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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@2:e6752ef906fc, 2015-09-16 (annotated)
- Committer:
- AzureIoTClient
- Date:
- Wed Sep 16 22:43:33 2015 -0700
- Revision:
- 2:e6752ef906fc
- Parent:
- 0:d6584131df08
- Child:
- 4:b0b512a80572
New release
Who changed what in which revision?
User | Revision | Line number | New 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 | 0:d6584131df08 | 14 | C12832 lcd(D11, D13, D12, D7, D10); |
AzureIoTClient | 0:d6584131df08 | 15 | LM75B sensor(D14, D15); |
AzureIoTClient | 0:d6584131df08 | 16 | DigitalIn Fire(D4); |
AzureIoTClient | 0:d6584131df08 | 17 | DigitalOut red_led(D5); |
AzureIoTClient | 0:d6584131df08 | 18 | DigitalOut blue_led(D8); |
AzureIoTClient | 0:d6584131df08 | 19 | DigitalOut green_led(D9); |
AzureIoTClient | 0:d6584131df08 | 20 | PwmOut spkr(D6); |
AzureIoTClient | 0:d6584131df08 | 21 | Serial pc(USBTX, USBRX); |
AzureIoTClient | 0:d6584131df08 | 22 | |
AzureIoTClient | 0:d6584131df08 | 23 | static const char* connectionString = "HostName=..."; |
AzureIoTClient | 0:d6584131df08 | 24 | static const char* deviceId = "<<deviceName>>"; /*must match the one on connectionString*/ |
AzureIoTClient | 0:d6584131df08 | 25 | |
AzureIoTClient | 0:d6584131df08 | 26 | static Timer led_timer; |
AzureIoTClient | 0:d6584131df08 | 27 | static unsigned char alarm_type; |
AzureIoTClient | 0:d6584131df08 | 28 | static unsigned char led_on; |
AzureIoTClient | 0:d6584131df08 | 29 | static unsigned int last_alarm_time; |
AzureIoTClient | 0:d6584131df08 | 30 | static unsigned int last_edge_time; |
AzureIoTClient | 0:d6584131df08 | 31 | static unsigned int blink_interval; |
AzureIoTClient | 0:d6584131df08 | 32 | static float temp; |
AzureIoTClient | 0:d6584131df08 | 33 | static char* sensorId = NULL; |
AzureIoTClient | 0:d6584131df08 | 34 | |
AzureIoTClient | 0:d6584131df08 | 35 | #define ALARM_NONE 0 |
AzureIoTClient | 0:d6584131df08 | 36 | #define ALARM_ANOMALY 1 |
AzureIoTClient | 0:d6584131df08 | 37 | #define ALARM_THRESHOLD 2 |
AzureIoTClient | 0:d6584131df08 | 38 | |
AzureIoTClient | 0:d6584131df08 | 39 | #define BLINK_TIME 5000 /* ms */ |
AzureIoTClient | 0:d6584131df08 | 40 | #define BLINK_INTERVAL_ANOMALY 250 /* ms */ |
AzureIoTClient | 0:d6584131df08 | 41 | #define BLINK_INTERVAL_THRESHOLD 100 /* ms */ |
AzureIoTClient | 0:d6584131df08 | 42 | |
AzureIoTClient | 0:d6584131df08 | 43 | // Define the Model |
AzureIoTClient | 0:d6584131df08 | 44 | BEGIN_NAMESPACE(Contoso); |
AzureIoTClient | 0:d6584131df08 | 45 | |
AzureIoTClient | 0:d6584131df08 | 46 | DECLARE_STRUCT(SystemProperties, |
AzureIoTClient | 0:d6584131df08 | 47 | ascii_char_ptr, DeviceID, |
AzureIoTClient | 0:d6584131df08 | 48 | _Bool, Enabled |
AzureIoTClient | 0:d6584131df08 | 49 | ); |
AzureIoTClient | 0:d6584131df08 | 50 | |
AzureIoTClient | 0:d6584131df08 | 51 | DECLARE_MODEL(FrdmDevice, |
AzureIoTClient | 0:d6584131df08 | 52 | |
AzureIoTClient | 0:d6584131df08 | 53 | /* Device Info - This is command metadata + some extra fields */ |
AzureIoTClient | 0:d6584131df08 | 54 | WITH_DATA(ascii_char_ptr, ObjectName), |
AzureIoTClient | 0:d6584131df08 | 55 | WITH_DATA(ascii_char_ptr, ObjectType), |
AzureIoTClient | 0:d6584131df08 | 56 | WITH_DATA(ascii_char_ptr, Version), |
AzureIoTClient | 0:d6584131df08 | 57 | WITH_DATA(ascii_char_ptr, TargetAlarmDevice), |
