wolfgang:
Hi Jimbo,
it’s just a HTML response, what I get back. Every character is plain ASCII when I try it using a telnet command. There are no special characters returned from my server. For me, it looks like, as if there is a problem with the serial data, which are sent back.
The server always responses with the same message. What I read back from the sim900 differs always. - The first 50 characters are correct, after them there is only garbage. I should solve this problem, because I want to order more from this boards for a project. But I’ve to get that working first!
Best regards
You may need to check your NewSoftSerial library, modify the buffer size of NewSoftSerial library.#define _NewSS_MAX_RX_BUFF 64 // RX buffer size