Azure IoT / Mbed 2 deprecated temp_sensor_anomaly

Temperature sensor anomaly IoTHub sample

Dependencies:   C12832 EthernetInterface LM75B NTPClient iothub_client iothub_http_transport mbed-rtos mbed serializer wolfSSL azure_c_shared_utility

This sample showcases the usage of Azure IoT client libraries to build an application sample that uploads temperature data and reacts to an alert for a temperature anomaly sent by a cloud service.

main.cpp@13:c5cd6fb5205b, 2015-09-29 (annotated)

Committer:
AzureIoTClient
Date:
Tue Sep 29 17:02:33 2015 -0700
Revision:
13:c5cd6fb5205b
Parent:
9:0aae2d7a398b 
v1.0.0-preview.3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AzureIoTClient 0:d6584131df08 1 // Copyright (c) Microsoft. All rights reserved.
AzureIoTClient 0:d6584131df08 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
AzureIoTClient 0:d6584131df08 3
AzureIoTClient 0:d6584131df08 4 #include <stdlib.h>
AzureIoTClient 0:d6584131df08 5 #include "EthernetInterface.h"
AzureIoTClient 0:d6584131df08 6 #include "iothubtransporthttp.h"
AzureIoTClient 0:d6584131df08 7 #include "serializer.h"
AzureIoTClient 0:d6584131df08 8 #include "schemaserializer.h"
AzureIoTClient 0:d6584131df08 9 #include "threadapi.h"
AzureIoTClient 0:d6584131df08 10 #include "C12832.h"
AzureIoTClient 0:d6584131df08 11 #include "LM75B.h"
AzureIoTClient 0:d6584131df08 12 #include "NTPClient.h"
AzureIoTClient 0:d6584131df08 13
AzureIoTClient 13:c5cd6fb5205b 14 #ifdef MBED_BUILD_TIMESTAMP
AzureIoTClient 13:c5cd6fb5205b 15 #include "certs.h"
AzureIoTClient 13:c5cd6fb5205b 16 #endif // MBED_BUILD_TIMESTAMP
AzureIoTClient 13:c5cd6fb5205b 17
AzureIoTClient 0:d6584131df08 18 C12832 lcd(D11, D13, D12, D7, D10);
AzureIoTClient 0:d6584131df08 19 LM75B sensor(D14, D15);
AzureIoTClient 0:d6584131df08 20 DigitalIn Fire(D4);
AzureIoTClient 0:d6584131df08 21 DigitalOut red_led(D5);
AzureIoTClient 0:d6584131df08 22 DigitalOut blue_led(D8);
AzureIoTClient 0:d6584131df08 23 DigitalOut green_led(D9);
AzureIoTClient 0:d6584131df08 24 PwmOut spkr(D6);
AzureIoTClient 0:d6584131df08 25 Serial pc(USBTX, USBRX);
AzureIoTClient 0:d6584131df08 26
AzureIoTClient 4:b0b512a80572 27 static const char* connectionString = "[device connection string]";
AzureIoTClient 4:b0b512a80572 28 static const char* deviceId = "[deviceName]"; /*must match the one on connectionString*/
AzureIoTClient 0:d6584131df08 29
AzureIoTClient 0:d6584131df08 30 static Timer led_timer;
AzureIoTClient 0:d6584131df08 31 static unsigned char alarm_type;
AzureIoTClient 0:d6584131df08 32 static unsigned char led_on;
AzureIoTClient 0:d6584131df08 33 static unsigned int last_alarm_time;
AzureIoTClient 0:d6584131df08 34 static unsigned int last_edge_time;
AzureIoTClient 0:d6584131df08 35 static unsigned int blink_interval;
AzureIoTClient 0:d6584131df08 36 static float temp;
AzureIoTClient 0:d6584131df08 37 static char* sensorId = NULL;
AzureIoTClient 0:d6584131df08 38
AzureIoTClient 0:d6584131df08 39 #define ALARM_NONE 0
AzureIoTClient 0:d6584131df08 40 #define ALARM_ANOMALY 1
AzureIoTClient 0:d6584131df08 41 #define ALARM_THRESHOLD 2
AzureIoTClient 0:d6584131df08 42
AzureIoTClient 0:d6584131df08 43 #define BLINK_TIME 5000 /* ms */
AzureIoTClient 0:d6584131df08 44 #define BLINK_INTERVAL_ANOMALY 250 /* ms */
