Comments on: ESP32 Publish Data to Cloud without Wi-Fi (TTGO T-Call ESP32 SIM800L)

By: Vasant Rao

Vasant Rao — Sat, 17 May 2025 15:27:34 +0000

Hi,
This query is a little late but relevant. I am running a Traccar Server on on Odroid N2++ server. My ISP provides me a public IPv6 address and not a public IPv4 address. Can I get a IPv6 address with SIM800l so that it can send data to the Traccar server?
Thanks

By: mp3 juice

mp3 juice — Tue, 18 Jun 2024 06:45:20 +0000

Wow, just what I needed! I’ve been struggling to find an example of how to publish data to the cloud without Wi-Fi using ESP32 and SIM800L. Your tutorial is PERFECT! I finally got it working and it’s saving me from a lot of headaches. Thank you!

By: Dan Grasmick

Dan Grasmick — Thu, 16 May 2024 17:12:23 +0000

Hello!

Any suggestions or recommendations on updating this code for a T-SIM7670?

By: Hock soon

Hock soon — Thu, 18 Apr 2024 14:10:18 +0000

In reply to Richard. Hi Sir, can i use this code for DHT11 sensor to send data to googlesheet?

By: Jose

Jose — Sat, 16 Mar 2024 00:04:31 +0000

Hello! A few years ago I was using this project for my temperature sensors. I have reprogrammed my ESP32 but it gets stuck when connecting with the APN. I have checked that the SIM card works well and that there is 2G coverage. My country is Spain and 2G coverage continues to work. The error it returns is:

Initializing modem…
Connecting to APN: orangeworld fail

Thanks in advance

By: test

test — Tue, 27 Feb 2024 21:59:34 +0000

In reply to Lucky. Hi Mr , did you find any solution ?

By: Peter

Peter — Fri, 09 Feb 2024 11:05:33 +0000

Hello thanks for instruction,

I tried your manual , with TTGO T-Call ESP32 SIM800H ( not SIM800L) but I have still issue with my sim card. I added the sim card tracking code and show me that : SIM card status: 1“
I want to ask for advice, how to fix this issue ?

I check my sim card – working correctly, data are available, 2G signal is full, also tried another SIM card the same issue, tried another antena – the same issue, PIN code is disabled, APN je správny.

Can you give me some advice please?

By: Wj

Wj — Mon, 16 Oct 2023 05:01:06 +0000

In reply to Maxime. hi Maxime, i also faced the same issue here. works perfectly for 2 months then suddenly get an error 301 (301 Moved Permanently)

By: Wj

Wj — Thu, 12 Oct 2023 04:56:19 +0000

hi , the tutorial you provide is useful. but i face an issue which is after the project function well for a month, I get a block by the server and get error 400 . The error last for 3 weeks. Do you face the same issue with me and do u have any solution for this ?

By: Jó Sales

Jó Sales — Sat, 15 Jul 2023 17:08:47 +0000

In reply to MoZen. I had this error. It was resolved when I added "#define TINY_GSM_MODEM_SIM7000" before including the library "#include <TinyGsmClient.h>".