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 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"}
main.cpp@63:90d7c69993cd, 2016-08-01 (annotated)
- Committer:
- stefanrousseau
- Date:
- Mon Aug 01 20:19:58 2016 +0000
- Revision:
- 63:90d7c69993cd
- Parent:
- 61:f6b93129f954
- Child:
- 64:09004cd610df
Changed the mdm UART from SerialBuffered to MODSERIAL so there will only be one type.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
stefanrousseau | 55:3abf9e3f42e6 | 1 | #include "mbed.h" |
JMF | 0:9d5134074d84 | 2 | #include <cctype> |
JMF | 0:9d5134074d84 | 3 | #include <string> |
JMF | 2:0e2ef866af95 | 4 | #include "config_me.h" |
stefanrousseau | 4:f83bedd9cab4 | 5 | #include "sensors.h" |
stefanrousseau | 61:f6b93129f954 | 6 | #include "cell_modem.h" |
stefanrousseau | 11:e6602513730f | 7 | #include "hardware.h" |
stefanrousseau | 11:e6602513730f | 8 | |
stefanrousseau | 61:f6b93129f954 | 9 | I2C i2c(PTC11, PTC10); //SDA, SCL -- define the I2C pins being used |
stefanrousseau | 56:cb42ff383dab | 10 | MODSERIAL pc(USBTX, USBRX, 256, 256); // tx, rx with default tx, rx buffer sizes |
stefanrousseau | 63:90d7c69993cd | 11 | MODSERIAL mdm(PTD3, PTD2, 4096, 4096); |
stefanrousseau | 16:17c5916f2d12 | 12 | DigitalOut led_green(LED_GREEN); |
stefanrousseau | 16:17c5916f2d12 | 13 | DigitalOut led_red(LED_RED); |
stefanrousseau | 16:17c5916f2d12 | 14 | DigitalOut led_blue(LED_BLUE); |
JMF | 0:9d5134074d84 | 15 | |
JMF | 0:9d5134074d84 | 16 | |
stefanrousseau | 3:26b3cc155f39 | 17 | //******************************************************************************************************************************************** |
stefanrousseau | 12:7c94ec5069dc | 18 | //* Create string with sensor readings that can be sent to flow as an HTTP get |
stefanrousseau | 3:26b3cc155f39 | 19 | //******************************************************************************************************************************************** |
stefanrousseau | 12:7c94ec5069dc | 20 | K64F_Sensors_t SENSOR_DATA = |
stefanrousseau | 3:26b3cc155f39 | 21 | { |
stefanrousseau | 12:7c94ec5069dc | 22 | .Temperature = "0", |
stefanrousseau | 12:7c94ec5069dc | 23 | .Humidity = "0", |
stefanrousseau | 12:7c94ec5069dc | 24 | .AccelX = "0", |
stefanrousseau | 12:7c94ec5069dc | 25 | .AccelY = "0", |
stefanrousseau | 12:7c94ec5069dc | 26 | .AccelZ = "0", |
stefanrousseau | 12:7c94ec5069dc | 27 | .MagnetometerX = "0", |
stefanrousseau | 12:7c94ec5069dc | 28 | .MagnetometerY = "0", |
stefanrousseau | 12:7c94ec5069dc | 29 | .MagnetometerZ = "0", |
stefanrousseau | 12:7c94ec5069dc | 30 | .AmbientLightVis = "0", |
stefanrousseau | 12:7c94ec5069dc | 31 | .AmbientLightIr = "0", |
stefanrousseau | 12:7c94ec5069dc | 32 | .UVindex = "0", |