AzureIoTClient 0:d6584131df08 45 #define BLINK_INTERVAL_THRESHOLD 100 /* ms */
AzureIoTClient 0:d6584131df08 46
AzureIoTClient 0:d6584131df08 47 // Define the Model
AzureIoTClient 0:d6584131df08 48 BEGIN_NAMESPACE(Contoso);
AzureIoTClient 0:d6584131df08 49
AzureIoTClient 0:d6584131df08 50 DECLARE_STRUCT(SystemProperties,
AzureIoTClient 0:d6584131df08 51 ascii_char_ptr, DeviceID,
AzureIoTClient 0:d6584131df08 52 _Bool, Enabled
AzureIoTClient 0:d6584131df08 53 );
AzureIoTClient 0:d6584131df08 54
AzureIoTClient 0:d6584131df08 55 DECLARE_MODEL(FrdmDevice,
AzureIoTClient 0:d6584131df08 56
AzureIoTClient 0:d6584131df08 57 /* Device Info - This is command metadata + some extra fields */
AzureIoTClient 0:d6584131df08 58 WITH_DATA(ascii_char_ptr, ObjectName),
AzureIoTClient 0:d6584131df08 59 WITH_DATA(ascii_char_ptr, ObjectType),
AzureIoTClient 0:d6584131df08 60 WITH_DATA(ascii_char_ptr, Version),
AzureIoTClient 0:d6584131df08 61 WITH_DATA(ascii_char_ptr, TargetAlarmDevice),
AzureIoTClient 0:d6584131df08 62 WITH_DATA(EDM_DATE_TIME_OFFSET, Time),
AzureIoTClient 0:d6584131df08 63 WITH_DATA(float, temp),
AzureIoTClient 0:d6584131df08 64 WITH_DATA(SystemProperties, SystemProperties),
AzureIoTClient 0:d6584131df08 65 WITH_DATA(ascii_char_ptr_no_quotes, Commands),
AzureIoTClient 0:d6584131df08 66
AzureIoTClient 0:d6584131df08 67 /* Commands implemented by the device */
AzureIoTClient 0:d6584131df08 68 WITH_ACTION(AlarmAnomaly, ascii_char_ptr, SensorId),
AzureIoTClient 0:d6584131df08 69 WITH_ACTION(AlarmThreshold, ascii_char_ptr, SensorId)
AzureIoTClient 0:d6584131df08 70 );
AzureIoTClient 0:d6584131df08 71
AzureIoTClient 0:d6584131df08 72 END_NAMESPACE(Contoso);
AzureIoTClient 0:d6584131df08 73
AzureIoTClient 0:d6584131df08 74 static int LED_Update_Thread(void* threadArgument)
AzureIoTClient 0:d6584131df08 75 {
AzureIoTClient 0:d6584131df08 76 unsigned char display_counter = 0;
AzureIoTClient 0:d6584131df08 77 led_timer.start();
AzureIoTClient 0:d6584131df08 78
AzureIoTClient 0:d6584131df08 79 last_alarm_time = led_timer.read_ms() - BLINK_TIME;
AzureIoTClient 0:d6584131df08 80 while (1)
AzureIoTClient 0:d6584131df08 81 {
AzureIoTClient 0:d6584131df08 82 unsigned int current_ms = led_timer.read_ms();
AzureIoTClient 0:d6584131df08 83 float new_temp_value;
AzureIoTClient 0:d6584131df08 84
AzureIoTClient 0:d6584131df08 85 if (alarm_type != ALARM_NONE)
AzureIoTClient 0:d6584131df08 86 {
AzureIoTClient 0:d6584131df08 87 if (current_ms - last_alarm_time > BLINK_TIME)
AzureIoTClient 0:d6584131df08 88 {
AzureIoTClient 0:d6584131df08 89 /* no more alarm */
AzureIoTClient 0:d6584131df08 90 alarm_type = ALARM_NONE;
AzureIoTClient 0:d6584131df08 91 free(sensorId);
AzureIoTClient 0:d6584131df08 92 sensorId = NULL;
AzureIoTClient 0:d6584131df08 93 led_on = 0;
AzureIoTClient 0:d6584131df08 94
AzureIoTClient 0:d6584131df08 95 /* reset LED and clear display and speaker */
AzureIoTClient 0:d6584131df08 96 red_led = 1;
AzureIoTClient 0:d6584131df08 97
AzureIoTClient 0:d6584131df08 98 lcd.cls();
AzureIoTClient 0:d6584131df08 99 spkr = 0.0;
AzureIoTClient 0:d6584131df08 100 }
AzureIoTClient 0:d6584131df08 101 else
AzureIoTClient 0:d6584131df08 102 {
AzureIoTClient 0:d6584131df08 103 if (current_ms - last_edge_time > blink_interval)
