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:
sveljko
Date:
Fri Sep 02 17:44:55 2016 +0000
Revision:
81:a5df87708b9a
Parent:
68:6e311c747045
First version that works, forked from official AT&T IoT starter kit repository.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
fkellermavnet 68:6e311c747045 1 /* ===================================================================
fkellermavnet 68:6e311c747045 2 Copyright © 2016, AVNET Inc.
fkellermavnet 68:6e311c747045 3
fkellermavnet 68:6e311c747045 4 Licensed under the Apache License, Version 2.0 (the "License");
fkellermavnet 68:6e311c747045 5 you may not use this file except in compliance with the License.
fkellermavnet 68:6e311c747045 6 You may obtain a copy of the License at
fkellermavnet 68:6e311c747045 7
fkellermavnet 68:6e311c747045 8 http://www.apache.org/licenses/LICENSE-2.0
fkellermavnet 68:6e311c747045 9
fkellermavnet 68:6e311c747045 10 Unless required by applicable law or agreed to in writing,
fkellermavnet 68:6e311c747045 11 software distributed under the License is distributed on an
fkellermavnet 68:6e311c747045 12 "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
fkellermavnet 68:6e311c747045 13 either express or implied. See the License for the specific
fkellermavnet 68:6e311c747045 14 language governing permissions and limitations under the License.
fkellermavnet 68:6e311c747045 15
fkellermavnet 68:6e311c747045 16 ======================================================================== */
fkellermavnet 68:6e311c747045 17
JMF 60:2aa16fd02dfd 18 //Used for ULINK output only
JMF 60:2aa16fd02dfd 19 //
JMF 60:2aa16fd02dfd 20
JMF 60:2aa16fd02dfd 21 /* ITM registers */
JMF 60:2aa16fd02dfd 22 #define ITM_PORT0_U8 (*((volatile unsigned int *)0xE0000000))
JMF 60:2aa16fd02dfd 23 #define ITM_PORT0_U32 (*((volatile unsigned long *)0xE0000000))
JMF 60:2aa16fd02dfd 24 #define ITM_TER (*((volatile unsigned long *)0xE0000E00))
JMF 60:2aa16fd02dfd 25 #define ITM_TCR (*((volatile unsigned long *)0xE0000E80))
JMF 60:2aa16fd02dfd 26
JMF 60:2aa16fd02dfd 27 #define ITM_TCR_ITMENA_Msk (1UL << 0)
JMF 60:2aa16fd02dfd 28
JMF 60:2aa16fd02dfd 29 /*!< Value identifying \ref ITM_RxBuffer is ready for next character. */
JMF 60:2aa16fd02dfd 30 #define ITM_RXBUFFER_EMPTY 0x5AA55AA5
JMF 60:2aa16fd02dfd 31
JMF 60:2aa16fd02dfd 32 /*!< Variable to receive characters. */
JMF 60:2aa16fd02dfd 33 extern
JMF 60:2aa16fd02dfd 34 volatile int ITM_RxBuffer;
JMF 60:2aa16fd02dfd 35 volatile int ITM_RxBuffer = ITM_RXBUFFER_EMPTY;
JMF 60:2aa16fd02dfd 36
JMF 60:2aa16fd02dfd 37 /** \brief ITM Send Character
JMF 60:2aa16fd02dfd 38
JMF 60:2aa16fd02dfd 39 The function transmits a character via the ITM channel 0, and
JMF 60:2aa16fd02dfd 40 \li Just returns when no debugger is connected that has booked the output.
JMF 60:2aa16fd02dfd 41 \li Is blocking when a debugger is connected, but the previous character
JMF 60:2aa16fd02dfd 42 sent has not been transmitted.
JMF 60:2aa16fd02dfd 43
JMF 60:2aa16fd02dfd 44 \param [in] ch Character to transmit.
JMF 60:2aa16fd02dfd 45
JMF 60:2aa16fd02dfd 46 \returns Character to transmit.
JMF 60:2aa16fd02dfd 47 */
JMF 60:2aa16fd02dfd 48 int ITM_putc (int ch) {
JMF 60:2aa16fd02dfd 49 if ((ITM_TCR & ITM_TCR_ITMENA_Msk) && /* ITM enabled */
JMF 60:2aa16fd02dfd 50 (ITM_TER & (1UL << 0) )) { /* ITM Port #0 enabled */
JMF 60:2aa16fd02dfd 51 while (ITM_PORT0_U32 == 0);
JMF 60:2aa16fd02dfd 52 ITM_PORT0_U8 = (int)ch;
JMF 60:2aa16fd02dfd 53 }
JMF 60:2aa16fd02dfd 54 return (ch);
JMF 60:2aa16fd02dfd 55 }
JMF 60:2aa16fd02dfd 56
JMF 60:2aa16fd02dfd 57 /** \brief ITM Receive Character
JMF 60:2aa16fd02dfd 58
JMF 60:2aa16fd02dfd 59 The function inputs a character via the external variable \ref ITM_RxBuffer.
JMF 60:2aa16fd02dfd 60 This variable is monitored and altered by the debugger to provide input.
JMF 60:2aa16fd02dfd 61
JMF 60:2aa16fd02dfd 62 \return Received character.
JMF 60:2aa16fd02dfd 63 \return -1 No character pending.
JMF 60:2aa16fd02dfd 64 */
JMF 60:2aa16fd02dfd 65 int ITM_getc (void) {
JMF 60:2aa16fd02dfd 66 int ch = -1; /* no character available */
JMF 60:2aa16fd02dfd 67
JMF 60:2aa16fd02dfd 68 if (ITM_RxBuffer != ITM_RXBUFFER_EMPTY) {
JMF 60:2aa16fd02dfd 69 ch = ITM_RxBuffer;
JMF 60:2aa16fd02dfd 70 ITM_RxBuffer = ITM_RXBUFFER_EMPTY; /* ready for next character */
JMF 60:2aa16fd02dfd 71 }
JMF 60:2aa16fd02dfd 72
JMF 60:2aa16fd02dfd 73 return (ch);
JMF 60:2aa16fd02dfd 74 }
JMF 60:2aa16fd02dfd 75
JMF 60:2aa16fd02dfd 76 /** \brief ITM send string
JMF 60:2aa16fd02dfd 77
JMF 60:2aa16fd02dfd 78 The function sends a null terminated string via the external variable \ref ITM_RxBuffer.
JMF 60:2aa16fd02dfd 79 This variable is monitored and altered by the debugger to provide input.
JMF 60:2aa16fd02dfd 80
JMF 60:2aa16fd02dfd 81 \return Received character.
JMF 60:2aa16fd02dfd 82 \return -1 No character pending.
JMF 60:2aa16fd02dfd 83 */
JMF 60:2aa16fd02dfd 84 int ITM_puts (char * str) {
JMF 60:2aa16fd02dfd 85 int i=0;
JMF 60:2aa16fd02dfd 86
JMF 60:2aa16fd02dfd 87 while(str[i])
JMF 60:2aa16fd02dfd 88 ITM_putc(str[i++]);
JMF 60:2aa16fd02dfd 89 return i;
JMF 60:2aa16fd02dfd 90 }
JMF 60:2aa16fd02dfd 91