Srdjan Veljkovic / Mbed 2 deprecated Avnet_ATT_Cellular_Pubnub

Pubnub demo for AT&T IoT Starter Kit. Functionally similar to the Flow demo.

Dependencies:   FXOS8700CQ MODSERIAL mbed

http://pubnub.github.io/slides/workshop/pictures/broadcast.png

Pubnub demo for AT&T IoT Starter Kit

This demo is functionally similar to the Flow demo, so you can find general information here: https://developer.mbed.org/users/JMF/code/Avnet_ATT_Cellular_IOT/.

The only difference is that we use Pubnub to publish the measurements and subscribe to receiving the instructions to set the LED.

Settings

Pubnub related settings are:

Pubnub settings in `config_me.h`

PUBNUB_SUBSCRIBE_KEY
PUBNUB_PUBLISH_KEY
PUBNUB_CHANNEL

All are documented in their respective comments.

Pubnub context class

Similar to Pubnub SDKs, we provide a Pubnub context class. It is defined in pubnub.h header file and implemented in pubnub.cpp.

It provides only the fundamental "publish" and "subscribe" methods. They are documented in the header file.

This class is reusable in other code (it is not specific to this demo), it has a very narrow interface to the AT&T IoT cellular modem code. For example of use, you can look at the main() (in main.c).

Sample of published data

Published message w/measurement data

{"serial":"vstarterkit001","temp":89.61,"humidity":35,"accelX":0.97,"accelY":0.013,"accelZ":-0.038}

Don't worry, nobody got burnt, the temperature is in degrees Fahrenheit. :)

Publish a message (from, say, the Pubnub console http://pubnub.com/console) of the form {"LED":<name-of-the-color>} on the channel that this demo listens to (default is hello_world) to turn the LED to that color on the Starter Kit:

Turn LED to red

{"LED":"Red"}

Turn LED to green

{"LED":"Green"}

Turn LED to blue

{"LED":"Blue"}

Files at this revision

API Documentation at this revision

Revision 39:1996eaec02d6, committed 2016-07-23

Comitter:
fkellermavnet
Date:
Sat Jul 23 14:58:03 2016 +0000
Parent:
38:564b312a719f
Child:
40:aec4d09fde23
Commit message:
Changed sockwrite to wait a long time now, for 31 seconds (something to try since the connect timeout is set to 30 seconds).; ; Corrected max length string to the 1500 WNC limit (was 99999).

Changed in this revision

wnc_control.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/wnc_control.cpp	Sat Jul 23 04:27:35 2016 +0000
+++ b/wnc_control.cpp	Sat Jul 23 14:58:03 2016 +0000
@@ -31,8 +31,8 @@
   {
     WNC_MDM_ERR = WNC_OK;
     at_init_wnc();
-    if (WNC_MDM_ERR == WNC_NO_RESPONSE)
-      reinitialize_mdm();
+    //if (WNC_MDM_ERR == WNC_NO_RESPONSE)
+    //  reinitialize_mdm();
   } while (WNC_MDM_ERR != WNC_OK); 
 }
 
@@ -44,7 +44,7 @@
       at_dnsresolve_wnc(MY_SERVER_URL, &MyServerIpAddress);
       if (WNC_MDM_ERR == WNC_NO_RESPONSE)
       {
-        reinitialize_mdm();
+      //  reinitialize_mdm();
         software_init_mdm();
       }
       else if (WNC_MDM_ERR == WNC_CMD_ERR)
@@ -68,7 +68,7 @@
       at_sockopen_wnc(MyServerIpAddress, MY_PORT_STR);
       if (WNC_MDM_ERR == WNC_NO_RESPONSE)
       {
-        reinitialize_mdm();
+        // reinitialize_mdm();
         software_init_mdm();
       }
       else if (WNC_MDM_ERR == WNC_CMD_ERR)
@@ -88,14 +88,14 @@
       at_sockwrite_wnc(s);
       if (WNC_MDM_ERR == WNC_NO_RESPONSE)
       {
-        reinitialize_mdm();
+        // reinitialize_mdm();
         software_init_mdm();
       }
       else if (WNC_MDM_ERR == WNC_CMD_ERR)
       {
         pc.puts("Socket Write fail!!!\r\n");
         // Have seen when write fails modem gets stuck in bad state, try to recover
-        reinitialize_mdm();
+        // reinitialize_mdm();
         software_init_mdm();
       }
     } while (WNC_MDM_ERR != WNC_OK);
@@ -121,7 +121,7 @@
       {
         if (n == 0)
         {
-            reinitialize_mdm();
+           // reinitialize_mdm();
             software_init_mdm();
         }
         else
@@ -149,7 +149,7 @@
       socketOpen = 0;
       if (WNC_MDM_ERR == WNC_NO_RESPONSE)
       {
-        reinitialize_mdm();
+        // reinitialize_mdm();
         software_init_mdm();
       }
       else if (WNC_MDM_ERR == WNC_CMD_ERR)
@@ -283,7 +283,7 @@
   cmd_str += "\",";
   cmd_str += port;
   cmd_str += ",30";
-  send_wnc_cmd(cmd_str.c_str(), &pRespStr, 30000);
+  send_wnc_cmd(cmd_str.c_str(), &pRespStr, 31000);
   send_wnc_cmd("AT@SOCKCREAT?", &pRespStr, WNC_TIMEOUT_MS);
   send_wnc_cmd("AT@SOCKCONN?", &pRespStr, WNC_TIMEOUT_MS);
 }
@@ -334,7 +334,7 @@
   string * pRespStr;
   char num2str[6];
   size_t sLen = strlen(s);
-  if (sLen <= 99999)
+  if (sLen <= 1500)
   {
     string cmd_str("AT@SOCKWRITE=1,");
     itoa(sLen, num2str, 10);
@@ -353,7 +353,7 @@
       cmd_str += num2str;
     }
     cmd_str += "\"";
-    send_wnc_cmd(cmd_str.c_str(), &pRespStr, WNC_TIMEOUT_MS);
+    send_wnc_cmd(cmd_str.c_str(), &pRespStr, 31000);
   }
   else
     pc.puts("sockwrite Err, string to long\r\n");