AzureIoTClient 0:d6584131df08 104 {
AzureIoTClient 0:d6584131df08 105 led_on = 1 - led_on;
AzureIoTClient 0:d6584131df08 106 last_edge_time = current_ms;
AzureIoTClient 0:d6584131df08 107 }
AzureIoTClient 0:d6584131df08 108
AzureIoTClient 0:d6584131df08 109 if (led_on)
AzureIoTClient 0:d6584131df08 110 {
AzureIoTClient 0:d6584131df08 111 red_led = 0;
AzureIoTClient 0:d6584131df08 112 spkr.period(1.0 / 2000.0);
AzureIoTClient 0:d6584131df08 113 spkr = 0.5;
AzureIoTClient 0:d6584131df08 114 }
AzureIoTClient 0:d6584131df08 115 else
AzureIoTClient 0:d6584131df08 116 {
AzureIoTClient 0:d6584131df08 117 red_led = 1;
AzureIoTClient 0:d6584131df08 118 spkr = 0.0;
AzureIoTClient 0:d6584131df08 119 }
AzureIoTClient 0:d6584131df08 120 }
AzureIoTClient 0:d6584131df08 121 }
AzureIoTClient 0:d6584131df08 122 else
AzureIoTClient 0:d6584131df08 123 {
AzureIoTClient 0:d6584131df08 124 /* alarm off, do nothing */
AzureIoTClient 0:d6584131df08 125 }
AzureIoTClient 0:d6584131df08 126
AzureIoTClient 0:d6584131df08 127 new_temp_value = (sensor.temp() * 9 / 5) + 32;
AzureIoTClient 0:d6584131df08 128 temp = temp + (new_temp_value - temp) / 2;
AzureIoTClient 0:d6584131df08 129
AzureIoTClient 0:d6584131df08 130 display_counter++;
AzureIoTClient 0:d6584131df08 131 if (display_counter == 80)
AzureIoTClient 0:d6584131df08 132 {
AzureIoTClient 0:d6584131df08 133 display_counter = 0;
AzureIoTClient 0:d6584131df08 134 lcd.locate(0, 3);
AzureIoTClient 0:d6584131df08 135 lcd.printf("Temp = %.1f\n", temp);
AzureIoTClient 0:d6584131df08 136 if (sensorId != NULL)
AzureIoTClient 0:d6584131df08 137 {
AzureIoTClient 0:d6584131df08 138 lcd.locate(0, 15);
AzureIoTClient 0:d6584131df08 139 lcd.printf("%s : %s", (alarm_type == ALARM_ANOMALY) ? "Anomaly" : "Thrshld", sensorId);
AzureIoTClient 0:d6584131df08 140 }
AzureIoTClient 0:d6584131df08 141 }
AzureIoTClient 0:d6584131df08 142
AzureIoTClient 0:d6584131df08 143 ThreadAPI_Sleep(10);
AzureIoTClient 0:d6584131df08 144 }
AzureIoTClient 0:d6584131df08 145
AzureIoTClient 0:d6584131df08 146 led_timer.stop();
AzureIoTClient 0:d6584131df08 147
AzureIoTClient 0:d6584131df08 148 return 0;
AzureIoTClient 0:d6584131df08 149 }
AzureIoTClient 0:d6584131df08 150
AzureIoTClient 0:d6584131df08 151 EXECUTE_COMMAND_RESULT AlarmAnomaly(FrdmDevice* frdmDevice, ascii_char_ptr SensorId)
AzureIoTClient 0:d6584131df08 152 {
AzureIoTClient 0:d6584131df08 153 size_t length;
AzureIoTClient 0:d6584131df08 154
AzureIoTClient 0:d6584131df08 155 last_alarm_time = led_timer.read_ms();
AzureIoTClient 0:d6584131df08 156 if (alarm_type != ALARM_THRESHOLD)
AzureIoTClient 0:d6584131df08 157 {
AzureIoTClient 0:d6584131df08 158 if (alarm_type == ALARM_NONE)
AzureIoTClient 0:d6584131df08 159 {
AzureIoTClient 0:d6584131df08 160 last_edge_time = last_alarm_time;
AzureIoTClient 0:d6584131df08 161 }
AzureIoTClient 0:d6584131df08 162 blink_interval = BLINK_INTERVAL_ANOMALY;
AzureIoTClient 0:d6584131df08 163 }
AzureIoTClient 0:d6584131df08 164
AzureIoTClient 0:d6584131df08 165 alarm_type = ALARM_ANOMALY;
AzureIoTClient 0:d6584131df08 166
AzureIoTClient 0:d6584131df08 167 /* clear screen */
AzureIoTClient 0:d6584131df08 168 lcd.cls();
AzureIoTClient 0:d6584131df08 169
AzureIoTClient 0:d6584131df08 170 length = strlen(SensorId);
