| Electronics > Projects, Designs, and Technical Stuff |
| SIM900 alternative |
| << < (4/4) |
| FreddieChopin:
Then maybe you could use USB-OTG host library and use LTE modem? They are very very fast. |
| hussamaldean:
--- Quote from: FreddieChopin on September 10, 2019, 08:13:14 pm ---Then maybe you could use USB-OTG host library and use LTE modem? They are very very fast. --- End quote --- could you please elaborate ? |
| mikerj:
--- Quote from: hussamaldean on September 10, 2019, 05:45:57 pm --- --- Quote from: mikerj on September 10, 2019, 05:15:46 pm ---I think you will be disappointed, GPRS is just slow with a maximum throughput of only 85.6 kbps for the SIM900 module. If you are running the USART at 115.2 kbs you shouldn't have a bottleneck. --- End quote --- I tried to send the command without any delay and the results are the SIM didn't even start the HTTP connection --- End quote --- That doesn't sound like it's the fault of the UART. Does your carrier even support GPRS, many do not? A 4G USB dingle is cheap and very fast, but driving it from a microcontroller is much harder and requires one with USB OTG. Could you maybe use something like a Raspberry Pi? |
| hussamaldean:
--- Quote from: mikerj on September 13, 2019, 07:10:14 am --- --- Quote from: hussamaldean on September 10, 2019, 05:45:57 pm --- --- Quote from: mikerj on September 10, 2019, 05:15:46 pm ---I think you will be disappointed, GPRS is just slow with a maximum throughput of only 85.6 kbps for the SIM900 module. If you are running the USART at 115.2 kbs you shouldn't have a bottleneck. --- End quote --- I tried to send the command without any delay and the results are the SIM didn't even start the HTTP connection --- End quote --- That doesn't sound like it's the fault of the UART. Does your carrier even support GPRS, many do not? A 4G USB dingle is cheap and very fast, but driving it from a microcontroller is much harder and requires one with USB OTG. Could you maybe use something like a Raspberry Pi? --- End quote --- great solution but we don't have 4G in Iraq ;D ;D ;D |
| Navigation |
| Message Index |
| Previous page |