About Scusi

Scusi · 2019-07-18

Hi there,I'm using a stm32f401re with stm32cubemx and keil uVision5. I'm trying to interface the mcu with the gsm module. I'm sure that the module works fine. I tested it with arduino and it worked without any issues. When I try to send any AT comman...

Scusi · 2019-07-25

The gpio and the UART are correctly initialized because I use cubemx to setup them. I checked the GPIO and UART registers and i don't see nothing in reception because DR is empty and the pin of UART is 0. Obviously, if I use putty the DR value change...

Scusi · 2019-07-24

I've some news. I used a serial adapter to comunicate directly with the gsm module and it works fine. I used putty with 9600 8N1 which are the same settings i use on stm32. What can i do now? I suspect that a possible problem is related to the TX vol...

Scusi · 2019-07-18

Thank for your fast reply.I'm sure about these points1) The module works fine. I tried it with an arduino one before the test with stm32;2) The pins are connected correctly on the board;3) I already use different buffers for RX e TX.If i use two usar...

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SIM800L doesn't respond to AT commands.

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