stefanrousseau | 12:7c94ec5069dc | 33 | .Proximity = "0", |
stefanrousseau | 12:7c94ec5069dc | 34 | .Temperature_Si7020 = "0", |
stefanrousseau | 55:3abf9e3f42e6 | 35 | .Humidity_Si7020 = "0", |
stefanrousseau | 55:3abf9e3f42e6 | 36 | .Virtual_Sensor1 = "0", |
stefanrousseau | 55:3abf9e3f42e6 | 37 | .Virtual_Sensor2 = "0", |
stefanrousseau | 55:3abf9e3f42e6 | 38 | .Virtual_Sensor3 = "0", |
stefanrousseau | 55:3abf9e3f42e6 | 39 | .Virtual_Sensor4 = "0", |
stefanrousseau | 55:3abf9e3f42e6 | 40 | .Virtual_Sensor5 = "0", |
stefanrousseau | 55:3abf9e3f42e6 | 41 | .Virtual_Sensor6 = "0", |
stefanrousseau | 55:3abf9e3f42e6 | 42 | .Virtual_Sensor7 = "0", |
stefanrousseau | 55:3abf9e3f42e6 | 43 | .Virtual_Sensor8 = "0" |
stefanrousseau | 3:26b3cc155f39 | 44 | }; |
stefanrousseau | 12:7c94ec5069dc | 45 | |
stefanrousseau | 3:26b3cc155f39 | 46 | void GenerateModemString(char * modem_string) |
stefanrousseau | 3:26b3cc155f39 | 47 | { |
stefanrousseau | 12:7c94ec5069dc | 48 | switch(iSensorsToReport) |
stefanrousseau | 12:7c94ec5069dc | 49 | { |
stefanrousseau | 12:7c94ec5069dc | 50 | case TEMP_HUMIDITY_ONLY: |
stefanrousseau | 12:7c94ec5069dc | 51 | { |
stefanrousseau | 12:7c94ec5069dc | 52 | sprintf(modem_string, "GET %s%s?serial=%s&temp=%s&humidity=%s %s%s\r\n\r\n", FLOW_BASE_URL, FLOW_INPUT_NAME, FLOW_DEVICE_NAME, SENSOR_DATA.Temperature, SENSOR_DATA.Humidity, FLOW_URL_TYPE, MY_SERVER_URL); |
stefanrousseau | 12:7c94ec5069dc | 53 | break; |
stefanrousseau | 12:7c94ec5069dc | 54 | } |
stefanrousseau | 12:7c94ec5069dc | 55 | case TEMP_HUMIDITY_ACCELEROMETER: |
stefanrousseau | 12:7c94ec5069dc | 56 | { |
stefanrousseau | 12:7c94ec5069dc | 57 | sprintf(modem_string, "GET %s%s?serial=%s&temp=%s&humidity=%s&accelX=%s&accelY=%s&accelZ=%s %s%s\r\n\r\n", FLOW_BASE_URL, FLOW_INPUT_NAME, FLOW_DEVICE_NAME, SENSOR_DATA.Temperature, SENSOR_DATA.Humidity, SENSOR_DATA.AccelX,SENSOR_DATA.AccelY,SENSOR_DATA.AccelZ, FLOW_URL_TYPE, MY_SERVER_URL); |
stefanrousseau | 12:7c94ec5069dc | 58 | break; |
stefanrousseau | 12:7c94ec5069dc | 59 | } |
stefanrousseau | 12:7c94ec5069dc | 60 | case TEMP_HUMIDITY_ACCELEROMETER_PMODSENSORS: |
stefanrousseau | 12:7c94ec5069dc | 61 | { |
stefanrousseau | 12:7c94ec5069dc | 62 | sprintf(modem_string, "GET %s%s?serial=%s&temp=%s&humidity=%s&accelX=%s&accelY=%s&accelZ=%s&proximity=%s&light_uv=%s&light_vis=%s&light_ir=%s %s%s\r\n\r\n", FLOW_BASE_URL, FLOW_INPUT_NAME, FLOW_DEVICE_NAME, SENSOR_DATA.Temperature, SENSOR_DATA.Humidity, SENSOR_DATA.AccelX,SENSOR_DATA.AccelY,SENSOR_DATA.AccelZ, SENSOR_DATA.Proximity, SENSOR_DATA.UVindex, SENSOR_DATA.AmbientLightVis, SENSOR_DATA.AmbientLightIr, FLOW_URL_TYPE, MY_SERVER_URL); |
stefanrousseau | 12:7c94ec5069dc | 63 | break; |
