Comments on: ESP32 Web Server with MPU-6050 Accelerometer and Gyroscope (3D object representation)

By: Luke

Luke — Thu, 19 Jun 2025 12:00:00 +0000

Hi Sara.
All worked out of the box ..
Thanks.

One Q.would it be easy to show on the webserver “degrees instead of Rads” ?

All the best !

By: Sara Santos

Sara Santos — Fri, 14 Mar 2025 09:20:05 +0000

In reply to Farjad.

Did you upload the filesystem image?
You probably missed that step.
Regards,
Sara

By: Farjad

Farjad — Thu, 13 Mar 2025 14:41:06 +0000

In reply to Sara Santos. Hi Sarah everything seems to work greatly. But the ip address that the project generates, im not able to open it on my browser

By: Jaska Paska

Jaska Paska — Mon, 24 Feb 2025 17:50:03 +0000

Hello, I am using following code for ESP accelerometer webserver, but ESP32 DevKitC-p4 not even try to connect Wifi. In serial monitor there is not any information of Wifi. If any one can give some information how handle and connect the Wifi?

By: Inno Vaattori

Inno Vaattori — Wed, 19 Feb 2025 20:13:54 +0000

Hello,
Is there any idea why ESP is not running the Wifi code. Wifi is not starting and there is no any notification in the Serial Monitor? MPU6050 working normal but there is not any info what happening with the Wifi? I using ESP32-Woorm-32D DevkitC-V4.

By: Sara Santos

Sara Santos — Mon, 27 Jan 2025 18:46:50 +0000

In reply to Dylan Haines.

Hi.
Please see the solution for this issue here: https://rntlab.com/question/solvedassert-failed-tcp_alloc-idf-components-lwip-lwip-src-core-tcp-c1851-required-to-lock-tcpip-core-functionality/
Regards,
Sara

By: Sara Santos

Sara Santos — Tue, 07 Jan 2025 11:50:54 +0000

In reply to Dylan Haines.

Hi.
Try downgrading the ESP32 boards to version 3.0.7. (Tools > Boards > Boards Manager > ESP32 > downgrade to 3.0.7.)
There is currently an issue with boards 3.1.0 and web server examples.
Let me know if this makes any difference.
Regards,
Sara

By: Dylan Haines

Dylan Haines — Mon, 06 Jan 2025 02:53:34 +0000

Hi Sara,
When I reset the ESP it says this and the web server doesnt load:
entry 0x400805b8
E (361) esp_core_⸮f~mp_flash: Core dump data check failed:
Calculated checksum=’50a65a55′
Image checksum=’ffffffff’

Connecting to WiFi…….
192.168.0.18
E (4118) esp_littlefs: ./managed_components/joltwallet__littlefs/src/littlefs/lfs.c:1369:error: Corrupted dir pair at {0x0, 0x1}

E (4118) esp_littlefs: mount failed, (-84)
E (4122) esp_littlefs: Failed to initialize LittleFS
An error has occurred while mounting LittleFS
LittleFS mounted successfully
MPU6050 Found!

assert failed: tcp_alloc /IDF/components/lwip/lwip/src/core/tcp.c:1851 (Required to lock TCPIP core functionality!)

Backtrace: 0x4008249d:0x3ffb2000 0x4008ca9d:0x3ffb2020 0x40092e66:0x3ffb2040 0x400fa04f:0x3ffb2170 0x400fa1c9:0x3ffb2190 0x400d63c8:0x3ffb21b0 0x400de35e:0x3ffb2200 0x400d3209:0x3ffb2220 0x400e4813:0x3ffb2270 0x4008d81a:0x3ffb2290

ELF file SHA256: 9da739277

I have made sure that all of the required libraries are up to date, and honestly I don’t know what is going wrong. If you could help it would mean a lot.
Thanks,
Dylan

By: Sara Santos

Sara Santos — Fri, 27 Dec 2024 10:32:38 +0000

In reply to Anshuman Nitnaware.

Hi.
Probably wrong network credentials.
Or the ESP32 is far away form your router.
Regards,
Sara

By: Anshuman Nitnaware

Anshuman Nitnaware — Wed, 25 Dec 2024 12:32:40 +0000

Serial monitor showing
Connecting to WiFi ………………..
what’s the problem ??