Sailesh Timilsena / Mbed OS Z_Temperature_IOT_ResearchWork

Temperature only code for husky showcase

Dependencies:   X_NUCLEO_COMMON ST_INTERFACES

main.cpp@38:96720926ad4e, 2021-03-17 (annotated)

Committer:
saileshtimilsena
Date:
Wed Mar 17 13:44:22 2021 +0000
Revision:
38:96720926ad4e
Parent:
37:b7acef59086c
Child:
39:058f19313774
Temperature only code

Who changed what in which revision?

UserRevisionLine numberNew contents of line
adustm 1:e86b1cffc402 1 // ----------------------------------------------------------------------------
adustm 4:cf7342047b4d 2 // Copyright 2016-2018 ARM Ltd.
adustm 1:e86b1cffc402 3 //
adustm 1:e86b1cffc402 4 // SPDX-License-Identifier: Apache-2.0
adustm 1:e86b1cffc402 5 //
adustm 1:e86b1cffc402 6 // Licensed under the Apache License, Version 2.0 (the "License");
adustm 1:e86b1cffc402 7 // you may not use this file except in compliance with the License.
adustm 1:e86b1cffc402 8 // You may obtain a copy of the License at
adustm 1:e86b1cffc402 9 //
adustm 1:e86b1cffc402 10 // http://www.apache.org/licenses/LICENSE-2.0
adustm 1:e86b1cffc402 11 //
adustm 1:e86b1cffc402 12 // Unless required by applicable law or agreed to in writing, software
adustm 1:e86b1cffc402 13 // distributed under the License is distributed on an "AS IS" BASIS,
adustm 1:e86b1cffc402 14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
adustm 1:e86b1cffc402 15 // See the License for the specific language governing permissions and
adustm 1:e86b1cffc402 16 // limitations under the License.
adustm 1:e86b1cffc402 17 // ----------------------------------------------------------------------------
MarceloSalazar 9:265744785d33 18 #ifndef MBED_TEST_MODE
screamer 28:0e774865873d 19
adustm 1:e86b1cffc402 20 #include "mbed.h"
adustm 1:e86b1cffc402 21 #include "simple-mbed-cloud-client.h"
screamer 10:b27c962b3c3f 22 #include "LittleFileSystem.h"
saileshtimilsena 37:b7acef59086c 23 #include<math.h>
saileshtimilsena 35:871447da961d 24
screamer 33:cfd9430e7d1e 25 // Default network interface object. Don't forget to change the WiFi SSID/password in mbed_app.json if you're using WiFi.
screamer 33:cfd9430e7d1e 26 NetworkInterface *net;
screamer 33:cfd9430e7d1e 27
screamer 33:cfd9430e7d1e 28 // Default block device available on the target board
screamer 33:cfd9430e7d1e 29 BlockDevice* bd = BlockDevice::get_default_instance();
screamer 33:cfd9430e7d1e 30 SlicingBlockDevice sd(bd, 0, 2*1024*1024);
screamer 33:cfd9430e7d1e 31
screamer 33:cfd9430e7d1e 32 #if COMPONENT_SD || COMPONENT_NUSD
screamer 33:cfd9430e7d1e 33 // Use FATFileSystem for SD card type blockdevices
screamer 33:cfd9430e7d1e 34 FATFileSystem fs("fs");
screamer 33:cfd9430e7d1e 35 #else
screamer 33:cfd9430e7d1e 36 // Use LittleFileSystem for non-SD block devices to enable wear leveling and other functions
screamer 33:cfd9430e7d1e 37 LittleFileSystem fs("fs");
screamer 33:cfd9430e7d1e 38 #endif
screamer 33:cfd9430e7d1e 39
screamer 33:cfd9430e7d1e 40 // Default User button for GET example and for resetting the storage
screamer 33:cfd9430e7d1e 41 InterruptIn button(BUTTON1);
screamer 33:cfd9430e7d1e 42 // Default LED to use for PUT/POST example
screamer 33:cfd9430e7d1e 43 DigitalOut led(LED1, 1);
screamer 33:cfd9430e7d1e 44
screamer 33:cfd9430e7d1e 45 // How often to fetch sensor data (in seconds)
screamer 33:cfd9430e7d1e 46 #define SENSORS_POLL_INTERVAL 3.0