stefanrousseau | 12:7c94ec5069dc | 64 | } |
stefanrousseau | 55:3abf9e3f42e6 | 65 | case TEMP_HUMIDITY_ACCELEROMETER_PMODSENSORS_VIRTUALSENSORS: |
stefanrousseau | 55:3abf9e3f42e6 | 66 | { |
stefanrousseau | 55:3abf9e3f42e6 | 67 | sprintf(modem_string, "GET %s%s?serial=%s&temp=%s&humidity=%s&accelX=%s&accelY=%s&accelZ=%s&proximity=%s&light_uv=%s&light_vis=%s&light_ir=%s&virt_sens1=%s&virt_sens2=%s&virt_sens3=%s&virt_sens4=%s&virt_sens5=%s&virt_sens6=%s&virt_sens7=%s&virt_sens8=%s %s%s\r\n\r\n", FLOW_BASE_URL, FLOW_INPUT_NAME, FLOW_DEVICE_NAME, SENSOR_DATA.Temperature, SENSOR_DATA.Humidity, SENSOR_DATA.AccelX,SENSOR_DATA.AccelY,SENSOR_DATA.AccelZ, SENSOR_DATA.Proximity, SENSOR_DATA.UVindex, SENSOR_DATA.AmbientLightVis, SENSOR_DATA.AmbientLightIr, SENSOR_DATA.Virtual_Sensor1, SENSOR_DATA.Virtual_Sensor2, SENSOR_DATA.Virtual_Sensor3, SENSOR_DATA.Virtual_Sensor4, SENSOR_DATA.Virtual_Sensor5, SENSOR_DATA.Virtual_Sensor6, SENSOR_DATA.Virtual_Sensor7, SENSOR_DATA.Virtual_Sensor8, FLOW_URL_TYPE, MY_SERVER_URL); |
stefanrousseau | 55:3abf9e3f42e6 | 68 | break; |
stefanrousseau | 55:3abf9e3f42e6 | 69 | } |
stefanrousseau | 12:7c94ec5069dc | 70 | default: |
stefanrousseau | 12:7c94ec5069dc | 71 | { |
stefanrousseau | 12:7c94ec5069dc | 72 | sprintf(modem_string, "Invalid sensor selected\r\n\r\n"); |
stefanrousseau | 12:7c94ec5069dc | 73 | break; |
stefanrousseau | 12:7c94ec5069dc | 74 | } |
stefanrousseau | 16:17c5916f2d12 | 75 | } //switch(iSensorsToReport) |
stefanrousseau | 3:26b3cc155f39 | 76 | } //GenerateModemString |
stefanrousseau | 3:26b3cc155f39 | 77 | |
stefanrousseau | 3:26b3cc155f39 | 78 | |
stefanrousseau | 3:26b3cc155f39 | 79 | //Periodic timer |
stefanrousseau | 3:26b3cc155f39 | 80 | Ticker OneMsTicker; |
stefanrousseau | 3:26b3cc155f39 | 81 | volatile bool bTimerExpiredFlag = false; |
stefanrousseau | 3:26b3cc155f39 | 82 | int OneMsTicks = 0; |
stefanrousseau | 3:26b3cc155f39 | 83 | int iTimer1Interval_ms = 1000; |
stefanrousseau | 3:26b3cc155f39 | 84 | //******************************************************************************************************************************************** |
stefanrousseau | 3:26b3cc155f39 | 85 | //* Periodic 1ms timer tick |
stefanrousseau | 3:26b3cc155f39 | 86 | //******************************************************************************************************************************************** |
stefanrousseau | 3:26b3cc155f39 | 87 | void OneMsFunction() |
stefanrousseau | 3:26b3cc155f39 | 88 | { |
stefanrousseau | 3:26b3cc155f39 | 89 | OneMsTicks++; |
stefanrousseau | 3:26b3cc155f39 | 90 | if ((OneMsTicks % iTimer1Interval_ms) == 0) |
stefanrousseau | 3:26b3cc155f39 | 91 | { |
stefanrousseau | 3:26b3cc155f39 | 92 | bTimerExpiredFlag = true; |
