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Topic: Gprs / sim900 http post (Read 1 time) previous topic - next topic


I am new to using a GPRS module so I am still learning a lot of the basic things. I can get it to do an HTTP GET just fine but I was unsure how to approach the HTTP POST. How do I know how much I can put in the message body? Do I have to worry about the MTU or is that handled a layer down? I was planning on opening a file off the SD card and write it directly to the message body but I am unsure on the speed I should do this at, can I just make the baud rate really slow like 9600 bps? I am concerned with overwhelming the GPRS connections. I would like to write 1-5 KB in the message body, maybe even more like 1 MB if it goes really well. I know my server can accept up to 30MB on uploads.

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