Comments on: Visualize Your Sensor Readings from Anywhere in the World (ESP32/ESP8266 + MySQL + PHP) https://randomnerdtutorials.com/visualize-esp32-esp8266-sensor-readings-from-anywhere/ Learn ESP8266, ESP32, Arduino, and Raspberry Pi Thu, 26 Mar 2026 12:29:14 +0000 hourly 1 https://wordpress.org/?v=6.8.5 By: Sara Santos https://randomnerdtutorials.com/visualize-esp32-esp8266-sensor-readings-from-anywhere/#comment-1172950 Thu, 26 Mar 2026 12:29:14 +0000 https://randomnerdtutorials.com/?p=88071#comment-1172950 In reply to Pierpaolo.

But are you trying to run both at the same time?

]]> By: Sara Santos https://randomnerdtutorials.com/visualize-esp32-esp8266-sensor-readings-from-anywhere/#comment-1172945 Thu, 26 Mar 2026 12:17:53 +0000 https://randomnerdtutorials.com/?p=88071#comment-1172945 In reply to Pierpaolo.

Hi.
The 403 error is usually related to access permissions.
I recommend contacting Bluehost support.
Regards,
Sara

]]> By: Pierpaolo https://randomnerdtutorials.com/visualize-esp32-esp8266-sensor-readings-from-anywhere/#comment-1172603 Wed, 25 Mar 2026 12:55:36 +0000 https://randomnerdtutorials.com/?p=88071#comment-1172603 In reply to Pierpaolo.

In addition to the March 24th post, I’d like to add that the first version worked with an ESP32 WROOM and the current one (which gives error 493) works with an ESP32-C3. Could this be the cause?

]]> By: Pierpaolo https://randomnerdtutorials.com/visualize-esp32-esp8266-sensor-readings-from-anywhere/#comment-1172601 Wed, 25 Mar 2026 12:54:16 +0000 https://randomnerdtutorials.com/?p=88071#comment-1172601 In reply to Pierpaolo.

In aggiunta al post del 24 marzo aggiungo che la prima versione funzionava con un ESP32 WROOM e la attuale (che dà errore 493) funziona con un ESP32-C3. Può dipendere da questo?

]]> By: Pierpaolo https://randomnerdtutorials.com/visualize-esp32-esp8266-sensor-readings-from-anywhere/#comment-1171934 Tue, 24 Mar 2026 11:53:09 +0000 https://randomnerdtutorials.com/?p=88071#comment-1171934 Ciao, ho realizzato il vostro progetto (Visualize Your Sensor Readings from Anywhere in the World (ESP32/ESP8266 + MySQL + PHP) che ha funzionato molto bene fino a qualche mese fa (vedi post del 15 maggio 2025).
Improvvisamente non mi carica più i dati nel database (creato con Bluehost) e mi dà errore 403. Ho provato anche a cancellare le tabelle e ricrearle ma l’errore è rimasto.
Mi puoi aiutare? Grazie, ciao.
Hi, I created your project (Visualize Your Sensor Readings from Anywhere in the World (ESP32/ESP8266 + MySQL + PHP)), which worked very well until a few months ago (see post dated May 15, 2025).
Suddenly, it stopped loading data into the database (created with Bluehost) and gave me a 403 error. I also tried deleting the tables and recreating them, but the error persisted.
Can you help me? Thanks, bye.

]]> By: Ed https://randomnerdtutorials.com/visualize-esp32-esp8266-sensor-readings-from-anywhere/#comment-1166040 Tue, 03 Mar 2026 15:41:03 +0000 https://randomnerdtutorials.com/?p=88071#comment-1166040 The highcharts library can sometimes behave odd.
if you are developing code and suddenly a graph that displayed perfectly has disappeared, check your browser console for a “Highcharts undefined” error. If you expand that and it shows the number 429, then that means that Highcharts is a bit fedup with your calls and you need to wait a while before you can try again. You can also get the Highchart libraries from cloudflare and use those instead:
e.g. https://cdnjs.cloudflare.com/ajax/libs/highcharts/11.4.8/highcharts.js

]]> By: Sara Santos https://randomnerdtutorials.com/visualize-esp32-esp8266-sensor-readings-from-anywhere/#comment-1044542 Thu, 15 May 2025 09:20:02 +0000 https://randomnerdtutorials.com/?p=88071#comment-1044542 In reply to Pierpaolo.

That’s great.
Thanks for sharing your feedback.
Regards,
Sara

]]> By: Pierpaolo https://randomnerdtutorials.com/visualize-esp32-esp8266-sensor-readings-from-anywhere/#comment-1044533 Thu, 15 May 2025 08:48:16 +0000 https://randomnerdtutorials.com/?p=88071#comment-1044533 Ciao, ho realizzato il vostro progetto e funziona molto bene. Ho aperto un sito su Bluehost (sanpelagio.net) e ho una pagina dove posso vedere i dati meteo della mia campagna. Ora sto modificando il progetto per avere i dati da più stazioni meteo e leggerli separatamente. Uso un piccolo modem e il tutto è alimentato da una batteria 12 V con pannello solare. Ciao.

Hi, I made your project and it works very well. I opened a site on Bluehost (sanpelagio.net) and I have a page where I can see the weather data of my campaign. Now I am modifying the project to have the data from multiple weather stations and read them separately. I use a small modem and everything is powered by a 12V battery with solar panel. Bye

]]> By: Magesh https://randomnerdtutorials.com/visualize-esp32-esp8266-sensor-readings-from-anywhere/#comment-959667 Fri, 20 Sep 2024 03:57:52 +0000 https://randomnerdtutorials.com/?p=88071#comment-959667 Hello, a newbie to ESP32 world. does this exercise uses FreeRTOS anywhere within the libraries ? or is it just a firmware kind running on baremetal system ?

]]> By: Adeptus https://randomnerdtutorials.com/visualize-esp32-esp8266-sensor-readings-from-anywhere/#comment-915638 Thu, 16 May 2024 03:11:47 +0000 https://randomnerdtutorials.com/?p=88071#comment-915638 Hi! I need help with this tutorial. I’m using 000webhost for the website and database management. I was just wondering, what index file should I use or if I need to create my own? I noticed in the tutorial that no index file was made, and when I tried accessing the site I get to a page that says I need an index.php file. I’m totally new at this and any type of help regarding this is greatly appreciated. Thanks!

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