AzureIoTClient 0:d6584131df08 171 free(sensorId);
AzureIoTClient 0:d6584131df08 172 sensorId = (char*)malloc(length + 1);
AzureIoTClient 0:d6584131df08 173 strcpy(sensorId, SensorId);
AzureIoTClient 0:d6584131df08 174 return EXECUTE_COMMAND_SUCCESS;
AzureIoTClient 0:d6584131df08 175 }
AzureIoTClient 0:d6584131df08 176
AzureIoTClient 0:d6584131df08 177 EXECUTE_COMMAND_RESULT AlarmThreshold(FrdmDevice* frdmDevice, ascii_char_ptr SensorId)
AzureIoTClient 0:d6584131df08 178 {
AzureIoTClient 0:d6584131df08 179 size_t length;
AzureIoTClient 0:d6584131df08 180
AzureIoTClient 0:d6584131df08 181 last_alarm_time = led_timer.read_ms();
AzureIoTClient 0:d6584131df08 182 if (alarm_type != ALARM_THRESHOLD)
AzureIoTClient 0:d6584131df08 183 {
AzureIoTClient 0:d6584131df08 184 last_edge_time = last_alarm_time;
AzureIoTClient 0:d6584131df08 185 }
AzureIoTClient 0:d6584131df08 186 blink_interval = BLINK_INTERVAL_THRESHOLD;
AzureIoTClient 0:d6584131df08 187 alarm_type = ALARM_THRESHOLD;
AzureIoTClient 0:d6584131df08 188
AzureIoTClient 0:d6584131df08 189 /* clear screen */
AzureIoTClient 0:d6584131df08 190 lcd.cls();
AzureIoTClient 0:d6584131df08 191
AzureIoTClient 0:d6584131df08 192 /* print ALARM */
AzureIoTClient 0:d6584131df08 193 length = strlen(SensorId);
AzureIoTClient 0:d6584131df08 194 free(sensorId);
AzureIoTClient 0:d6584131df08 195 sensorId = (char*)malloc(length + 1);
AzureIoTClient 0:d6584131df08 196 strcpy(sensorId, SensorId);
AzureIoTClient 0:d6584131df08 197 return EXECUTE_COMMAND_SUCCESS;
AzureIoTClient 0:d6584131df08 198 }
AzureIoTClient 0:d6584131df08 199
AzureIoTClient 9:0aae2d7a398b 200 /*this function "links" IoTHub to the serialization library*/
AzureIoTClient 7:f263af2427d4 201 static IOTHUBMESSAGE_DISPOSITION_RESULT IoTHubMessage(IOTHUB_MESSAGE_HANDLE message, void* userContextCallback)
AzureIoTClient 0:d6584131df08 202 {
AzureIoTClient 0:d6584131df08 203 const unsigned char* buffer;
AzureIoTClient 0:d6584131df08 204 size_t size;
AzureIoTClient 7:f263af2427d4 205 if (IoTHubMessage_GetByteArray(message, &buffer, &size) != IOTHUB_MESSAGE_OK)
AzureIoTClient 0:d6584131df08 206 {
AzureIoTClient 0:d6584131df08 207 (void)printf("unable to IoTHubMessage_GetByteArray\r\n");
AzureIoTClient 0:d6584131df08 208 }
AzureIoTClient 0:d6584131df08 209 else
AzureIoTClient 0:d6584131df08 210 {
AzureIoTClient 0:d6584131df08 211 /*buffer is not zero terminated*/
AzureIoTClient 0:d6584131df08 212 STRING_HANDLE temp = STRING_construct_n((char*)buffer, size);
AzureIoTClient 0:d6584131df08 213 if (temp == NULL)
AzureIoTClient 0:d6584131df08 214 {
AzureIoTClient 0:d6584131df08 215 (void)printf("unable to STRING_construct_n\r\n");
AzureIoTClient 0:d6584131df08 216 }
AzureIoTClient 0:d6584131df08 217 else
AzureIoTClient 0:d6584131df08 218 {
AzureIoTClient 0:d6584131df08 219 EXECUTE_COMMAND(userContextCallback, STRING_c_str(temp));
AzureIoTClient 0:d6584131df08 220 STRING_delete(temp);
AzureIoTClient 0:d6584131df08 221 }
AzureIoTClient 0:d6584131df08 222 }
AzureIoTClient 0:d6584131df08 223 return IOTHUBMESSAGE_ACCEPTED;
AzureIoTClient 0:d6584131df08 224 }
AzureIoTClient 0:d6584131df08 225
AzureIoTClient 0:d6584131df08 226 static void sendMessage(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, const unsigned char* buffer, size_t size)