AzureIoTClient | 0:d6584131df08 | 58 | WITH_DATA(EDM_DATE_TIME_OFFSET, Time), |
AzureIoTClient | 0:d6584131df08 | 59 | WITH_DATA(float, temp), |
AzureIoTClient | 0:d6584131df08 | 60 | WITH_DATA(SystemProperties, SystemProperties), |
AzureIoTClient | 0:d6584131df08 | 61 | WITH_DATA(ascii_char_ptr_no_quotes, Commands), |
AzureIoTClient | 0:d6584131df08 | 62 | |
AzureIoTClient | 0:d6584131df08 | 63 | /* Commands implemented by the device */ |
AzureIoTClient | 0:d6584131df08 | 64 | WITH_ACTION(AlarmAnomaly, ascii_char_ptr, SensorId), |
AzureIoTClient | 0:d6584131df08 | 65 | WITH_ACTION(AlarmThreshold, ascii_char_ptr, SensorId) |
AzureIoTClient | 0:d6584131df08 | 66 | ); |
AzureIoTClient | 0:d6584131df08 | 67 | |
AzureIoTClient | 0:d6584131df08 | 68 | END_NAMESPACE(Contoso); |
AzureIoTClient | 0:d6584131df08 | 69 | |
AzureIoTClient | 0:d6584131df08 | 70 | static int LED_Update_Thread(void* threadArgument) |
AzureIoTClient | 0:d6584131df08 | 71 | { |
AzureIoTClient | 0:d6584131df08 | 72 | unsigned char display_counter = 0; |
AzureIoTClient | 0:d6584131df08 | 73 | led_timer.start(); |
AzureIoTClient | 0:d6584131df08 | 74 | |
AzureIoTClient | 0:d6584131df08 | 75 | last_alarm_time = led_timer.read_ms() - BLINK_TIME; |
AzureIoTClient | 0:d6584131df08 | 76 | while (1) |
AzureIoTClient | 0:d6584131df08 | 77 | { |
AzureIoTClient | 0:d6584131df08 | 78 | unsigned int current_ms = led_timer.read_ms(); |
AzureIoTClient | 0:d6584131df08 | 79 | float new_temp_value; |
AzureIoTClient | 0:d6584131df08 | 80 | |
AzureIoTClient | 0:d6584131df08 | 81 | if (alarm_type != ALARM_NONE) |
AzureIoTClient | 0:d6584131df08 | 82 | { |
AzureIoTClient | 0:d6584131df08 | 83 | if (current_ms - last_alarm_time > BLINK_TIME) |
AzureIoTClient | 0:d6584131df08 | 84 | { |
AzureIoTClient | 0:d6584131df08 | 85 | /* no more alarm */ |
AzureIoTClient | 0:d6584131df08 | 86 | alarm_type = ALARM_NONE; |
AzureIoTClient | 0:d6584131df08 | 87 | free(sensorId); |
AzureIoTClient | 0:d6584131df08 | 88 | sensorId = NULL; |
AzureIoTClient | 0:d6584131df08 | 89 | led_on = 0; |
AzureIoTClient | 0:d6584131df08 | 90 | |
AzureIoTClient | 0:d6584131df08 | 91 | /* reset LED and clear display and speaker */ |
AzureIoTClient | 0:d6584131df08 | 92 | red_led = 1; |
AzureIoTClient | 0:d6584131df08 | 93 | |
AzureIoTClient | 0:d6584131df08 | 94 | lcd.cls(); |
AzureIoTClient | 0:d6584131df08 | 95 | spkr = 0.0; |
AzureIoTClient | 0:d6584131df08 | 96 | } |
AzureIoTClient | 0:d6584131df08 | 97 | else |
AzureIoTClient | 0:d6584131df08 | 98 | { |
AzureIoTClient | 0:d6584131df08 | 99 | if (current_ms - last_edge_time > blink_interval) |
AzureIoTClient | 0:d6584131df08 | 100 | { |
AzureIoTClient | 0:d6584131df08 | 101 | led_on = 1 - led_on; |
AzureIoTClient | 0:d6584131df08 | 102 | last_edge_time = current_ms; |
AzureIoTClient | 0:d6584131df08 | 103 | } |
AzureIoTClient | 0:d6584131df08 | 104 | |
AzureIoTClient | 0:d6584131df08 | 105 | if (led_on) |
AzureIoTClient | 0:d6584131df08 | 106 | { |
AzureIoTClient | 0:d6584131df08 | 107 | red_led = 0; |
AzureIoTClient | 0:d6584131df08 | 108 | spkr.period(1.0 / 2000.0); |
AzureIoTClient | 0:d6584131df08 | 109 | spkr = 0.5; |
AzureIoTClient | 0:d6584131df08 | 110 | } |
AzureIoTClient | 0:d6584131df08 | 111 | else |
AzureIoTClient | 0:d6584131df08 | 112 | { |
AzureIoTClient | 0:d6584131df08 | 113 | red_led = 1; |
AzureIoTClient | 0:d6584131df08 | 114 | spkr = 0.0; |
AzureIoTClient | 0:d6584131df08 | 115 | } |