screamer 33:cfd9430e7d1e 47
screamer 33:cfd9430e7d1e 48 // Send all sensor data or just limited (useful for when running out of memory)
screamer 33:cfd9430e7d1e 49 #define SEND_ALL_SENSORS
screamer 33:cfd9430e7d1e 50
screamer 33:cfd9430e7d1e 51 // Sensors related includes and initialization
saileshtimilsena 35:871447da961d 52 #include "HTS221Sensor.h" //humidity and temperature
screamer 10:b27c962b3c3f 53
screamer 10:b27c962b3c3f 54 static DevI2C devI2c(PB_11,PB_10);
screamer 12:1f1a50e973db 55 static HTS221Sensor sen_hum_temp(&devI2c);
saileshtimilsena 37:b7acef59086c 56 //static LSM6DSLSensor sen_acc_gyro(&devI2c,LSM6DSL_ACC_GYRO_I2C_ADDRESS_LOW,PD_11);
saileshtimilsena 37:b7acef59086c 57
screamer 28:0e774865873d 58 static DigitalOut shutdown_pin(PC_6);
saileshtimilsena 35:871447da961d 59
screamer 33:cfd9430e7d1e 60 // Temperature reading from microcontroller
screamer 33:cfd9430e7d1e 61 AnalogIn adc_temp(ADC_TEMP);
screamer 33:cfd9430e7d1e 62 // Voltage reference reading from microcontroller
screamer 33:cfd9430e7d1e 63 AnalogIn adc_vref(ADC_VREF);
screamer 11:8df4529f060d 64
MarceloSalazar 9:265744785d33 65 // Declaring pointers for access to Pelion Client resources outside of main()
screamer 12:1f1a50e973db 66 MbedCloudClientResource *res_button;
screamer 12:1f1a50e973db 67 MbedCloudClientResource *res_led;
adustm 1:e86b1cffc402 68
screamer 33:cfd9430e7d1e 69 // Additional resources for sensor readings
screamer 28:0e774865873d 70 #ifdef SEND_ALL_SENSORS
saileshtimilsena 37:b7acef59086c 71 MbedCloudClientResource *res_temperature;
saileshtimilsena 37:b7acef59086c 72
saileshtimilsena 37:b7acef59086c 73
screamer 13:42b49a0caade 74 #endif /* SEND_ALL_SENSORS */
adustm 1:e86b1cffc402 75
screamer 33:cfd9430e7d1e 76 // An event queue is a very useful structure to debounce information between contexts (e.g. ISR and normal threads)
screamer 33:cfd9430e7d1e 77 // This is great because things such as network operations are illegal in ISR, so updating a resource in a button's fall() function is not allowed
screamer 33:cfd9430e7d1e 78 EventQueue eventQueue;
screamer 33:cfd9430e7d1e 79
screamer 10:b27c962b3c3f 80 // When the device is registered, this variable will be used to access various useful information, like device ID etc.
screamer 10:b27c962b3c3f 81 static const ConnectorClientEndpointInfo* endpointInfo;
adustm 1:e86b1cffc402 82
screamer 10:b27c962b3c3f 83 /**
adustm 4:cf7342047b4d 84 * PUT handler
adustm 4:cf7342047b4d 85 * @param resource The resource that triggered the callback
adustm 4:cf7342047b4d 86 * @param newValue Updated value for the resource
adustm 4:cf7342047b4d 87 */
screamer 32:2871fbeb627d 88 void put_callback(MbedCloudClientResource *resource, m2m::String newValue) {
screamer 29:6ff737b67e7d 89 printf("*** PUT received, new value: %s \n", newValue.c_str());
screamer 11:8df4529f060d 90 led = atoi(newValue.c_str());
adustm 1:e86b1cffc402 91 }
adustm 1:e86b1cffc402 92
adustm 4:cf7342047b4d 93 /**
adustm 4:cf7342047b4d 94 * POST handler
adustm 4:cf7342047b4d 95 * @param resource The resource that triggered the callback
adustm 4:cf7342047b4d 96 * @param buffer If a body was passed to the POST function, this contains the data.
adustm 4:cf7342047b4d 97 * Note that the buffer is deallocated after leaving this function, so copy it if you need it longer.