AzureIoTClient 0:d6584131df08 227 {
AzureIoTClient 0:d6584131df08 228 IOTHUB_MESSAGE_HANDLE messageHandle = IoTHubMessage_CreateFromByteArray(buffer, size);
AzureIoTClient 0:d6584131df08 229 if (messageHandle == NULL)
AzureIoTClient 0:d6584131df08 230 {
AzureIoTClient 0:d6584131df08 231 (void)printf("unable to create a new IoTHubMessage\r\n");
AzureIoTClient 0:d6584131df08 232 }
AzureIoTClient 0:d6584131df08 233 else
AzureIoTClient 0:d6584131df08 234 {
AzureIoTClient 0:d6584131df08 235 if (IoTHubClient_LL_SendEventAsync(iotHubClientHandle, messageHandle, NULL, NULL) != IOTHUB_CLIENT_OK)
AzureIoTClient 0:d6584131df08 236 {
AzureIoTClient 0:d6584131df08 237 (void)printf("failed to hand over the message to IoTHubClient");
AzureIoTClient 0:d6584131df08 238 }
AzureIoTClient 0:d6584131df08 239 else
AzureIoTClient 0:d6584131df08 240 {
AzureIoTClient 0:d6584131df08 241 (void)printf("IoTHubClient accepted the message for delivery\r\n");
AzureIoTClient 0:d6584131df08 242 }
AzureIoTClient 0:d6584131df08 243 IoTHubMessage_Destroy(messageHandle);
AzureIoTClient 0:d6584131df08 244 }
AzureIoTClient 0:d6584131df08 245 }
AzureIoTClient 0:d6584131df08 246
AzureIoTClient 5:4afe2073d473 247 int setupRealTime(void)
AzureIoTClient 0:d6584131df08 248 {
AzureIoTClient 6:315d04ac34d3 249 int result;
AzureIoTClient 6:315d04ac34d3 250
AzureIoTClient 5:4afe2073d473 251 (void)printf("setupRealTime begin\r\n");
AzureIoTClient 5:4afe2073d473 252 if (EthernetInterface::connect())
AzureIoTClient 5:4afe2073d473 253 {
AzureIoTClient 5:4afe2073d473 254 (void)printf("Error initializing EthernetInterface.\r\n");
AzureIoTClient 5:4afe2073d473 255 result = __LINE__;
AzureIoTClient 5:4afe2073d473 256 }
AzureIoTClient 5:4afe2073d473 257 else
AzureIoTClient 5:4afe2073d473 258 {
AzureIoTClient 5:4afe2073d473 259 (void)printf("setupRealTime NTP begin\r\n");
AzureIoTClient 5:4afe2073d473 260 NTPClient ntp;
AzureIoTClient 5:4afe2073d473 261 if (ntp.setTime("0.pool.ntp.org") != 0)
AzureIoTClient 5:4afe2073d473 262 {
AzureIoTClient 5:4afe2073d473 263 (void)printf("Failed setting time.\r\n");
AzureIoTClient 5:4afe2073d473 264 result = __LINE__;
AzureIoTClient 5:4afe2073d473 265 }
AzureIoTClient 5:4afe2073d473 266 else
AzureIoTClient 5:4afe2073d473 267 {
AzureIoTClient 5:4afe2073d473 268 (void)printf("set time correctly!\r\n");
AzureIoTClient 5:4afe2073d473 269 result = 0;
AzureIoTClient 5:4afe2073d473 270 }
AzureIoTClient 5:4afe2073d473 271 (void)printf("setupRealTime NTP end\r\n");
AzureIoTClient 5:4afe2073d473 272 EthernetInterface::disconnect();
AzureIoTClient 5:4afe2073d473 273 }
AzureIoTClient 5:4afe2073d473 274 (void)printf("setupRealTime end\r\n");
AzureIoTClient 5:4afe2073d473 275
AzureIoTClient 5:4afe2073d473 276 return result;
AzureIoTClient 0:d6584131df08 277 }
AzureIoTClient 0:d6584131df08 278
AzureIoTClient 0:d6584131df08 279 int main(void)
AzureIoTClient 0:d6584131df08 280 {
AzureIoTClient 0:d6584131df08 281 pc.baud(115200);
AzureIoTClient 0:d6584131df08 282
AzureIoTClient 0:d6584131df08 283 THREAD_HANDLE ThreadHandle;
AzureIoTClient 0:d6584131df08 284
AzureIoTClient 0:d6584131df08 285 (void)printf("Initializing mbed specific things...\r\n");
AzureIoTClient 2:e6752ef906fc 286
