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:
JMF
Date:
Fri Jul 08 23:52:38 2016 +0000
Revision:
0:9d5134074d84
Child:
11:e6602513730f
Initial version of AT&T_Avnet Shape Hackathon WNC Shield board

Who changed what in which revision?

UserRevisionLine numberNew contents of line
JMF 0:9d5134074d84 1
JMF 0:9d5134074d84 2 #ifndef HTS221_H_
JMF 0:9d5134074d84 3 #define HTS221_H_
JMF 0:9d5134074d84 4
JMF 0:9d5134074d84 5 class HTS221 {
JMF 0:9d5134074d84 6 public:
JMF 0:9d5134074d84 7 HTS221(void);
JMF 0:9d5134074d84 8 int begin(void);
JMF 0:9d5134074d84 9 int activate(void);
JMF 0:9d5134074d84 10 int deactivate(void);
JMF 0:9d5134074d84 11
JMF 0:9d5134074d84 12 int bduActivate(void);
JMF 0:9d5134074d84 13 int bduDeactivate(void);
JMF 0:9d5134074d84 14
JMF 0:9d5134074d84 15 int readHumidity(void);
JMF 0:9d5134074d84 16 double readTemperature(void);
JMF 0:9d5134074d84 17 private:
JMF 0:9d5134074d84 18 int storeCalibration(void);
JMF 0:9d5134074d84 19 unsigned char _h0_rH, _h1_rH;
JMF 0:9d5134074d84 20 unsigned int _T0_degC, _T1_degC;
JMF 0:9d5134074d84 21 unsigned int _H0_T0, _H1_T0;
JMF 0:9d5134074d84 22 unsigned int _T0_OUT, _T1_OUT;
JMF 0:9d5134074d84 23 double _temperature;
JMF 0:9d5134074d84 24 int _humidity;
JMF 0:9d5134074d84 25 unsigned char _address;
JMF 0:9d5134074d84 26
JMF 0:9d5134074d84 27 unsigned char readRegister(unsigned char slaveAddress, unsigned char regToRead);
JMF 0:9d5134074d84 28 int writeRegister(unsigned char slaveAddress, unsigned char regToWrite, unsigned char dataToWrite);
JMF 0:9d5134074d84 29 };
JMF 0:9d5134074d84 30
JMF 0:9d5134074d84 31 #define HTS221_ADDRESS 0x5F
JMF 0:9d5134074d84 32
JMF 0:9d5134074d84 33 //Define a few of the registers that we will be accessing on the HTS221
JMF 0:9d5134074d84 34 #define WHO_AM_I 0x0F
JMF 0:9d5134074d84 35 #define WHO_AM_I_RETURN 0xBC //This read-only register contains the device identifier, set to BCh
JMF 0:9d5134074d84 36
JMF 0:9d5134074d84 37 #define AVERAGE_REG 0x10 // To configure humidity/temperature average.
JMF 0:9d5134074d84 38 #define AVERAGE_DEFAULT 0x1B
JMF 0:9d5134074d84 39
JMF 0:9d5134074d84 40 /*
JMF 0:9d5134074d84 41 * [7] PD: power down control
JMF 0:9d5134074d84 42 * (0: power-down mode; 1: active mode)
JMF 0:9d5134074d84 43 *
JMF 0:9d5134074d84 44 * [6:3] Reserved
JMF 0:9d5134074d84 45 *
JMF 0:9d5134074d84 46 * [2] BDU: block data update
JMF 0:9d5134074d84 47 * (0: continuous update; 1: output registers not updated until MSB and LSB reading)
JMF 0:9d5134074d84 48 The BDU bit is used to inhibit the output register update between the reading of the upper
JMF 0:9d5134074d84 49 and lower register parts. In default mode (BDU = ?0?), the lower and upper register parts are
JMF 0:9d5134074d84 50 updated continuously. If it is not certain whether the read will be faster than output data rate,
JMF 0:9d5134074d84 51 it is recommended to set the BDU bit to ?1?. In this way, after the reading of the lower (upper)
JMF 0:9d5134074d84 52 register part, the content of that output register is not updated until the upper (lower) part is
JMF 0:9d5134074d84 53 read also.
JMF 0:9d5134074d84 54 *
JMF 0:9d5134074d84 55 * [1:0] ODR1, ODR0: output data rate selection (see table 17)
JMF 0:9d5134074d84 56 */
JMF 0:9d5134074d84 57 #define CTRL_REG1 0x20
JMF 0:9d5134074d84 58 #define POWER_UP 0x80
JMF 0:9d5134074d84 59 #define BDU_SET 0x4
JMF 0:9d5134074d84 60 #define ODR0_SET 0x1 // setting sensor reading period 1Hz
JMF 0:9d5134074d84 61
JMF 0:9d5134074d84 62 #define CTRL_REG2 0x21
JMF 0:9d5134074d84 63 #define CTRL_REG3 0x22
JMF 0:9d5134074d84 64 #define REG_DEFAULT 0x00
JMF 0:9d5134074d84 65
JMF 0:9d5134074d84 66 #define STATUS_REG 0x27
JMF 0:9d5134074d84 67 #define TEMPERATURE_READY 0x1
JMF 0:9d5134074d84 68 #define HUMIDITY_READY 0x2
JMF 0:9d5134074d84 69
JMF 0:9d5134074d84 70 #define HUMIDITY_L_REG 0x28
JMF 0:9d5134074d84 71 #define HUMIDITY_H_REG 0x29
JMF 0:9d5134074d84 72 #define TEMP_L_REG 0x2A
JMF 0:9d5134074d84 73 #define TEMP_H_REG 0x2B
JMF 0:9d5134074d84 74 /*
JMF 0:9d5134074d84 75 * calibration registry should be read for temperature and humidity calculation.
JMF 0:9d5134074d84 76 * Before the first calculation of temperature and humidity,
JMF 0:9d5134074d84 77 * the master reads out the calibration coefficients.
JMF 0:9d5134074d84 78 * will do at init phase
JMF 0:9d5134074d84 79 */
JMF 0:9d5134074d84 80 #define CALIB_START 0x30
JMF 0:9d5134074d84 81 #define CALIB_END 0x3F
JMF 0:9d5134074d84 82 /*
JMF 0:9d5134074d84 83 #define CALIB_T0_DEGC_X8 0x32
JMF 0:9d5134074d84 84 #define CALIB_T1_DEGC_X8 0x33
JMF 0:9d5134074d84 85 #define CALIB_T1_T0_MSB 0x35
JMF 0:9d5134074d84 86 #define CALIB_T0_OUT_L 0x3C
JMF 0:9d5134074d84 87 #define CALIB_T0_OUT_H 0x3D
JMF 0:9d5134074d84 88 #define CALIB_T1_OUT_L 0x3E
JMF 0:9d5134074d84 89 #define CALIB_T1_OUT_H 0x3F
JMF 0:9d5134074d84 90 */
JMF 0:9d5134074d84 91
JMF 0:9d5134074d84 92 #endif