Arduino OTA Error Uploadin

Using Arduino Networking, Protocols, and Devices
1

I don't know if you can help me. I'm pulling my hair out how simple this seems and yet doesn't function. I have a ESP32WROOM devkit and I tried to use OTA by inserting into my sketch. Upload fails. I then upload the sample, only modifying the ssid and password fields. I then used a brand new ESP board. The OTA update fails after 5 periods (how it does .....____.....) with the super helpful error messsage "[ERROR] Error Uploading." and [how am I supposed to get a better dx of problem when it prints to serial port but I guess I could use a terminal program. Still it's just five categories of errors on that side.] I'd really like to update in situ becuase all the wires is confusing to my poor head.

2

Can you provide more details like the code and other things you used .Does the error have any exception error.

3

Here's a partial reply, the code as-is, thus i omitted it earlier. The terminal software cuts out whenever I upload. This won't help much either.

#include <WiFi.h>
#include <ESPmDNS.h>
#include <WiFiUdp.h>
#include <ArduinoOTA.h>

const char* ssid = "..........";
const char* password = "..........";

void setup() {
  Serial.begin(115200);
  Serial.println("Booting");
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  while (WiFi.waitForConnectResult() != WL_CONNECTED) {
    Serial.println("Connection Failed! Rebooting...");
    delay(5000);
    ESP.restart();
  }

  // Port defaults to 3232
  // ArduinoOTA.setPort(3232);

  // Hostname defaults to esp3232-[MAC]
  // ArduinoOTA.setHostname("myesp32");

  // 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);
    })
    .onEnd([]() {
      Serial.println("\nEnd");
    })
    .onProgress([](unsigned int progress, unsigned int total) {
      Serial.printf("Progress: %u%%\r", (progress / (total / 100)));
    })
    .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();

  Serial.println("Ready");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());
}

void loop() {
  ArduinoOTA.handle();
}
4

Oh and here is what the Arduinio terminal put out:

Sending invitation to 192.168.1.222 
Uploading.....
21:26:08 [ERROR]: Error Uploading
21:26:08 [ERROR]: Error Uploading
5

You can also check if your board is one of the "Verified ESP32 Boards Supporting OTA" at Over-The-Air (OTA)

6

And that works over a wired connection initially right.
after that you need to give the ESP32 a hard reset !
Then you select the port to the IP address (which you did, or at least i guess you did 192.168.1.222 is not a very common IP address to be assigned DHCP)

Eh yeah, well with OTA upload it doesn't do the waiting thing like that so now you have confused me a little.

So anyway, first shows us the exact board you have.

Upload the basic example to it. (over usb)

After upload, Hard reset the ESP !

show us the result in the Serial monitor after that reset.

Then switch port and try to upload again that same example.