AzureIoTClient | 0:d6584131df08 | 116 | } |
AzureIoTClient | 0:d6584131df08 | 117 | } |
AzureIoTClient | 0:d6584131df08 | 118 | else |
AzureIoTClient | 0:d6584131df08 | 119 | { |
AzureIoTClient | 0:d6584131df08 | 120 | /* alarm off, do nothing */ |
AzureIoTClient | 0:d6584131df08 | 121 | } |
AzureIoTClient | 0:d6584131df08 | 122 | |
AzureIoTClient | 0:d6584131df08 | 123 | new_temp_value = (sensor.temp() * 9 / 5) + 32; |
AzureIoTClient | 0:d6584131df08 | 124 | temp = temp + (new_temp_value - temp) / 2; |
AzureIoTClient | 0:d6584131df08 | 125 | |
AzureIoTClient | 0:d6584131df08 | 126 | display_counter++; |
AzureIoTClient | 0:d6584131df08 | 127 | if (display_counter == 80) |
AzureIoTClient | 0:d6584131df08 | 128 | { |
AzureIoTClient | 0:d6584131df08 | 129 | display_counter = 0; |
AzureIoTClient | 0:d6584131df08 | 130 | lcd.locate(0, 3); |
AzureIoTClient | 0:d6584131df08 | 131 | lcd.printf("Temp = %.1f\n", temp); |
AzureIoTClient | 0:d6584131df08 | 132 | if (sensorId != NULL) |
AzureIoTClient | 0:d6584131df08 | 133 | { |
AzureIoTClient | 0:d6584131df08 | 134 | lcd.locate(0, 15); |
AzureIoTClient | 0:d6584131df08 | 135 | lcd.printf("%s : %s", (alarm_type == ALARM_ANOMALY) ? "Anomaly" : "Thrshld", sensorId); |
AzureIoTClient | 0:d6584131df08 | 136 | } |
AzureIoTClient | 0:d6584131df08 | 137 | } |
AzureIoTClient | 0:d6584131df08 | 138 | |
AzureIoTClient | 0:d6584131df08 | 139 | ThreadAPI_Sleep(10); |
AzureIoTClient | 0:d6584131df08 | 140 | } |
AzureIoTClient | 0:d6584131df08 | 141 | |
AzureIoTClient | 0:d6584131df08 | 142 | led_timer.stop(); |
AzureIoTClient | 0:d6584131df08 | 143 | |
AzureIoTClient | 0:d6584131df08 | 144 | return 0; |
AzureIoTClient | 0:d6584131df08 | 145 | } |
AzureIoTClient | 0:d6584131df08 | 146 | |
AzureIoTClient | 0:d6584131df08 | 147 | EXECUTE_COMMAND_RESULT AlarmAnomaly(FrdmDevice* frdmDevice, ascii_char_ptr SensorId) |
AzureIoTClient | 0:d6584131df08 | 148 | { |
AzureIoTClient | 0:d6584131df08 | 149 | size_t length; |
AzureIoTClient | 0:d6584131df08 | 150 | |
AzureIoTClient | 0:d6584131df08 | 151 | last_alarm_time = led_timer.read_ms(); |
AzureIoTClient | 0:d6584131df08 | 152 | if (alarm_type != ALARM_THRESHOLD) |
AzureIoTClient | 0:d6584131df08 | 153 | { |
AzureIoTClient | 0:d6584131df08 | 154 | if (alarm_type == ALARM_NONE) |
AzureIoTClient | 0:d6584131df08 | 155 | { |
AzureIoTClient | 0:d6584131df08 | 156 | last_edge_time = last_alarm_time; |
AzureIoTClient | 0:d6584131df08 | 157 | } |
AzureIoTClient | 0:d6584131df08 | 158 | blink_interval = BLINK_INTERVAL_ANOMALY; |
AzureIoTClient | 0:d6584131df08 | 159 | } |
AzureIoTClient | 0:d6584131df08 | 160 | |
AzureIoTClient | 0:d6584131df08 | 161 | alarm_type = ALARM_ANOMALY; |
AzureIoTClient | 0:d6584131df08 | 162 | |
AzureIoTClient | 0:d6584131df08 | 163 | /* clear screen */ |
AzureIoTClient | 0:d6584131df08 | 164 | lcd.cls(); |
AzureIoTClient | 0:d6584131df08 | 165 | |
AzureIoTClient | 0:d6584131df08 | 166 | length = strlen(SensorId); |
AzureIoTClient | 0:d6584131df08 | 167 | free(sensorId); |
AzureIoTClient | 0:d6584131df08 | 168 | sensorId = (char*)malloc(length + 1); |
AzureIoTClient | 0:d6584131df08 | 169 | strcpy(sensorId, SensorId); |
AzureIoTClient | 0:d6584131df08 | 170 | return EXECUTE_COMMAND_SUCCESS; |
AzureIoTClient | 0:d6584131df08 | 171 | } |
AzureIoTClient | 0:d6584131df08 | 172 | |
AzureIoTClient | 0:d6584131df08 | 173 | EXECUTE_COMMAND_RESULT AlarmThreshold(FrdmDevice* frdmDevice, ascii_char_ptr SensorId) |
