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"}
Committer:
fkellermavnet
Date:
Fri Jul 22 15:06:52 2016 +0000
Revision:
30:33be8e2992f3
Parent:
19:f89baed3bd6f
Child:
40:aec4d09fde23
sockread returns how many read.  Software init only hardware re-inits when no response, otherwise loops until software init done.  Per WNC now wait 20mS between AT commands.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
JMF 2:0e2ef866af95 1
JMF 2:0e2ef866af95 2 #ifndef __WNC_CONTROL_H_
JMF 2:0e2ef866af95 3 #define __WNC_CONTROL_H_
JMF 2:0e2ef866af95 4
JMF 2:0e2ef866af95 5 static const unsigned WNC_TIMEOUT_MS = 5000;
JMF 2:0e2ef866af95 6
JMF 2:0e2ef866af95 7 // Core function that sends data to the WNC UART
JMF 2:0e2ef866af95 8 extern int send_wnc_cmd(const char * s, string ** r, int ms_timeout);
JMF 2:0e2ef866af95 9
JMF 2:0e2ef866af95 10 // Low level command functions
JMF 2:0e2ef866af95 11 extern void at_init_wnc(void);
JMF 2:0e2ef866af95 12 extern void at_sockopen_wnc(const string & ipStr, const char * port );
JMF 2:0e2ef866af95 13 extern void at_sockclose_wnc(void);
JMF 2:0e2ef866af95 14 extern int at_dnsresolve_wnc(const char * s, string * ipStr);
JMF 2:0e2ef866af95 15 extern void at_sockwrite_wnc(const char * s);
JMF 2:0e2ef866af95 16 extern unsigned at_sockread_wnc(string * pS, unsigned n, unsigned retries);
fkellermavnet 19:f89baed3bd6f 17 extern void at_at_wnc(void);
JMF 2:0e2ef866af95 18
JMF 2:0e2ef866af95 19 // High level functions that attempt to correct for things going bad with the WNC
JMF 2:0e2ef866af95 20 extern void software_init_mdm(void);
JMF 2:0e2ef866af95 21 extern void resolve_mdm(void);
JMF 2:0e2ef866af95 22 extern void sockopen_mdm(void);
JMF 2:0e2ef866af95 23 extern void sockwrite_mdm(const char * s);
fkellermavnet 30:33be8e2992f3 24 extern unsigned sockread_mdm(string * sockData, int len, int retries);
JMF 2:0e2ef866af95 25 extern void sockclose_mdm(void);
JMF 2:0e2ef866af95 26
JMF 2:0e2ef866af95 27 #endif
JMF 2:0e2ef866af95 28
JMF 2:0e2ef866af95 29