GSM SIM800L

General discussions and questions abound development of code with MicroPython that is not hardware specific.
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jadro
Posts: 25
Joined: Wed Apr 29, 2020 7:02 pm

GSM SIM800L

Post by jadro » Tue Aug 11, 2020 7:13 pm

Hi to all,

I have SIM800L module and D1 mini microcontroller with Micropython firmware...
Can those modules connect themselves and how? I would like to send SMS. I take SIM from my telecom provider...
Does anyone know good python script that works out of the box with those modules together? Some good links? I found couple of links but for ESP32 or Arduino or something other but I have those two modules and like to do this with micropython...
D1mini.jpeg
D1mini.jpeg (46.43 KiB) Viewed 5081 times
SIM800-L-V2-003.jpg
SIM800-L-V2-003.jpg (123.3 KiB) Viewed 5081 times
Thanx in advance,
Jadro

davef
Posts: 811
Joined: Thu Apr 30, 2020 1:03 am
Location: Christchurch, NZ

Re: GSM SIM800L

Post by davef » Tue Aug 11, 2020 7:34 pm

You do have 2G support still in your country?

What is a D1?

jadro
Posts: 25
Joined: Wed Apr 29, 2020 7:02 pm

Re: GSM SIM800L

Post by jadro » Tue Aug 11, 2020 7:42 pm

Yes I do have, 2G , 3G... and D1 mini is ESP8266 based microcontroller, Wemos D1 mini, it is on the picture I uploaded, It has Txd and Rxd pins

davef
Posts: 811
Joined: Thu Apr 30, 2020 1:03 am
Location: Christchurch, NZ

Re: GSM SIM800L

Post by davef » Wed Aug 12, 2020 1:33 am

Will you have 2G for the life of your project? Sorry about the D1, I should look closer. I spent several weeks trying to get a ESP-01S to talk to a HotSpot using AT commands. Where are you going to send your data to?

jadro
Posts: 25
Joined: Wed Apr 29, 2020 7:02 pm

Re: GSM SIM800L

Post by jadro » Wed Aug 12, 2020 2:25 pm

Hi, I thing that 2G is neccessary just for internet (wifi) and my SIM800L will used as a SMS. Do you think that SMS is not in corellation with 2G?

davef
Posts: 811
Joined: Thu Apr 30, 2020 1:03 am
Location: Christchurch, NZ

Re: GSM SIM800L

Post by davef » Wed Aug 12, 2020 6:30 pm

https://en.wikipedia.org/wiki/2G says that 2G supports SMS.

ESP32 SIM800L Publish Data to Cloud wit ... Tutorials might be helpful. I bought one of these only to find out that GSM did not mean it would support 3G.

Good luck.

jadro
Posts: 25
Joined: Wed Apr 29, 2020 7:02 pm

Re: GSM SIM800L

Post by jadro » Wed Aug 12, 2020 8:43 pm

Thanx

jadro
Posts: 25
Joined: Wed Apr 29, 2020 7:02 pm

Re: GSM SIM800L

Post by jadro » Sat Jun 12, 2021 11:00 am

At last I found and buy this module TTGO T-Call ESP32 with SIM800L GPRS Module-Presolder Header and works great with MicroPython firmware and code. It calls, send SMS... As a charm
Attachments
ttgo.PNG
ttgo.PNG (207.92 KiB) Viewed 4132 times

erkman
Posts: 4
Joined: Sun Sep 05, 2021 5:22 am

Re: GSM SIM800L

Post by erkman » Fri Sep 17, 2021 9:53 pm

jadro wrote:
Sat Jun 12, 2021 11:00 am
At last I found and buy this module TTGO T-Call ESP32 with SIM800L GPRS Module-Presolder Header and works great with MicroPython firmware and code. It calls, send SMS... As a charm
Hi Jadro,
I've got also this, how did you get it to work? Do you have any scripts for this? If I could ask you for your help, because I'm new to microcontrollers, and this is my first project. I've got the V 1.3 the similpier one.

Thanks,
Janos

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