AzureIoTClient | 0:d6584131df08 | 174 | { |
AzureIoTClient | 0:d6584131df08 | 175 | size_t length; |
AzureIoTClient | 0:d6584131df08 | 176 | |
AzureIoTClient | 0:d6584131df08 | 177 | last_alarm_time = led_timer.read_ms(); |
AzureIoTClient | 0:d6584131df08 | 178 | if (alarm_type != ALARM_THRESHOLD) |
AzureIoTClient | 0:d6584131df08 | 179 | { |
AzureIoTClient | 0:d6584131df08 | 180 | last_edge_time = last_alarm_time; |
AzureIoTClient | 0:d6584131df08 | 181 | } |
AzureIoTClient | 0:d6584131df08 | 182 | blink_interval = BLINK_INTERVAL_THRESHOLD; |
AzureIoTClient | 0:d6584131df08 | 183 | alarm_type = ALARM_THRESHOLD; |
AzureIoTClient | 0:d6584131df08 | 184 | |
AzureIoTClient | 0:d6584131df08 | 185 | /* clear screen */ |
AzureIoTClient | 0:d6584131df08 | 186 | lcd.cls(); |
AzureIoTClient | 0:d6584131df08 | 187 | |
AzureIoTClient | 0:d6584131df08 | 188 | /* print ALARM */ |
AzureIoTClient | 0:d6584131df08 | 189 | length = strlen(SensorId); |
AzureIoTClient | 0:d6584131df08 | 190 | free(sensorId); |
AzureIoTClient | 0:d6584131df08 | 191 | sensorId = (char*)malloc(length + 1); |
AzureIoTClient | 0:d6584131df08 | 192 | strcpy(sensorId, SensorId); |
AzureIoTClient | 0:d6584131df08 | 193 | return EXECUTE_COMMAND_SUCCESS; |
AzureIoTClient | 0:d6584131df08 | 194 | } |
AzureIoTClient | 0:d6584131df08 | 195 | |
AzureIoTClient | 0:d6584131df08 | 196 | /*this functiuon "links" IoTHub to the serialization library*/ |
AzureIoTClient | 0:d6584131df08 | 197 | static IOTHUBMESSAGE_DISPOSITION_RESULT IoTHubNotification(IOTHUB_MESSAGE_HANDLE notificationMessage, void* userContextCallback) |
AzureIoTClient | 0:d6584131df08 | 198 | { |
AzureIoTClient | 0:d6584131df08 | 199 | const unsigned char* buffer; |
AzureIoTClient | 0:d6584131df08 | 200 | size_t size; |
AzureIoTClient | 0:d6584131df08 | 201 | if (IoTHubMessage_GetByteArray(notificationMessage, &buffer, &size) != IOTHUB_MESSAGE_OK) |
AzureIoTClient | 0:d6584131df08 | 202 | { |
AzureIoTClient | 0:d6584131df08 | 203 | (void)printf("unable to IoTHubMessage_GetByteArray\r\n"); |
AzureIoTClient | 0:d6584131df08 | 204 | } |
AzureIoTClient | 0:d6584131df08 | 205 | else |
AzureIoTClient | 0:d6584131df08 | 206 | { |
AzureIoTClient | 0:d6584131df08 | 207 | /*buffer is not zero terminated*/ |
AzureIoTClient | 0:d6584131df08 | 208 | STRING_HANDLE temp = STRING_construct_n((char*)buffer, size); |
AzureIoTClient | 0:d6584131df08 | 209 | if (temp == NULL) |
AzureIoTClient | 0:d6584131df08 | 210 | { |
AzureIoTClient | 0:d6584131df08 | 211 | (void)printf("unable to STRING_construct_n\r\n"); |
AzureIoTClient | 0:d6584131df08 | 212 | } |
AzureIoTClient | 0:d6584131df08 | 213 | else |
AzureIoTClient | 0:d6584131df08 | 214 | { |
AzureIoTClient | 0:d6584131df08 | 215 | EXECUTE_COMMAND(userContextCallback, STRING_c_str(temp)); |
AzureIoTClient | 0:d6584131df08 | 216 | STRING_delete(temp); |
AzureIoTClient | 0:d6584131df08 | 217 | } |
AzureIoTClient | 0:d6584131df08 | 218 | } |
AzureIoTClient | 0:d6584131df08 | 219 | return IOTHUBMESSAGE_ACCEPTED; |
AzureIoTClient | 0:d6584131df08 | 220 | } |
AzureIoTClient | 0:d6584131df08 | 221 | |
AzureIoTClient | 0:d6584131df08 | 222 | static void sendMessage(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, const unsigned char* buffer, size_t size) |
AzureIoTClient | 0:d6584131df08 | 223 | { |