adustm 4:cf7342047b4d 98 * @param size Size of the body
adustm 4:cf7342047b4d 99 */
screamer 32:2871fbeb627d 100 void post_callback(MbedCloudClientResource *resource, const uint8_t *buffer, uint16_t size) {
screamer 32:2871fbeb627d 101 printf("*** POST received (length %u). Payload: ", size);
screamer 32:2871fbeb627d 102 for (size_t ix = 0; ix < size; ix++) {
screamer 32:2871fbeb627d 103 printf("%02x ", buffer[ix]);
screamer 32:2871fbeb627d 104 }
screamer 32:2871fbeb627d 105 printf("\n");
screamer 11:8df4529f060d 106 }
adustm 1:e86b1cffc402 107
screamer 11:8df4529f060d 108 /**
screamer 13:42b49a0caade 109 * Button function triggered by the physical button press.
screamer 11:8df4529f060d 110 */
screamer 11:8df4529f060d 111 void button_press() {
screamer 12:1f1a50e973db 112 int v = res_button->get_value_int() + 1;
screamer 12:1f1a50e973db 113 res_button->set_value(v);
screamer 29:6ff737b67e7d 114 printf("*** Button clicked %d times \n", v);
adustm 1:e86b1cffc402 115 }
saileshtimilsena 35:871447da961d 116 // Called everytime a new character goes into
saileshtimilsena 35:871447da961d 117 // the RX buffer. Test that character for \n
saileshtimilsena 35:871447da961d 118 // Note, rxGetLastChar() gets the last char that
saileshtimilsena 35:871447da961d 119 // we received but it does NOT remove it from
saileshtimilsena 35:871447da961d 120 // the RX buffer.
saileshtimilsena 37:b7acef59086c 121
adustm 4:cf7342047b4d 122 /**
adustm 4:cf7342047b4d 123 * Notification callback handler
adustm 4:cf7342047b4d 124 * @param resource The resource that triggered the callback
adustm 4:cf7342047b4d 125 * @param status The delivery status of the notification
adustm 4:cf7342047b4d 126 */
adustm 4:cf7342047b4d 127 void button_callback(MbedCloudClientResource *resource, const NoticationDeliveryStatus status) {
screamer 29:6ff737b67e7d 128 printf("*** Button notification, status %s (%d) \n", MbedCloudClientResource::delivery_status_to_string(status), status);
adustm 4:cf7342047b4d 129 }
adustm 1:e86b1cffc402 130
adustm 4:cf7342047b4d 131 /**
adustm 4:cf7342047b4d 132 * Registration callback handler
adustm 4:cf7342047b4d 133 * @param endpoint Information about the registered endpoint such as the name (so you can find it back in portal)
adustm 4:cf7342047b4d 134 */
adustm 4:cf7342047b4d 135 void registered(const ConnectorClientEndpointInfo *endpoint) {
screamer 17:fc98adcf835a 136 printf("Registered to Pelion Device Management. Endpoint Name: %s\n", endpoint->internal_endpoint_name.c_str());
screamer 10:b27c962b3c3f 137 endpointInfo = endpoint;
adustm 4:cf7342047b4d 138 }
adustm 1:e86b1cffc402 139
screamer 10:b27c962b3c3f 140 /**
screamer 10:b27c962b3c3f 141 * Initialize sensors
screamer 10:b27c962b3c3f 142 */
screamer 10:b27c962b3c3f 143 void sensors_init() {
saileshtimilsena 35:871447da961d 144 uint8_t id1, id2;
screamer 29:6ff737b67e7d 145 printf ("\nSensors configuration:\n");
screamer 10:b27c962b3c3f 146 // Initialize sensors
screamer 12:1f1a50e973db 147 sen_hum_temp.init(NULL);
screamer 10:b27c962b3c3f 148
screamer 10:b27c962b3c3f 149 /// Call sensors enable routines
screamer 12:1f1a50e973db 150 sen_hum_temp.enable();
saileshtimilsena 37:b7acef59086c 151
screamer 29:6ff737b67e7d 152 sen_hum_temp.read_id(&id1);
screamer 10:b27c962b3c3f 153
screamer 29:6ff737b67e7d 154 printf("HTS221 humidity & temperature = 0x%X\n", id1);
screamer 17:fc98adcf835a 155 printf("\n"); ;
screamer 10:b27c962b3c3f 156 }
screamer 10:b27c962b3c3f 157
screamer 10:b27c962b3c3f 158 /**
screamer 10:b27c962b3c3f 159 * Update sensors and report their values.
screamer 10:b27c962b3c3f 160 * This function is called periodically.