stefanrousseau | 3:26b3cc155f39 | 93 | } |
stefanrousseau | 3:26b3cc155f39 | 94 | } //OneMsFunction() |
stefanrousseau | 3:26b3cc155f39 | 95 | |
stefanrousseau | 16:17c5916f2d12 | 96 | //******************************************************************************************************************************************** |
stefanrousseau | 16:17c5916f2d12 | 97 | //* Set the RGB LED's Color |
stefanrousseau | 16:17c5916f2d12 | 98 | //* LED Color 0=Off to 7=White. 3 bits represent BGR (bit0=Red, bit1=Green, bit2=Blue) |
stefanrousseau | 16:17c5916f2d12 | 99 | //******************************************************************************************************************************************** |
stefanrousseau | 16:17c5916f2d12 | 100 | void SetLedColor(unsigned char ucColor) |
stefanrousseau | 16:17c5916f2d12 | 101 | { |
stefanrousseau | 16:17c5916f2d12 | 102 | //Note that when an LED is on, you write a 0 to it: |
stefanrousseau | 16:17c5916f2d12 | 103 | led_red = !(ucColor & 0x1); //bit 0 |
stefanrousseau | 16:17c5916f2d12 | 104 | led_green = !(ucColor & 0x2); //bit 1 |
stefanrousseau | 16:17c5916f2d12 | 105 | led_blue = !(ucColor & 0x4); //bit 2 |
stefanrousseau | 16:17c5916f2d12 | 106 | } //SetLedColor() |
stefanrousseau | 16:17c5916f2d12 | 107 | |
stefanrousseau | 16:17c5916f2d12 | 108 | //******************************************************************************************************************************************** |
stefanrousseau | 61:f6b93129f954 | 109 | //* Process the JSON response. In this example we are only extracting a LED color. |
stefanrousseau | 16:17c5916f2d12 | 110 | //******************************************************************************************************************************************** |
stefanrousseau | 16:17c5916f2d12 | 111 | bool parse_JSON(char* json_string) |
stefanrousseau | 16:17c5916f2d12 | 112 | { |
stefanrousseau | 16:17c5916f2d12 | 113 | char* beginquote; |
stefanrousseau | 16:17c5916f2d12 | 114 | char token[] = "\"LED\":\""; |
stefanrousseau | 16:17c5916f2d12 | 115 | beginquote = strstr(json_string, token ); |
stefanrousseau | 16:17c5916f2d12 | 116 | if ((beginquote != 0)) |
stefanrousseau | 16:17c5916f2d12 | 117 | { |
stefanrousseau | 16:17c5916f2d12 | 118 | char cLedColor = beginquote[strlen(token)]; |
stefanrousseau | 16:17c5916f2d12 | 119 | printf(GRN "LED Found : %c" DEF "\r\n", cLedColor); |
stefanrousseau | 16:17c5916f2d12 | 120 | switch(cLedColor) |
stefanrousseau | 16:17c5916f2d12 | 121 | { |
stefanrousseau | 16:17c5916f2d12 | 122 | case 'O': |
stefanrousseau | 16:17c5916f2d12 | 123 | { //Off |
stefanrousseau | 16:17c5916f2d12 | 124 | SetLedColor(0); |
stefanrousseau | 16:17c5916f2d12 | 125 | break; |