AzureIoTClient | 0:d6584131df08 | 224 | IOTHUB_MESSAGE_HANDLE messageHandle = IoTHubMessage_CreateFromByteArray(buffer, size); |
AzureIoTClient | 0:d6584131df08 | 225 | if (messageHandle == NULL) |
AzureIoTClient | 0:d6584131df08 | 226 | { |
AzureIoTClient | 0:d6584131df08 | 227 | (void)printf("unable to create a new IoTHubMessage\r\n"); |
AzureIoTClient | 0:d6584131df08 | 228 | } |
AzureIoTClient | 0:d6584131df08 | 229 | else |
AzureIoTClient | 0:d6584131df08 | 230 | { |
AzureIoTClient | 0:d6584131df08 | 231 | if (IoTHubClient_LL_SendEventAsync(iotHubClientHandle, messageHandle, NULL, NULL) != IOTHUB_CLIENT_OK) |
AzureIoTClient | 0:d6584131df08 | 232 | { |
AzureIoTClient | 0:d6584131df08 | 233 | (void)printf("failed to hand over the message to IoTHubClient"); |
AzureIoTClient | 0:d6584131df08 | 234 | } |
AzureIoTClient | 0:d6584131df08 | 235 | else |
AzureIoTClient | 0:d6584131df08 | 236 | { |
AzureIoTClient | 0:d6584131df08 | 237 | (void)printf("IoTHubClient accepted the message for delivery\r\n"); |
AzureIoTClient | 0:d6584131df08 | 238 | } |
AzureIoTClient | 0:d6584131df08 | 239 | IoTHubMessage_Destroy(messageHandle); |
AzureIoTClient | 0:d6584131df08 | 240 | } |
AzureIoTClient | 0:d6584131df08 | 241 | } |
AzureIoTClient | 0:d6584131df08 | 242 | |
AzureIoTClient | 0:d6584131df08 | 243 | |
AzureIoTClient | 0:d6584131df08 | 244 | void setupRealTime(void) |
AzureIoTClient | 0:d6584131df08 | 245 | { |
AzureIoTClient | 0:d6584131df08 | 246 | (void)printf("setupRealTime begin\r\n"); |
AzureIoTClient | 0:d6584131df08 | 247 | if (EthernetInterface::connect()) |
AzureIoTClient | 0:d6584131df08 | 248 | { |
AzureIoTClient | 0:d6584131df08 | 249 | (void)printf("Error initializing EthernetInterface.\r\n"); |
AzureIoTClient | 0:d6584131df08 | 250 | } |
AzureIoTClient | 0:d6584131df08 | 251 | else |
AzureIoTClient | 0:d6584131df08 | 252 | { |
AzureIoTClient | 0:d6584131df08 | 253 | (void)printf("setupRealTime NTP begin\r\n"); |
AzureIoTClient | 0:d6584131df08 | 254 | NTPClient ntp; |
AzureIoTClient | 0:d6584131df08 | 255 | if (ntp.setTime("0.pool.ntp.org") != 0) |
AzureIoTClient | 0:d6584131df08 | 256 | { |
AzureIoTClient | 0:d6584131df08 | 257 | (void)printf("Failed setting time.\r\n"); |
AzureIoTClient | 0:d6584131df08 | 258 | } |
AzureIoTClient | 0:d6584131df08 | 259 | else |
AzureIoTClient | 0:d6584131df08 | 260 | { |
AzureIoTClient | 0:d6584131df08 | 261 | (void)printf("set time correctly!\r\n"); |
AzureIoTClient | 0:d6584131df08 | 262 | } |
AzureIoTClient | 0:d6584131df08 | 263 | (void)printf("setupRealTime NTP end\r\n"); |
AzureIoTClient | 0:d6584131df08 | 264 | EthernetInterface::disconnect(); |
AzureIoTClient | 0:d6584131df08 | 265 | } |
AzureIoTClient | 0:d6584131df08 | 266 | (void)printf("setupRealTime end\r\n"); |
AzureIoTClient | 0:d6584131df08 | 267 | } |
AzureIoTClient | 0:d6584131df08 | 268 | |
AzureIoTClient | 0:d6584131df08 | 269 | int main(void) |
AzureIoTClient | 0:d6584131df08 | 270 | { |
AzureIoTClient | 0:d6584131df08 | 271 | pc.baud(115200); |
AzureIoTClient | 0:d6584131df08 | 272 | |
AzureIoTClient | 0:d6584131df08 | 273 | THREAD_HANDLE ThreadHandle; |
AzureIoTClient | 0:d6584131df08 | 274 | |
AzureIoTClient | 0:d6584131df08 | 275 | (void)printf("Initializing mbed specific things...\r\n"); |
AzureIoTClient | 2:e6752ef906fc | 276 | |
AzureIoTClient | 0:d6584131df08 | 277 | (void)printf("doing a one time EthernetInterface::init();\r\n"); |
AzureIoTClient | 2:e6752ef906fc | 278 | if (EthernetInterface::init() != 0) |