screamer 10:b27c962b3c3f 161 */
screamer 10:b27c962b3c3f 162 void sensors_update() {
saileshtimilsena 37:b7acef59086c 163 float temp1_value = 0.0;
saileshtimilsena 37:b7acef59086c 164 //float temp3_value = 0.0;
saileshtimilsena 35:871447da961d 165
saileshtimilsena 37:b7acef59086c 166 sen_hum_temp.get_temperature(&temp1_value);
saileshtimilsena 37:b7acef59086c 167
saileshtimilsena 38:96720926ad4e 168 printf("%2.2f C^1",temp1_value);
saileshtimilsena 37:b7acef59086c 169 printf("\n");
saileshtimilsena 35:871447da961d 170
saileshtimilsena 37:b7acef59086c 171 wait_us(4000);//Wait until the loop_timer reaches 4000us (250Hz) before starting the next loop
saileshtimilsena 37:b7acef59086c 172
screamer 13:42b49a0caade 173 if (endpointInfo) {
screamer 33:cfd9430e7d1e 174 #ifdef SEND_ALL_SENSORS
saileshtimilsena 37:b7acef59086c 175 res_temperature->set_value(temp1_value);
saileshtimilsena 37:b7acef59086c 176
screamer 13:42b49a0caade 177 #endif /* SEND_ALL_SENSORS */
screamer 28:0e774865873d 178 }
screamer 10:b27c962b3c3f 179 }
screamer 10:b27c962b3c3f 180
saileshtimilsena 35:871447da961d 181 int main(void)
saileshtimilsena 35:871447da961d 182 {
screamer 17:fc98adcf835a 183 printf("\nStarting Simple Pelion Device Management Client example\n");
adustm 4:cf7342047b4d 184
screamer 29:6ff737b67e7d 185 int storage_status = fs.mount(&sd);
screamer 29:6ff737b67e7d 186 if (storage_status != 0) {
screamer 29:6ff737b67e7d 187 printf("Storage mounting failed.\n");
screamer 29:6ff737b67e7d 188 }
screamer 30:15743b79c6cb 189 // If the User button is pressed ons start, then format storage.
screamer 29:6ff737b67e7d 190 bool btn_pressed = (button.read() == MBED_CONF_APP_BUTTON_PRESSED_STATE);
screamer 29:6ff737b67e7d 191 if (btn_pressed) {
screamer 29:6ff737b67e7d 192 printf("User button is pushed on start...\n");
screamer 29:6ff737b67e7d 193 }
screamer 30:15743b79c6cb 194
screamer 29:6ff737b67e7d 195 if (storage_status || btn_pressed) {
screamer 29:6ff737b67e7d 196 printf("Formatting the storage...\n");
screamer 30:15743b79c6cb 197 int storage_status = StorageHelper::format(&fs, &sd);
screamer 10:b27c962b3c3f 198 if (storage_status != 0) {
screamer 13:42b49a0caade 199 printf("ERROR: Failed to reformat the storage (%d).\n", storage_status);
screamer 10:b27c962b3c3f 200 }
screamer 28:0e774865873d 201 } else {
screamer 28:0e774865873d 202 printf("You can hold the user button during boot to format the storage and change the device identity.\n");
screamer 10:b27c962b3c3f 203 }
screamer 10:b27c962b3c3f 204
screamer 10:b27c962b3c3f 205 sensors_init();
screamer 10:b27c962b3c3f 206
adustm 4:cf7342047b4d 207 // Connect to the internet (DHCP is expected to be on)
screamer 13:42b49a0caade 208 printf("Connecting to the network using Wifi...\n");
MarceloSalazar 9:265744785d33 209 net = NetworkInterface::get_default_instance();
adustm 4:cf7342047b4d 210
screamer 10:b27c962b3c3f 211 nsapi_error_t net_status = -1;
screamer 10:b27c962b3c3f 212 for (int tries = 0; tries < 3; tries++) {
screamer 10:b27c962b3c3f 213 net_status = net->connect();
screamer 10:b27c962b3c3f 214 if (net_status == NSAPI_ERROR_OK) {
screamer 10:b27c962b3c3f 215 break;
screamer 10:b27c962b3c3f 216 } else {
screamer 13:42b49a0caade 217 printf("Unable to connect to network. Retrying...\n");
screamer 10:b27c962b3c3f 218 }
screamer 10:b27c962b3c3f 219 }
MarceloSalazar 9:265744785d33 220
screamer 10:b27c962b3c3f 221 if (net_status != NSAPI_ERROR_OK) {
screamer 13:42b49a0caade 222 printf("ERROR: Connecting to the network failed (%d)!\n", net_status);
adustm 1:e86b1cffc402 223 return -1;
