Simcom800: change APN setting for IoT SIM Card of China Mobile

Author: gilbertjuly

applications/juma/sim800/app.c

@@ -43,8 +43,8 @@ void on_ready(void)
     if(SUCCESS == sim800_init()){
 
         // Test to make a phone call
-        printf("\r\nTest to make a phone call\r\n");    
-        sim800_test_phone_call("18621797323");
+        //printf("\r\nTest to make a phone call\r\n");    
+        //sim800_test_phone_call("18621797323");
 
         // Test HTTP post JSON data
         printf("\r\nTest HTTP post JSON data\r\n");

system/middlewares/juma/simcom/sim800.c

@@ -104,10 +104,15 @@ static int sim800_setup(){
     if(ERROR == send_AT_cmd("AT+SAPBR=3,1,\"Contype\",\"GPRS\"\r\n", "OK", AT_CMD_TIMEOUT))
         return ERROR;
 
+#if 1 /* APN Setting for IOT SIM Card of CHINA MOBILE */
+    if(ERROR == send_AT_cmd("AT+SAPBR=3,1,\"APN\",\"CMIOT\"\r\n", "OK", AT_CMD_TIMEOUT))
+        return ERROR;
+#else /* Normal SIM Card */
     if(ERROR == send_AT_cmd("AT+SAPBR=3,1,\"APN\",\"CMNET\"\r\n", "OK", AT_CMD_TIMEOUT))
         return ERROR;
+#endif
 
-    if(ERROR == send_AT_cmd("AT+SAPBR=1,1\r\n", "OK", 1000)){
+    if(ERROR == send_AT_cmd("AT+SAPBR=1,1\r\n", "OK", 3000)){
 
         //ERROR, maybe it's because that it's already be opened, let's check:
         if(ERROR == send_AT_cmd("AT+SAPBR=2,1\r\n", "+SAPBR: 1,1", 2000))