Failed to send to browser: /data/MJPEG2SD.htm

[francwalter]

Hello
I found this great project and tried to send it to my ESP32-Cam (a D0WD-V3 with 4 MB Flash, serial combined directly) with a USB-cable directly from my Windows 11 computer and Arduino IDE 2.3.6 but after connecting my phone to the ESP's AP (192.168.4.1) I get:

Failed to send to browser: /data/MJPEG2SD.htm, err ESP_ERR_HTTPD_RESP_SEND
Check log
Reboot ESP after fix

The log says:

ESP32-Cam log in Browser

00:00:00.525 logSetup] Setup RAM based log, size 7168, starting from 0


[00:00:00.525 logSetup] =============== ESP-CAM_MJPEG 10.8.2 ===============
[00:00:00.536 boardInfo] Chip ESP32-D0WD-V3, 2 cores @ 240Mhz, rev 3
[00:00:00.536 boardInfo] Flash 4.0MB, mode QIO @ 80Mhz
[00:00:00.546 boardInfo] PSRAM 4.0MB, mode QSPI @ 80Mhz
[00:00:00.547 logSetup] Compiled with arduino-esp32 v3.3.0
[00:00:00.557 printResetReason] Power on reset
[00:00:00.557 printWakeupReason] Wakeup by reset
[00:00:00.557 setup] Selected board CAMERA_MODEL_AI_THINKER
[00:00:00.613 infoSD] SD card type SDSC, Size: 968.8MB, using 1 bit mode @ 40MHz
[00:00:00.614 listFolder] Sketch size 1.6MB
[00:00:00.927 listFolder] File: /data/Auxil.htm, size: 46713 bytes
[00:00:00.930 listFolder] File: /data/common.js, size: 49333 bytes
[00:00:00.932 listFolder] File: /data/MJPEG2SD.htm, size: 101KB
[00:00:00.944 listFolder] File: /data/configs.txt, size: 8113 bytes
[00:00:01.099 listFolder] SD_MMC: 320KB used of 968.5MB
[00:00:01.100 loadConfig] Load config
[00:00:01.395 updateAppStatus] Enabling motion detection
[00:00:01.399 prepCam] Max frame size for 4.0MB PSRAM is UXGA
[00:00:01.667 prepCam] Camera model OV2640 ready @ 20MHz
[00:00:01.819 onNetEvent] Wifi Station started, connecting to:
[00:00:01.930 setWifiSTA] Wifi Station IP from DHCP
[00:00:04.338 WARN startWifi] SSID not connected not available, use AP
[00:00:04.426 onNetEvent] Wifi AP SSID: ESP-CAM_MJPEG_205269E81F84 started, use 'http://192.168.4.1/' to connect
[00:00:04.429 startWebServer] Starting web server on port: 80
[00:00:04.439 startWebServer] Remote server certificates not checked
[00:00:04.440 startSustainTasks] Started 1 sustain tasks
[00:00:04.470 updateAppStatus] Enabling motion detection
[00:00:04.574 prepRecording] To record new AVI, do one of:
[00:00:04.574 prepRecording] - press Start Recording on web page
[00:00:04.574 prepRecording] - move in front of camera

[00:00:04.585 checkMemory] Setup Free: heap 93084, block: 69620, min: 93068, pSRAM 2101452
[00:00:04.595 loop] =============== Total tasks: 16 ===============

[00:00:29.333 onNetEvent] WiFi AP client connection
[00:00:29.935 WARN sendChunks] Failed to send to browser: /data/MJPEG2SD.htm, err ESP_ERR_HTTPD_RESP_SEND

I found this discussion: #626 so I changed the microsd, I had a 1 GB (thats from the log) and I put a 16 GB, both empty, no change.

Another power cable and a stronger power supply didnt help neither.

I didn't write my WiFi AP and pwd into utils.cpp as there is now "Use the web interface to configure wifi settings" (it wasnt in the HowTo-Video).

I tried another ESP32-Cam (I bought two same devices) and its the same issue.

Can anybody give me a hint, what I am doing wrong?
Other ESP32-Cam projects are working e.g. the ESP32 example (CameraWebServer), so I doubt it is related to my board or camera.

Thanks. frank

[s60sc]

[00:00:29.935 WARN sendChunks] Failed to send to browser: [/data](tg://bot_command?command=data)[/MJPEG2SD](tg://bot_command?command=MJPEG2SD).htm, err ESP_ERR_HTTPD_RESP_SEND

the url has been corrupted by telegram

[francwalter]

In the log that was ok, I transferred it via Telegram from my phone to my PC, thats why that came I think, but I edited it already in the post as it was in my phone.

[francwalter]

Eventually I got it running by inserting just an empty 32 GB MicroSD. After flashing the project in Arduino IDE under 192.168.4.1 on my phone (with ESP32-Cam-AP) I got a simple form, where I could enter my WiFi AP and pwd and then in the serial log I could read:

17:45:32.088 -> [00:01:14.140 checkMemory] Setup Free: heap 89324, block: 65524, min: 89308, pSRAM 2101064
17:45:32.088 -> [00:01:14.151 loop] =============== Total tasks: 17 ===============
17:45:32.088 -> 
17:45:32.220 -> [00:01:14.309 resetWatchDog] WatchDog started for task: ping
17:45:32.260 -> [00:01:14.309 getLocalNTP] Using NTP server: pool.ntp.org
17:45:32.260 -> [00:01:14.309 WARN getLocalNTP] Not yet synced with NTP 
17:45:33.450 -> [00:01:15.538 wgetFile] Downloading /data/common.js from /s60sc/ESP32-CAM_MJPEG2SD/master/data/common.js
17:45:34.729 -> [00:01:16.791 wgetFile] Downloaded /data/common.js, size 49333 bytes
17:45:35.213 -> [00:01:17.271 wgetFile] Downloading /data/MJPEG2SD.htm from /s60sc/ESP32-CAM_MJPEG2SD/master/data/MJPEG2SD.htm
17:45:37.525 -> [15:45:36.126 wgetFile] Downloaded /data/MJPEG2SD.htm, size 101KB

So the trick was, not to use the /data from the repo, it was downloaded from github.
I dont understand why, though.

Now I have the GUI and my next issue was, that the streaming window was just white when I pressed the 'Start Stream' button, but after connecting it to a stronger power supply and restart (RST) now the camera is working :)
Thanks!

EDIT: I did the same with the other ESP32-Cam, put in the 1 GB sdcard (freshly formatted as FAT) without any /data on it and it was the same game, it worked as before, I got that Wifi setup form:

So I really wonder why that copy of the /data folder does not work on my devices.

[s60sc]

you're supposed to let the app download the files, not manually copy the folder.

[francwalter]

I followed the video, that's wrong then.

[s60sc]

I'll delete the link to the video in the next release, it's outdated now

[francwalter]

I made a comment under the video with that error message and a link to this post here.