AzureIoTClient 0:d6584131df08 287 (void)printf("doing a one time EthernetInterface::init();\r\n");
AzureIoTClient 2:e6752ef906fc 288 if (EthernetInterface::init() != 0)
AzureIoTClient 2:e6752ef906fc 289 {
AzureIoTClient 2:e6752ef906fc 290 (void)printf("Failed EthernetInterface::init();\r\n");
AzureIoTClient 2:e6752ef906fc 291 return -1;
AzureIoTClient 2:e6752ef906fc 292 }
AzureIoTClient 13:c5cd6fb5205b 293
AzureIoTClient 0:d6584131df08 294 (void)printf("done doing a one time EthernetInterface::init();\r\n");
AzureIoTClient 0:d6584131df08 295
AzureIoTClient 2:e6752ef906fc 296 if (setupRealTime() != 0)
AzureIoTClient 2:e6752ef906fc 297 {
AzureIoTClient 2:e6752ef906fc 298 (void)printf("Failed setting up real time clock\r\n");
AzureIoTClient 2:e6752ef906fc 299 return -1;
AzureIoTClient 2:e6752ef906fc 300 }
AzureIoTClient 0:d6584131df08 301
AzureIoTClient 0:d6584131df08 302 /* clear the LED light upon startup */
AzureIoTClient 0:d6584131df08 303 red_led = 1;
AzureIoTClient 0:d6584131df08 304 blue_led = 1;
AzureIoTClient 0:d6584131df08 305 green_led = 1;
AzureIoTClient 0:d6584131df08 306
AzureIoTClient 0:d6584131df08 307 alarm_type = ALARM_NONE;
AzureIoTClient 0:d6584131df08 308 led_on = 0;
AzureIoTClient 0:d6584131df08 309
AzureIoTClient 0:d6584131df08 310 /* clear the screen */
AzureIoTClient 0:d6584131df08 311 lcd.cls();
AzureIoTClient 0:d6584131df08 312
AzureIoTClient 0:d6584131df08 313 if (ThreadAPI_Create(&ThreadHandle, LED_Update_Thread, NULL) != THREADAPI_OK)
AzureIoTClient 0:d6584131df08 314 {
AzureIoTClient 0:d6584131df08 315 (void)printf("Error spinning LED update thread.\r\n");
AzureIoTClient 0:d6584131df08 316 return -1;
AzureIoTClient 0:d6584131df08 317 }
AzureIoTClient 0:d6584131df08 318
AzureIoTClient 0:d6584131df08 319 /* initialize the IoTHubClient */
AzureIoTClient 0:d6584131df08 320 if (serializer_init(NULL) != SERIALIZER_OK)
AzureIoTClient 0:d6584131df08 321 {
AzureIoTClient 0:d6584131df08 322 (void)printf("Failed on serializer_init\r\n");
AzureIoTClient 0:d6584131df08 323 }
AzureIoTClient 0:d6584131df08 324 else
AzureIoTClient 0:d6584131df08 325 {
AzureIoTClient 0:d6584131df08 326 /* Setup IoTHub client configuration */
AzureIoTClient 0:d6584131df08 327
AzureIoTClient 7:f263af2427d4 328 IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle = IoTHubClient_LL_CreateFromConnectionString(connectionString, HTTP_Protocol);
AzureIoTClient 0:d6584131df08 329
AzureIoTClient 0:d6584131df08 330 if (iotHubClientHandle == NULL)
AzureIoTClient 0:d6584131df08 331 {
AzureIoTClient 0:d6584131df08 332 (void)printf("Failed on IoTHubClient_Create\r\n");
AzureIoTClient 0:d6584131df08 333 }
AzureIoTClient 0:d6584131df08 334 else
AzureIoTClient 0:d6584131df08 335 {
AzureIoTClient 13:c5cd6fb5205b 336 #ifdef MBED_BUILD_TIMESTAMP
AzureIoTClient 13:c5cd6fb5205b 337 // For mbed add the certificate information
AzureIoTClient 13:c5cd6fb5205b 338 if (IoTHubClient_LL_SetOption(iotHubClientHandle, "TrustedCerts", certificates) != IOTHUB_CLIENT_OK)
AzureIoTClient 13:c5cd6fb5205b 339 {
AzureIoTClient 13:c5cd6fb5205b 340 printf("failure to set option \"TrustedCerts\"\r\n");
AzureIoTClient 13:c5cd6fb5205b 341 }
AzureIoTClient 13:c5cd6fb5205b 342 #endif // MBED_BUILD_TIMESTAMP
AzureIoTClient 13:c5cd6fb5205b 343