AzureIoTClient | 2:e6752ef906fc | 279 | { |
AzureIoTClient | 2:e6752ef906fc | 280 | (void)printf("Failed EthernetInterface::init();\r\n"); |
AzureIoTClient | 2:e6752ef906fc | 281 | return -1; |
AzureIoTClient | 2:e6752ef906fc | 282 | } |
AzureIoTClient | 0:d6584131df08 | 283 | (void)printf("done doing a one time EthernetInterface::init();\r\n"); |
AzureIoTClient | 0:d6584131df08 | 284 | |
AzureIoTClient | 2:e6752ef906fc | 285 | if (setupRealTime() != 0) |
AzureIoTClient | 2:e6752ef906fc | 286 | { |
AzureIoTClient | 2:e6752ef906fc | 287 | (void)printf("Failed setting up real time clock\r\n"); |
AzureIoTClient | 2:e6752ef906fc | 288 | return -1; |
AzureIoTClient | 2:e6752ef906fc | 289 | } |
AzureIoTClient | 0:d6584131df08 | 290 | |
AzureIoTClient | 0:d6584131df08 | 291 | /* clear the LED light upon startup */ |
AzureIoTClient | 0:d6584131df08 | 292 | red_led = 1; |
AzureIoTClient | 0:d6584131df08 | 293 | blue_led = 1; |
AzureIoTClient | 0:d6584131df08 | 294 | green_led = 1; |
AzureIoTClient | 0:d6584131df08 | 295 | |
AzureIoTClient | 0:d6584131df08 | 296 | alarm_type = ALARM_NONE; |
AzureIoTClient | 0:d6584131df08 | 297 | led_on = 0; |
AzureIoTClient | 0:d6584131df08 | 298 | |
AzureIoTClient | 0:d6584131df08 | 299 | /* clear the screen */ |
AzureIoTClient | 0:d6584131df08 | 300 | lcd.cls(); |
AzureIoTClient | 0:d6584131df08 | 301 | |
AzureIoTClient | 0:d6584131df08 | 302 | if (ThreadAPI_Create(&ThreadHandle, LED_Update_Thread, NULL) != THREADAPI_OK) |
AzureIoTClient | 0:d6584131df08 | 303 | { |
AzureIoTClient | 0:d6584131df08 | 304 | (void)printf("Error spinning LED update thread.\r\n"); |
AzureIoTClient | 0:d6584131df08 | 305 | return -1; |
AzureIoTClient | 0:d6584131df08 | 306 | } |
AzureIoTClient | 0:d6584131df08 | 307 | |
AzureIoTClient | 0:d6584131df08 | 308 | /* initialize the IoTHubClient */ |
AzureIoTClient | 0:d6584131df08 | 309 | if (serializer_init(NULL) != SERIALIZER_OK) |
AzureIoTClient | 0:d6584131df08 | 310 | { |
AzureIoTClient | 0:d6584131df08 | 311 | (void)printf("Failed on serializer_init\r\n"); |
AzureIoTClient | 0:d6584131df08 | 312 | } |
AzureIoTClient | 0:d6584131df08 | 313 | else |
AzureIoTClient | 0:d6584131df08 | 314 | { |
AzureIoTClient | 0:d6584131df08 | 315 | /* Setup IoTHub client configuration */ |
AzureIoTClient | 0:d6584131df08 | 316 | |
AzureIoTClient | 0:d6584131df08 | 317 | IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle = IoTHubClient_LL_CreateFromConnectionString(connectionString, IoTHubTransportHttp_ProvideTransportInterface); |
AzureIoTClient | 0:d6584131df08 | 318 | |
AzureIoTClient | 0:d6584131df08 | 319 | if (iotHubClientHandle == NULL) |
AzureIoTClient | 0:d6584131df08 | 320 | { |
AzureIoTClient | 0:d6584131df08 | 321 | (void)printf("Failed on IoTHubClient_Create\r\n"); |
AzureIoTClient | 0:d6584131df08 | 322 | } |
AzureIoTClient | 0:d6584131df08 | 323 | else |
AzureIoTClient | 0:d6584131df08 | 324 | { |
AzureIoTClient | 0:d6584131df08 | 325 | unsigned int minimumPollingTime = 9; /*because it can poll "after 9 seconds" polls will happen effectively at ~10 seconds*/ |
AzureIoTClient | 0:d6584131df08 | 326 | if (IoTHubClient_LL_SetOption(iotHubClientHandle, "MinimumPollingTime", &minimumPollingTime) != IOTHUB_CLIENT_OK) |
AzureIoTClient | 0:d6584131df08 | 327 | { |
AzureIoTClient | 0:d6584131df08 | 328 | printf("failure to set option \"MinimumPollingTime\"\r\n"); |