adustm 1:e86b1cffc402 224 }
adustm 1:e86b1cffc402 225
MarceloSalazar 9:265744785d33 226 printf("Connected to the network successfully. IP address: %s\n", net->get_ip_address());
adustm 1:e86b1cffc402 227
screamer 17:fc98adcf835a 228 printf("Initializing Pelion Device Management Client...\n");
screamer 17:fc98adcf835a 229
MarceloSalazar 9:265744785d33 230 // SimpleMbedCloudClient handles registering over LwM2M to Pelion DM
MarceloSalazar 9:265744785d33 231 SimpleMbedCloudClient client(net, bd, &fs);
adustm 4:cf7342047b4d 232 int client_status = client.init();
adustm 4:cf7342047b4d 233 if (client_status != 0) {
screamer 13:42b49a0caade 234 printf("ERROR: Pelion Client initialization failed (%d)\n", client_status);
adustm 1:e86b1cffc402 235 return -1;
adustm 1:e86b1cffc402 236 }
adustm 1:e86b1cffc402 237
adustm 4:cf7342047b4d 238 // Creating resources, which can be written or read from the cloud
screamer 32:2871fbeb627d 239 res_button = client.create_resource("3200/0/5501", "Button Count");
screamer 12:1f1a50e973db 240 res_button->set_value(0);
screamer 12:1f1a50e973db 241 res_button->methods(M2MMethod::GET);
screamer 12:1f1a50e973db 242 res_button->observable(true);
screamer 12:1f1a50e973db 243 res_button->attach_notification_callback(button_callback);
adustm 1:e86b1cffc402 244
screamer 33:cfd9430e7d1e 245 res_led = client.create_resource("3201/0/5853", "LED State");
screamer 33:cfd9430e7d1e 246 res_led->set_value(1);
screamer 33:cfd9430e7d1e 247 res_led->methods(M2MMethod::GET | M2MMethod::PUT);
screamer 33:cfd9430e7d1e 248 res_led->attach_put_callback(put_callback);
screamer 33:cfd9430e7d1e 249
screamer 33:cfd9430e7d1e 250 #ifdef SEND_ALL_SENSORS
screamer 10:b27c962b3c3f 251 // Sensor resources
saileshtimilsena 37:b7acef59086c 252 res_temperature = client.create_resource("3303/0/5700", "Temperature HTS221 (C)");
screamer 12:1f1a50e973db 253 res_temperature->set_value(0);
screamer 12:1f1a50e973db 254 res_temperature->methods(M2MMethod::GET);
saileshtimilsena 37:b7acef59086c 255 res_temperature->observable(true);
saileshtimilsena 37:b7acef59086c 256
screamer 13:42b49a0caade 257 #endif /* SEND_ALL_SENSORS */
screamer 11:8df4529f060d 258
MarceloSalazar 9:265744785d33 259 printf("Initialized Pelion Client. Registering...\n");
adustm 1:e86b1cffc402 260
adustm 4:cf7342047b4d 261 // Callback that fires when registering is complete
adustm 4:cf7342047b4d 262 client.on_registered(&registered);
adustm 1:e86b1cffc402 263
MarceloSalazar 9:265744785d33 264 // Register with Pelion DM
adustm 4:cf7342047b4d 265 client.register_and_connect();
adustm 1:e86b1cffc402 266
screamer 17:fc98adcf835a 267 int i = 600; // wait up 60 seconds before attaching sensors and button events
screamer 12:1f1a50e973db 268 while (i-- > 0 && !client.is_client_registered()) {
screamer 12:1f1a50e973db 269 wait_ms(100);
screamer 12:1f1a50e973db 270 }
saileshtimilsena 37:b7acef59086c 271
screamer 11:8df4529f060d 272 button.fall(eventQueue.event(&button_press));
screamer 10:b27c962b3c3f 273
screamer 15:a0430d40a918 274 // The timer fires on an interrupt context, but debounces it to the eventqueue, so it's safe to do network operations
adustm 4:cf7342047b4d 275 Ticker timer;
screamer 11:8df4529f060d 276 timer.attach(eventQueue.event(&sensors_update), SENSORS_POLL_INTERVAL);
adustm 1:e86b1cffc402 277
adustm 4:cf7342047b4d 278 // You can easily run the eventQueue in a separate thread if required
adustm 4:cf7342047b4d 279 eventQueue.dispatch_forever();
adustm 1:e86b1cffc402 280 }
screamer 28:0e774865873d 281
MarceloSalazar 9:265744785d33 282 #endif