AzureIoTClient 0:d6584131df08 344 unsigned int minimumPollingTime = 9; /*because it can poll "after 9 seconds" polls will happen effectively at ~10 seconds*/
AzureIoTClient 0:d6584131df08 345 if (IoTHubClient_LL_SetOption(iotHubClientHandle, "MinimumPollingTime", &minimumPollingTime) != IOTHUB_CLIENT_OK)
AzureIoTClient 0:d6584131df08 346 {
AzureIoTClient 0:d6584131df08 347 printf("failure to set option \"MinimumPollingTime\"\r\n");
AzureIoTClient 0:d6584131df08 348 }
AzureIoTClient 0:d6584131df08 349
AzureIoTClient 0:d6584131df08 350 FrdmDevice* frdmDevice = CREATE_MODEL_INSTANCE(Contoso, FrdmDevice, true);
AzureIoTClient 0:d6584131df08 351 if (frdmDevice == NULL)
AzureIoTClient 0:d6584131df08 352 {
AzureIoTClient 0:d6584131df08 353 (void)printf("Failed on CREATE_MODEL_INSTANCE\r\n");
AzureIoTClient 0:d6584131df08 354 }
AzureIoTClient 0:d6584131df08 355 else
AzureIoTClient 0:d6584131df08 356 {
AzureIoTClient 7:f263af2427d4 357 IOTHUB_CLIENT_RESULT setMessageResult = IoTHubClient_LL_SetMessageCallback(iotHubClientHandle, IoTHubMessage, frdmDevice);
AzureIoTClient 7:f263af2427d4 358 if (setMessageResult != IOTHUB_CLIENT_OK)
AzureIoTClient 0:d6584131df08 359 {
AzureIoTClient 7:f263af2427d4 360 (void)printf("unable to IoTHubClient_SetMessageCallback\r\n");
AzureIoTClient 0:d6584131df08 361 }
AzureIoTClient 0:d6584131df08 362 else
AzureIoTClient 0:d6584131df08 363 {
AzureIoTClient 0:d6584131df08 364 STRING_HANDLE commandsMetadata;
AzureIoTClient 0:d6584131df08 365
AzureIoTClient 0:d6584131df08 366 temp = (sensor.temp() * 9 / 5) + 32;
AzureIoTClient 0:d6584131df08 367
AzureIoTClient 0:d6584131df08 368 /* send the device info upon startup so that the cloud app knows
AzureIoTClient 0:d6584131df08 369 what commands are available and the fact that the device is up */
AzureIoTClient 0:d6584131df08 370 frdmDevice->ObjectType = "DeviceInfo-HW";
AzureIoTClient 0:d6584131df08 371 frdmDevice->ObjectName = "An ALARM device";
AzureIoTClient 0:d6584131df08 372 frdmDevice->Version = "1.0";
AzureIoTClient 0:d6584131df08 373 frdmDevice->SystemProperties.DeviceID = (char*)deviceId;
AzureIoTClient 0:d6584131df08 374 frdmDevice->SystemProperties.Enabled = true;
AzureIoTClient 0:d6584131df08 375
AzureIoTClient 0:d6584131df08 376 /* build the description of the commands on the device */
AzureIoTClient 0:d6584131df08 377 commandsMetadata = STRING_new();
AzureIoTClient 0:d6584131df08 378 if (commandsMetadata == NULL)
AzureIoTClient 0:d6584131df08 379 {
AzureIoTClient 0:d6584131df08 380 (void)printf("Failed on creating string for commands metadata\r\n");
AzureIoTClient 0:d6584131df08 381 }
AzureIoTClient 0:d6584131df08 382 else
AzureIoTClient 0:d6584131df08 383 {
AzureIoTClient 0:d6584131df08 384 /* Serialize the commands metadata as a JSON string before sending */
AzureIoTClient 0:d6584131df08 385 if (SchemaSerializer_SerializeCommandMetadata(GET_MODEL_HANDLE(Contoso, FrdmDevice), commandsMetadata) != SCHEMA_SERIALIZER_OK)
AzureIoTClient 0:d6584131df08 386 {
AzureIoTClient 0:d6584131df08 387 (void)printf("Failed serializing commands metadata\r\n");
AzureIoTClient 0:d6584131df08 388 }
AzureIoTClient 0:d6584131df08 389 else
AzureIoTClient 0:d6584131df08 390 {
AzureIoTClient 0:d6584131df08 391 frdmDevice->Commands = (char*)STRING_c_str(commandsMetadata);