stefanrousseau | 16:17c5916f2d12 | 126 | } |
stefanrousseau | 16:17c5916f2d12 | 127 | case 'R': |
stefanrousseau | 16:17c5916f2d12 | 128 | { //Red |
stefanrousseau | 16:17c5916f2d12 | 129 | SetLedColor(1); |
stefanrousseau | 16:17c5916f2d12 | 130 | break; |
stefanrousseau | 16:17c5916f2d12 | 131 | } |
stefanrousseau | 16:17c5916f2d12 | 132 | case 'G': |
stefanrousseau | 16:17c5916f2d12 | 133 | { //Green |
stefanrousseau | 16:17c5916f2d12 | 134 | SetLedColor(2); |
stefanrousseau | 16:17c5916f2d12 | 135 | break; |
stefanrousseau | 16:17c5916f2d12 | 136 | } |
stefanrousseau | 16:17c5916f2d12 | 137 | case 'Y': |
stefanrousseau | 16:17c5916f2d12 | 138 | { //Yellow |
stefanrousseau | 16:17c5916f2d12 | 139 | SetLedColor(3); |
stefanrousseau | 16:17c5916f2d12 | 140 | break; |
stefanrousseau | 16:17c5916f2d12 | 141 | } |
stefanrousseau | 16:17c5916f2d12 | 142 | case 'B': |
stefanrousseau | 16:17c5916f2d12 | 143 | { //Blue |
stefanrousseau | 16:17c5916f2d12 | 144 | SetLedColor(4); |
stefanrousseau | 16:17c5916f2d12 | 145 | break; |
stefanrousseau | 16:17c5916f2d12 | 146 | } |
stefanrousseau | 16:17c5916f2d12 | 147 | case 'M': |
stefanrousseau | 16:17c5916f2d12 | 148 | { //Magenta |
stefanrousseau | 16:17c5916f2d12 | 149 | SetLedColor(5); |
stefanrousseau | 16:17c5916f2d12 | 150 | break; |
stefanrousseau | 16:17c5916f2d12 | 151 | } |
stefanrousseau | 16:17c5916f2d12 | 152 | case 'T': |
stefanrousseau | 16:17c5916f2d12 | 153 | { //Turquoise |
stefanrousseau | 16:17c5916f2d12 | 154 | SetLedColor(6); |
stefanrousseau | 16:17c5916f2d12 | 155 | break; |
stefanrousseau | 16:17c5916f2d12 | 156 | } |
stefanrousseau | 16:17c5916f2d12 | 157 | case 'W': |
stefanrousseau | 16:17c5916f2d12 | 158 | { //White |
stefanrousseau | 16:17c5916f2d12 | 159 | SetLedColor(7); |
stefanrousseau | 16:17c5916f2d12 | 160 | break; |
stefanrousseau | 16:17c5916f2d12 | 161 | } |
stefanrousseau | 16:17c5916f2d12 | 162 | default: |
stefanrousseau | 16:17c5916f2d12 | 163 | { |
stefanrousseau | 16:17c5916f2d12 | 164 | break; |
stefanrousseau | 16:17c5916f2d12 | 165 | } |
stefanrousseau | 16:17c5916f2d12 | 166 | } //switch(cLedColor) |
stefanrousseau | 16:17c5916f2d12 | 167 | return true; |
stefanrousseau | 16:17c5916f2d12 | 168 | } |
stefanrousseau | 16:17c5916f2d12 | 169 | else |
stefanrousseau | 16:17c5916f2d12 | 170 | { |
stefanrousseau | 16:17c5916f2d12 | 171 | return false; |
stefanrousseau | 16:17c5916f2d12 | 172 | } |
stefanrousseau | 16:17c5916f2d12 | 173 | } //parse_JSON |
stefanrousseau | 16:17c5916f2d12 | 174 | |
JMF | 0:9d5134074d84 | 175 | int main() { |
stefanrousseau | 61:f6b93129f954 | 176 | static unsigned ledOnce = 0; |
fkellermavnet | 20:27a4f27254d0 | 177 | |
stefanrousseau | 61:f6b93129f954 | 178 | pc.baud(115200); |