AzureIoTClient | 0:d6584131df08 | 329 | } |
AzureIoTClient | 0:d6584131df08 | 330 | |
AzureIoTClient | 0:d6584131df08 | 331 | FrdmDevice* frdmDevice = CREATE_MODEL_INSTANCE(Contoso, FrdmDevice, true); |
AzureIoTClient | 0:d6584131df08 | 332 | if (frdmDevice == NULL) |
AzureIoTClient | 0:d6584131df08 | 333 | { |
AzureIoTClient | 0:d6584131df08 | 334 | (void)printf("Failed on CREATE_MODEL_INSTANCE\r\n"); |
AzureIoTClient | 0:d6584131df08 | 335 | } |
AzureIoTClient | 0:d6584131df08 | 336 | else |
AzureIoTClient | 0:d6584131df08 | 337 | { |
AzureIoTClient | 0:d6584131df08 | 338 | IOTHUB_CLIENT_RESULT setNotificationResult = IoTHubClient_LL_SetNotificationCallback(iotHubClientHandle, IoTHubNotification, frdmDevice); |
AzureIoTClient | 0:d6584131df08 | 339 | if (setNotificationResult != IOTHUB_CLIENT_OK) |
AzureIoTClient | 0:d6584131df08 | 340 | { |
AzureIoTClient | 0:d6584131df08 | 341 | (void)printf("unable to IoTHubClient_SetNotificationCallback\r\n"); |
AzureIoTClient | 0:d6584131df08 | 342 | } |
AzureIoTClient | 0:d6584131df08 | 343 | else |
AzureIoTClient | 0:d6584131df08 | 344 | { |
AzureIoTClient | 0:d6584131df08 | 345 | STRING_HANDLE commandsMetadata; |
AzureIoTClient | 0:d6584131df08 | 346 | |
AzureIoTClient | 0:d6584131df08 | 347 | temp = (sensor.temp() * 9 / 5) + 32; |
AzureIoTClient | 0:d6584131df08 | 348 | |
AzureIoTClient | 0:d6584131df08 | 349 | /* send the device info upon startup so that the cloud app knows |
AzureIoTClient | 0:d6584131df08 | 350 | what commands are available and the fact that the device is up */ |
AzureIoTClient | 0:d6584131df08 | 351 | frdmDevice->ObjectType = "DeviceInfo-HW"; |
AzureIoTClient | 0:d6584131df08 | 352 | frdmDevice->ObjectName = "An ALARM device"; |
AzureIoTClient | 0:d6584131df08 | 353 | frdmDevice->Version = "1.0"; |
AzureIoTClient | 0:d6584131df08 | 354 | frdmDevice->SystemProperties.DeviceID = (char*)deviceId; |
AzureIoTClient | 0:d6584131df08 | 355 | frdmDevice->SystemProperties.Enabled = true; |
AzureIoTClient | 0:d6584131df08 | 356 | |
AzureIoTClient | 0:d6584131df08 | 357 | /* build the description of the commands on the device */ |
AzureIoTClient | 0:d6584131df08 | 358 | commandsMetadata = STRING_new(); |
AzureIoTClient | 0:d6584131df08 | 359 | if (commandsMetadata == NULL) |
AzureIoTClient | 0:d6584131df08 | 360 | { |
AzureIoTClient | 0:d6584131df08 | 361 | (void)printf("Failed on creating string for commands metadata\r\n"); |
AzureIoTClient | 0:d6584131df08 | 362 | } |
AzureIoTClient | 0:d6584131df08 | 363 | else |
AzureIoTClient | 0:d6584131df08 | 364 | { |
AzureIoTClient | 0:d6584131df08 | 365 | /* Serialize the commands metadata as a JSON string before sending */ |
AzureIoTClient | 0:d6584131df08 | 366 | if (SchemaSerializer_SerializeCommandMetadata(GET_MODEL_HANDLE(Contoso, FrdmDevice), commandsMetadata) != SCHEMA_SERIALIZER_OK) |
AzureIoTClient | 0:d6584131df08 | 367 | { |
AzureIoTClient | 0:d6584131df08 | 368 | (void)printf("Failed serializing commands metadata\r\n"); |
AzureIoTClient | 0:d6584131df08 | 369 | } |
AzureIoTClient | 0:d6584131df08 | 370 | else |
AzureIoTClient | 0:d6584131df08 | 371 | { |
AzureIoTClient | 0:d6584131df08 | 372 | frdmDevice->Commands = (char*)STRING_c_str(commandsMetadata); |
AzureIoTClient | 0:d6584131df08 | 373 | |
AzureIoTClient | 0:d6584131df08 | 374 | /* Send the device information and commands metadata to the cloud */ |
AzureIoTClient | 0:d6584131df08 | 375 | { |
