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SIM900 alternative
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hussamaldean:
Hi all,
I am currently working on a project that uses GSM-GPRS to communication to send certain data at certain rate. however, SIM900 is very slow and I have to delay the commands otherwise, it won't be able to keep up with the data stream required.
is there any GSM-GPRS module that supports SPI protocol ?
I think with SPI, I will be able to get better results due to fact that SPI is much faster at rate of 4MHz

regards
hussamaldean:

--- Quote from: blueskull on September 09, 2019, 02:58:30 am ---
--- Quote from: hussamaldean on September 09, 2019, 02:46:03 am ---Hi all,
I am currently working on a project that uses GSM-GPRS to communication to send certain data at certain rate. however, SIM900 is very slow and I have to delay the commands otherwise, it won't be able to keep up with the data stream required.
is there any GSM-GPRS module that supports SPI protocol ?
I think with SPI, I will be able to get better results due to fact that SPI is much faster at rate of 4MHz

regards

--- End quote ---

Do you think your data is being choked by UART/SPI/I2C, or by GPRS?

If you get crappy GPRS, no local communication bus can save you.

You need an LTE module. Consider SIM7000G.

--- End quote ---
the data is being chocked by UART not the communication between SIM900 and the server since I have to send just a string which contains only about 60 characters
hussamaldean:
any help ?
Marco:

--- Quote from: hussamaldean on September 09, 2019, 03:00:55 am ---the data is being chocked by UART not the communication between SIM900 and the server since I have to send just a string which contains only about 60 characters

--- End quote ---

So you don't really care how fast it goes to the server, but you absolutely want those 60 characters to get to the modem as fast as possible???? Why?
hussamaldean:

--- Quote from: Marco on September 10, 2019, 01:13:22 pm ---
--- Quote from: hussamaldean on September 09, 2019, 03:00:55 am ---the data is being chocked by UART not the communication between SIM900 and the server since I have to send just a string which contains only about 60 characters

--- End quote ---

So you don't really care how fast it goes to the server, but you absolutely want those 60 characters to get to the modem as fast as possible???? Why?

--- End quote ---
in case if the internet went down, I need to send thousands of those strings to the server as fast as possible
so, needing a faster  communication between SIM and ESP32 is a must at least I can send a certain data and don't have to wait for a response from the SIM module.
All I need just to tell me if the end server reports 200 or other case.
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