AzureIoTClient 0:d6584131df08 392
AzureIoTClient 0:d6584131df08 393 /* Send the device information and commands metadata to the cloud */
AzureIoTClient 0:d6584131df08 394 {
AzureIoTClient 0:d6584131df08 395 unsigned char* destination;
AzureIoTClient 0:d6584131df08 396 size_t destinationSize;
AzureIoTClient 0:d6584131df08 397 if (SERIALIZE(&destination, &destinationSize, frdmDevice->ObjectName, frdmDevice->ObjectType, frdmDevice->SystemProperties, frdmDevice->Version, frdmDevice->Commands) != IOT_AGENT_OK)
AzureIoTClient 0:d6584131df08 398 {
AzureIoTClient 0:d6584131df08 399 (void)printf("Failed to serialize\r\n");
AzureIoTClient 0:d6584131df08 400 }
AzureIoTClient 0:d6584131df08 401 else
AzureIoTClient 0:d6584131df08 402 {
AzureIoTClient 0:d6584131df08 403 sendMessage(iotHubClientHandle, destination, destinationSize);
AzureIoTClient 0:d6584131df08 404 free(destination);
AzureIoTClient 0:d6584131df08 405 }
AzureIoTClient 0:d6584131df08 406 }
AzureIoTClient 0:d6584131df08 407 }
AzureIoTClient 0:d6584131df08 408
AzureIoTClient 0:d6584131df08 409 STRING_delete(commandsMetadata);
AzureIoTClient 0:d6584131df08 410 }
AzureIoTClient 0:d6584131df08 411
AzureIoTClient 0:d6584131df08 412 frdmDevice->ObjectName = (ascii_char_ptr)deviceId;
AzureIoTClient 0:d6584131df08 413 frdmDevice->ObjectType = "SensorTagEvent";
AzureIoTClient 0:d6584131df08 414 frdmDevice->Version = "1.0";
AzureIoTClient 0:d6584131df08 415 frdmDevice->TargetAlarmDevice = (ascii_char_ptr)deviceId;
AzureIoTClient 0:d6584131df08 416
AzureIoTClient 0:d6584131df08 417 while (1)
AzureIoTClient 0:d6584131df08 418 {
AzureIoTClient 0:d6584131df08 419 unsigned char* destination;
AzureIoTClient 0:d6584131df08 420 size_t destinationSize;
AzureIoTClient 0:d6584131df08 421
AzureIoTClient 0:d6584131df08 422 (void)printf("Sending %.02f\r\n", temp);
AzureIoTClient 0:d6584131df08 423 frdmDevice->temp = temp;
AzureIoTClient 0:d6584131df08 424
AzureIoTClient 0:d6584131df08 425 if (SERIALIZE(&destination, &destinationSize, frdmDevice->ObjectName, frdmDevice->ObjectType, frdmDevice->Version, frdmDevice->TargetAlarmDevice, frdmDevice->temp) != IOT_AGENT_OK)
AzureIoTClient 0:d6584131df08 426 {
AzureIoTClient 0:d6584131df08 427 (void)printf("Failed to serialize\r\n");
AzureIoTClient 0:d6584131df08 428 }
AzureIoTClient 0:d6584131df08 429 else
AzureIoTClient 0:d6584131df08 430 {
AzureIoTClient 0:d6584131df08 431 sendMessage(iotHubClientHandle, destination, destinationSize);
AzureIoTClient 0:d6584131df08 432 free(destination);
AzureIoTClient 0:d6584131df08 433 }
AzureIoTClient 0:d6584131df08 434
AzureIoTClient 0:d6584131df08 435 /* schedule IoTHubClient to send events/receive commands */
AzureIoTClient 0:d6584131df08 436 IoTHubClient_LL_DoWork(iotHubClientHandle);
AzureIoTClient 0:d6584131df08 437 }
AzureIoTClient 0:d6584131df08 438 }
AzureIoTClient 0:d6584131df08 439 DESTROY_MODEL_INSTANCE(frdmDevice);
AzureIoTClient 0:d6584131df08 440 }
AzureIoTClient 0:d6584131df08 441 IoTHubClient_LL_Destroy(iotHubClientHandle);
AzureIoTClient 0:d6584131df08 442 }
AzureIoTClient 0:d6584131df08 443 serializer_deinit();
AzureIoTClient 0:d6584131df08 444 }
AzureIoTClient 13:c5cd6fb5205b 445
AzureIoTClient 13:c5cd6fb5205b 446 EthernetInterface::disconnect();
AzureIoTClient 0:d6584131df08 447 }