AzureIoTClient | 0:d6584131df08 | 376 | unsigned char* destination; |
AzureIoTClient | 0:d6584131df08 | 377 | size_t destinationSize; |
AzureIoTClient | 0:d6584131df08 | 378 | if (SERIALIZE(&destination, &destinationSize, frdmDevice->ObjectName, frdmDevice->ObjectType, frdmDevice->SystemProperties, frdmDevice->Version, frdmDevice->Commands) != IOT_AGENT_OK) |
AzureIoTClient | 0:d6584131df08 | 379 | { |
AzureIoTClient | 0:d6584131df08 | 380 | (void)printf("Failed to serialize\r\n"); |
AzureIoTClient | 0:d6584131df08 | 381 | } |
AzureIoTClient | 0:d6584131df08 | 382 | else |
AzureIoTClient | 0:d6584131df08 | 383 | { |
AzureIoTClient | 0:d6584131df08 | 384 | sendMessage(iotHubClientHandle, destination, destinationSize); |
AzureIoTClient | 0:d6584131df08 | 385 | free(destination); |
AzureIoTClient | 0:d6584131df08 | 386 | } |
AzureIoTClient | 0:d6584131df08 | 387 | } |
AzureIoTClient | 0:d6584131df08 | 388 | } |
AzureIoTClient | 0:d6584131df08 | 389 | |
AzureIoTClient | 0:d6584131df08 | 390 | STRING_delete(commandsMetadata); |
AzureIoTClient | 0:d6584131df08 | 391 | } |
AzureIoTClient | 0:d6584131df08 | 392 | |
AzureIoTClient | 0:d6584131df08 | 393 | frdmDevice->ObjectName = (ascii_char_ptr)deviceId; |
AzureIoTClient | 0:d6584131df08 | 394 | frdmDevice->ObjectType = "SensorTagEvent"; |
AzureIoTClient | 0:d6584131df08 | 395 | frdmDevice->Version = "1.0"; |
AzureIoTClient | 0:d6584131df08 | 396 | frdmDevice->TargetAlarmDevice = (ascii_char_ptr)deviceId; |
AzureIoTClient | 0:d6584131df08 | 397 | |
AzureIoTClient | 0:d6584131df08 | 398 | while (1) |
AzureIoTClient | 0:d6584131df08 | 399 | { |
AzureIoTClient | 0:d6584131df08 | 400 | unsigned char* destination; |
AzureIoTClient | 0:d6584131df08 | 401 | size_t destinationSize; |
AzureIoTClient | 0:d6584131df08 | 402 | |
AzureIoTClient | 0:d6584131df08 | 403 | (void)printf("Sending %.02f\r\n", temp); |
AzureIoTClient | 0:d6584131df08 | 404 | frdmDevice->temp = temp; |
AzureIoTClient | 0:d6584131df08 | 405 | |
AzureIoTClient | 0:d6584131df08 | 406 | if (SERIALIZE(&destination, &destinationSize, frdmDevice->ObjectName, frdmDevice->ObjectType, frdmDevice->Version, frdmDevice->TargetAlarmDevice, frdmDevice->temp) != IOT_AGENT_OK) |
AzureIoTClient | 0:d6584131df08 | 407 | { |
AzureIoTClient | 0:d6584131df08 | 408 | (void)printf("Failed to serialize\r\n"); |
AzureIoTClient | 0:d6584131df08 | 409 | } |
AzureIoTClient | 0:d6584131df08 | 410 | else |
AzureIoTClient | 0:d6584131df08 | 411 | { |
AzureIoTClient | 0:d6584131df08 | 412 | sendMessage(iotHubClientHandle, destination, destinationSize); |
AzureIoTClient | 0:d6584131df08 | 413 | free(destination); |
AzureIoTClient | 0:d6584131df08 | 414 | } |
AzureIoTClient | 0:d6584131df08 | 415 | |
AzureIoTClient | 0:d6584131df08 | 416 | /* schedule IoTHubClient to send events/receive commands */ |
AzureIoTClient | 0:d6584131df08 | 417 | IoTHubClient_LL_DoWork(iotHubClientHandle); |
AzureIoTClient | 0:d6584131df08 | 418 | } |
AzureIoTClient | 0:d6584131df08 | 419 | } |
AzureIoTClient | 0:d6584131df08 | 420 | DESTROY_MODEL_INSTANCE(frdmDevice); |
AzureIoTClient | 0:d6584131df08 | 421 | } |
AzureIoTClient | 0:d6584131df08 | 422 | IoTHubClient_LL_Destroy(iotHubClientHandle); |
AzureIoTClient | 0:d6584131df08 | 423 | } |
AzureIoTClient | 0:d6584131df08 | 424 | serializer_deinit(); |
AzureIoTClient | 0:d6584131df08 | 425 | } |
AzureIoTClient | 0:d6584131df08 | 426 | } |