| Electronics > Projects, Designs, and Technical Stuff |
| 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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