HM-10：也许有些AT命令没有实现？

Question

我正在开发一个PIC dsPIC33通过串口连接到HM-10设备的项目。 我发送给设备的AT命令，但似乎一些AT命令没有在HM-10固件中实现。 详细说明：

AT+RESET - > OK+RESET  : it works 
AT+RENEW -> OK+RENEW  : it works 
AT+NAME? -> OK+NAME:HMSoft : it works 
AT+VER? -> no answer  : it doesn't work 
AT+VERS -> no answer  : it doesn't work 
AT+NAMEaa -> no answer  : it doesn't work 

你有没有类似的问题？ 非常感谢您的帮助与合作 亲切的问候

Answer 1

看一看datasheet。没有AT+VER?或AT+VERS命令。他们是AT+VERR?和AT+VERS?。

我用HC-06做了一些测试，有些命令需要一个CR，有些则没有。也许这也是你的问题？

我用这个代码在一个Arduino草图来设置蓝牙设备名称为HC-06：

// Enter AT command mode 
if (enterATCommandMode() == true) 
{ 
    // Set the name. As we don't have an end-of-line mark, we need to wait until the 
    // timeout is reached and hope for the best. We also check whether the reply starts 
    // with "OK", so have at least some indication things worked. 
    hc06.print("AT+NAME" + userInput); 
    String reply = hc06.readString(); 
    if (reply.equals("")) 
    { 
     Serial.println(F("HC-06 didn't reply in time!")); 
    } 
    else 
    { 
     if (reply.length() < 2 || !reply.substring(0,2).equalsIgnoreCase(F("OK"))) 
     Serial.println("Unexpected answer ('" + reply + "') to AT+NAME command!"); 
     else 
     Serial.println(F("Name was set successfully.")); 
    } 
} 


bool enterATCommandMode() 
{ 
    // This buffer receives at most 2 characters as the reply (plus terminating \0) 
    char atReplyBuffer[] = { '\0', '\0', '\0' }; 

    // Send AT command and receive answer 
    hc06.print(F("AT")); 
    int bytesRead = hc06.readBytesUntil('\0', atReplyBuffer, 2); 
    String reply = String(atReplyBuffer); 

    // Timed out or answer wasn't OK? Error. 
    if (bytesRead != 2 || !reply.equalsIgnoreCase(F("OK"))) 
    { 
    if (reply.equals("")) 
     Serial.println(F("HC-06 didn't reply in time!")); 
    else 
     Serial.println("Unexpected reply ('" + reply + "') to AT command"); 

    return false; 
    } 

    // Success 
    return true; 
}