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

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_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

{"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:

{"LED":"Red"}

{"LED":"Green"}

{"LED":"Blue"}

#ifndef __WNC_CONTROL_H_
#define __WNC_CONTROL_H_

static const unsigned WNC_TIMEOUT_MS = 5000;

// Core function that sends data to the WNC UART
extern int send_wnc_cmd(const char * s, string ** r, int ms_timeout);

// Low level command functions
extern void at_init_wnc(void);
extern void at_sockopen_wnc(const string & ipStr, const char * port );
extern void at_sockclose_wnc(void);
extern int at_dnsresolve_wnc(const char * s, string * ipStr);
extern void at_sockwrite_wnc(const char * s);
extern unsigned at_sockread_wnc(string * pS, unsigned n, unsigned retries);
extern void at_at_wnc(void);

// High level functions that attempt to correct for things going bad with the WNC
extern void software_init_mdm(void);
extern void resolve_mdm(void);
extern void sockopen_mdm(void);
extern void sockwrite_mdm(const char * s);
extern unsigned sockread_mdm(string * sockData, int len, int retries);
extern void sockclose_mdm(void);

#endif