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I am working with a SIM808 module which combines GSM and GPS processing. Retrieving data from the module works by sending an AT command and awaiting the response. There is no continuous stream of data…
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Currently, the Pi Zero UART (3.3V) is routed straight to the GSM UART (2.8V). The SIM800 datasheet advises against this, but fixing it would require quite some additional parts, such as a buffer of so…
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I am sending text files over https manually using following method:
```
http.beginRequest()
..
http.post("url")
http.sendHeader("Content-Type", F("multipart/form-data; boundary=--=123456"));
htt…
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I have strange (or maybe not ) behavior modem SIM800L. Sometimes on boot ESP32 and first connection, sometimes when i already have connection few mins, i can not connect with sntp or mqtt broker. It's…
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Hi,
I am using Telit GSM Click and stucks at `GSM_Init()`. I tried some of the AT commands manually which are given at `GSM_init()`, then got this responses:
```
AT&F
OK
AT+CMEE=1
OK
AT
OK
…
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https://github.com/nimaltd/Sim800_V2/blob/5c76a909f7f69a1f3bea00b078e56c0fb0795abc/Sim80x.c#L734
Can you please provide a reference for that Regex?
I'm using Quectel which has exactly the same fo…
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Hello...
In #line39 of **SIM900.h** I changed **DEFAULT_INTERCHAR_TIMEOUT** to 5000 or 10000
but it still doesn't work...return is always false, even if SMS is not sent.
does anyone knows why?
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i use it in hardware Serial2.
```
HardwareSerial Serial2(2);
#define SerialAT Serial2
```
The example AT_Debug isn't wrok return.
```
rst:0x1 (POWERON_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
co…
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**HAL_GetTick()-Sim80x.UsartRxLastTime** check will fail after 49 days of MCU startup.
https://github.com/nimaltd/Sim800_V2/blob/5c76a909f7f69a1f3bea00b078e56c0fb0795abc/Sim80x.c#L1258-L1263
So…
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**I try to use manage NodeMcu by SMSs, Calls-DTMF - and respond by SMS - it's work fine!
I try to represent data by BLYNK - it's fine too!
But when i try to concatenate code - SMS, CALLS,BLYNK - Nod…