stefanrousseau | 61:f6b93129f954 | 179 | pc.printf(GRN "Hello World from the Cellular IoT Kit!\r\n\r\n"); |
JMF | 0:9d5134074d84 | 180 | |
stefanrousseau | 61:f6b93129f954 | 181 | //Initialize the I2C sensors that are present |
stefanrousseau | 11:e6602513730f | 182 | sensors_init(); |
stefanrousseau | 12:7c94ec5069dc | 183 | read_sensors(); |
stefanrousseau | 11:e6602513730f | 184 | |
stefanrousseau | 61:f6b93129f954 | 185 | // Set LED to RED until init finishes |
stefanrousseau | 61:f6b93129f954 | 186 | SetLedColor(0x1); //Red |
JMF | 0:9d5134074d84 | 187 | // Initialize the modem |
stefanrousseau | 61:f6b93129f954 | 188 | pc.printf("\r\n"); |
stefanrousseau | 61:f6b93129f954 | 189 | cell_modem_init(); |
stefanrousseau | 61:f6b93129f954 | 190 | // Set LED BLUE for partial init |
stefanrousseau | 61:f6b93129f954 | 191 | SetLedColor(0x4); //Blue |
JMF | 0:9d5134074d84 | 192 | |
stefanrousseau | 3:26b3cc155f39 | 193 | //Create a 1ms timer tick function: |
stefanrousseau | 61:f6b93129f954 | 194 | iTimer1Interval_ms = SENSOR_UPDATE_INTERVAL_MS; |
stefanrousseau | 3:26b3cc155f39 | 195 | OneMsTicker.attach(OneMsFunction, 0.001f) ; |
fkellermavnet | 26:8d6e7e7cdcae | 196 | |
JMF | 2:0e2ef866af95 | 197 | // Send and receive data perpetually |
JMF | 2:0e2ef866af95 | 198 | while(1) { |
stefanrousseau | 55:3abf9e3f42e6 | 199 | #ifdef USE_VIRTUAL_SENSORS |
stefanrousseau | 55:3abf9e3f42e6 | 200 | ProcessUsbInterface(); |
stefanrousseau | 55:3abf9e3f42e6 | 201 | #endif |
stefanrousseau | 3:26b3cc155f39 | 202 | if (bTimerExpiredFlag) |
stefanrousseau | 3:26b3cc155f39 | 203 | { |
stefanrousseau | 3:26b3cc155f39 | 204 | bTimerExpiredFlag = false; |
stefanrousseau | 4:f83bedd9cab4 | 205 | read_sensors(); //read available external sensors from a PMOD and the on-board motion sensor |
stefanrousseau | 3:26b3cc155f39 | 206 | char modem_string[512]; |
stefanrousseau | 3:26b3cc155f39 | 207 | GenerateModemString(&modem_string[0]); |
stefanrousseau | 61:f6b93129f954 | 208 | char myJsonResponse[512]; |
stefanrousseau | 61:f6b93129f954 | 209 | if (cell_modem_Sendreceive(&modem_string[0], &myJsonResponse[0])) |
fkellermavnet | 20:27a4f27254d0 | 210 | { |
stefanrousseau | 41:9b14c40eebf6 | 211 | if (!ledOnce) |
stefanrousseau | 41:9b14c40eebf6 | 212 | { |
stefanrousseau | 41:9b14c40eebf6 | 213 | ledOnce = 1; |
stefanrousseau | 61:f6b93129f954 | 214 | SetLedColor(0x2); //Green |
stefanrousseau | 41:9b14c40eebf6 | 215 | } |
stefanrousseau | 61:f6b93129f954 | 216 | parse_JSON(&myJsonResponse[0]); |
stefanrousseau | 16:17c5916f2d12 | 217 | } |
stefanrousseau | 3:26b3cc155f39 | 218 | } //bTimerExpiredFlag |
stefanrousseau | 3:26b3cc155f39 | 219 | } //forever loop |
JMF | 0:9d5134074d84 | 220 | } |