获取AT命令响应 [英] Get AT command response

问题描述

我使用一个Arduino欧诺与SIM900 GPS / GPRS模块，我使用AT命令，我怎样才能在命令（即OK，ERROR），这样我可以做一些事情如果响应==OK或响应==ERROR

I am using an Arduino Uno with a sim900 gps/gprs module and I'm using at commands, how can I get the response of at command (i.e OK, ERROR) so that I can do something if response == "OK" or response == "ERROR"

推荐答案

您可以只发出AT命令后，使用以下code读取SIM900 GSM模块响应。

You can use following code to read response from SIM900 GSM Module just after issuing AT command.

char response[200];
for(int i = 0 ; Serial.available() > 0 && i<200 ; i++) {
   response[i++] = Serial.read();
}

阅读响应，您可以使用的strstr（）函数来检查它是否是'的确定的'或'的错误'，如下给出：

After reading response you can use strstr() function to check whether it is 'OK' or 'ERROR', as given below:

if(strstr(responce, "OK"){
   /*Do your code to handle OK response*/
}
else if(strstr(responce, "ERROR"){
   /*Do your code to handle ERROR response*/
}
else {
   /* You got some other response*/
}

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