_CONNECTED)      //Connecting  ESP to wi-fi takes some time, so wait till it gets connected
{
    Serial.println("Connection Failed! Rebooting...");
    delay(1000);
    ESP.restart();
  }

  // Port defaults to 8266
  // ArduinoOTA.setPort(8266);

  // Hostname defaults to esp8266-[ChipID]
  // ArduinoOTA.setHostname("myesp8266");

  // No authentication by default
  // ArduinoOTA.setPassword("admin");

  // Password can be set with it's md5 value as well
  // MD5(admin) = 21232f297a57a5a743894a0e4a801fc3
  // ArduinoOTA.setPasswordHash("21232f297a57a5a743894a0e4a801fc3");

  ArduinoOTA.onStart([]() {
    String type;
    if (ArduinoOTA.getCommand() == U_FLASH) {
      type = "sketch";
    } else { // U_SPIFFS
      type = "filesystem";
    }

    // NOTE: if updating SPIFFS this would be the place to unmount SPIFFS using SPIFFS.end()
    Serial.println("Start updating " + type);
  });
  ArduinoOTA.onEnd([]() {
    Serial.println("\nEnd");
  });
  ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
    Serial.printf("Progress: %u%%\r", (progress / (total / 100)));
  });
  ArduinoOTA.onError([](ota_error_t error) {
    Serial.printf("Error[%u]: ", error);
    if (error == OTA_AUTH_ERROR) {
      Serial.println("Auth Failed");
    } else if (error == OTA_BEGIN_ERROR) {
      Serial.println("Begin Failed");
    } else if (error == OTA_CONNECT_ERROR) {
      Serial.println("Connect Failed");
    } else if (error == OTA_RECEIVE_ERROR) {
      Serial.println("Receive Failed");
    } else if (error == OTA_END_ERROR) {
      Serial.println("End Failed");
    }
  });
  ArduinoOTA.begin();          //OTA initialization 
  Serial.println("Ready");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());     // Display the IP address of the ESP on the serial monitor
}

void loop() {
  ArduinoOTA.handle();

 // code to blink led every 1 second
  digitalWrite(blink_led,HIGH);
  delay(1000);  
  digitalWrite(blink_led,LOW);
  delay(1000);
}

I'm missing key pieces to the configuration and OTA update puzzle. What's the next step required for me to do perform OTA updates to the NodeMCU?

Here are the vendor's instructions:

1. Download the Ar-duino IDE, the latest version.
2. Install the IDE
3. Set up your Ar-duino IDE as: Go to File->Preferences and copy the URL below to get the ESP board manager extensions: http://arduino.esp8266.com/stable/package_esp8266com_index.json Placing the http:// before the URL lets the Ar-duino IDE use it...otherwise it gives you a protocol error.
4. Go to Tools > Board > Board Manager> Type "esp8266" and download the Community esp8266 and install.
5. Set up your chip as:
   Tools -> Board -> NodeMCU 1.0 (ESP-12E Module)
   Tools -> Flash Size -> 4M (3M SPIFFS)
   Tools -> CPU Frequency -> 80 Mhz
   Tools -> Upload Speed -> 921600
   Tools-->Port--> (whatever it is)
6. Download and run the 32 bit flasher exe at Github(Search for nodemcu/nodemcu-flasher/tree/master/ at Github) nodemcu-flasher/Win32/Release at master · nodemcu/nodemcu-flasher · GitHub Or download and run the 64 bit flasher exe at: nodemcu-flasher/Win64/Release at master · nodemcu/nodemcu-flasher · GitHub
7. In Ar-duino IDE, look for the old fashioned Blink program. Load, compile and upload.
8. Go to FILE> EXAMPLES> ESP8266> BLINK, it will start blinking.

[pdogii]

Quick update - Windows10 firewall was blocking python...corrected, the blink sketch uploaded. I found the solution(s) by trying a variety of search terms in the forums and Google.