Diff: main.cpp

Revision:

0:11cc2b7889af

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Nov 19 09:49:38 2019 +0000
@@ -0,0 +1,345 @@
+// ----------------------------------------------------------------------------
+// Copyright 2016-2018 ARM Ltd.
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// ----------------------------------------------------------------------------
+#ifndef MBED_TEST_MODE
+
+#include "mbed.h"
+#include "simple-mbed-cloud-client.h"
+#include "FATFileSystem.h"
+#include "LittleFileSystem.h"
+
+// Default network interface object. Don't forget to change the WiFi SSID/password in mbed_app.json if you're using WiFi.
+NetworkInterface *net = NetworkInterface::get_default_instance();
+
+// Default block device available on the target board
+BlockDevice *bd = BlockDevice::get_default_instance();
+
+#if COMPONENT_SD || COMPONENT_NUSD
+// Use FATFileSystem for SD card type blockdevices
+FATFileSystem fs("fs");
+#else
+// Use LittleFileSystem for non-SD block devices to enable wear leveling and other functions
+LittleFileSystem fs("fs");
+#endif
+
+// Default User button for GET example and for resetting the storage
+InterruptIn button(BUTTON1);
+// Default LED to use for PUT/POST example
+DigitalOut led(LED1, 0);
+
+// How often to fetch sensor data (in seconds)
+#define SENSORS_POLL_INTERVAL 3.0
+
+// Send all sensor data or just limited (useful for when running out of memory)
+//#define SEND_ALL_SENSORS
+
+// Sensors related includes and initialization
+#include "FXOS8700Q.h"
+#include "FXAS21002.h"
+
+#ifdef TARGET_K66F
+I2C sens_i2c(PTD9, PTD8);
+#else
+I2C sens_i2c(PTE25, PTE24);
+#endif /* TARGET_K66F */
+
+FXOS8700QAccelerometer sens_acc(sens_i2c, FXOS8700CQ_SLAVE_ADDR1);    // Configured for the FRDM-K64F with onboard sensors
+FXOS8700QMagnetometer sens_mag(sens_i2c, FXOS8700CQ_SLAVE_ADDR1);
+#ifdef TARGET_K66F
+FXAS21002 sens_gyro(PTD9, PTD8, 0x20);
+#endif /* TARGET_K66F */
+
+// Declaring pointers for access to Pelion Device Management Client resources outside of main()
+MbedCloudClientResource *res_button;
+MbedCloudClientResource *res_led;
+MbedCloudClientResource *res_post;
+
+// Additional resources for sensor readings
+#ifdef SEND_ALL_SENSORS
+MbedCloudClientResource *res_magnometer_x;
+MbedCloudClientResource *res_magnometer_y;
+MbedCloudClientResource *res_magnometer_z;
+MbedCloudClientResource *res_accelerometer_x;
+MbedCloudClientResource *res_accelerometer_y;
+MbedCloudClientResource *res_accelerometer_z;
+#ifdef TARGET_K66F
+MbedCloudClientResource *res_gyroscope_x;
+MbedCloudClientResource *res_gyroscope_y;
+MbedCloudClientResource *res_gyroscope_z;
+#endif /* TARGET_K66F */
+#endif /* SEND_ALL_SENSORS */
+
+// An event queue is a very useful structure to debounce information between contexts (e.g. ISR and normal threads)
+// 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
+EventQueue eventQueue;
+
+// When the device is registered, this variable will be used to access various useful information, like device ID etc.
+static const ConnectorClientEndpointInfo* endpointInfo;
+
+/**
+ * PUT handler - sets the value of the built-in LED
+ * @param resource The resource that triggered the callback
+ * @param newValue Updated value for the resource
+ */
+void put_callback(MbedCloudClientResource *resource, m2m::String newValue) {
+    printf("*** PUT received, new value: %s                             \n", newValue.c_str());
+    led = atoi(newValue.c_str());
+}
+
+/**
+ * POST handler - prints the content of the payload
+ * @param resource The resource that triggered the callback
+ * @param buffer If a body was passed to the POST function, this contains the data.
+ *               Note that the buffer is deallocated after leaving this function, so copy it if you need it longer.
+ * @param size Size of the body
+ */
+void post_callback(MbedCloudClientResource *resource, const uint8_t *buffer, uint16_t size) {
+    printf("*** POST received (length %u). Payload: ", size);
+    for (size_t ix = 0; ix < size; ix++) {
+        printf("%02x ", buffer[ix]);
+    }
+    printf("\n");
+}
+
+/**
+ * Button handler
+ * This function will be triggered either by a physical button press or by a ticker every 5 seconds (see below)
+ */
+void button_press() {
+    int v = res_button->get_value_int() + 1;
+    res_button->set_value(v);
+    printf("*** Button clicked %d times                                 \n", v);
+}
+
+/**
+ * Notification callback handler
+ * @param resource The resource that triggered the callback
+ * @param status The delivery status of the notification
+ */
+void button_callback(MbedCloudClientResource *resource, const NoticationDeliveryStatus status) {
+    printf("*** Button notification, status %s (%d)                     \n", MbedCloudClientResource::delivery_status_to_string(status), status);
+}
+
+/**
+ * Registration callback handler
+ * @param endpoint Information about the registered endpoint such as the name (so you can find it back in portal)
+ */
+void registered(const ConnectorClientEndpointInfo *endpoint) {
+    printf("Registered to Pelion Device Management. Endpoint Name: %s\n", endpoint->internal_endpoint_name.c_str());
+    endpointInfo = endpoint;
+}
+
+/**
+ * Initialize sensors
+ */
+void sensors_init() {
+    printf ("\nSensors configuration:\n");
+
+    sens_acc.enable();
+    sens_mag.enable();
+#ifdef TARGET_K66F
+    sens_gyro.activate(true);
+#endif /* TARGET_K66F */
+
+    printf("FXOS8700Q accelerometer = 0x%X\n", sens_acc.whoAmI());
+    printf("FXOS8700Q magnetometer  = 0x%X\n", sens_mag.whoAmI());
+#ifdef TARGET_K66F
+    printf("FXAS21002 gyroscope     = 0x%X\n", sens_gyro.getStatus());
+#endif /* TARGET_K66F */
+
+    printf("\n"); ;
+}
+
+/**
+ * Update sensors and report their values.
+ * This function is called periodically.
+ */
+void sensors_update() {
+    motion_data_counts_t acc_raw, mag_raw;
+
+    sens_acc.getAxis(acc_raw);
+    sens_mag.getAxis(mag_raw);
+
+    float mag_x = (double)mag_raw.x / 1000.0, mag_y = (double)mag_raw.y / 1000.0, mag_z = (double)mag_raw.z / 1000.0;
+    float acc_x = (double)acc_raw.x / 1000.0, acc_y = (double)acc_raw.y / 1000.0, acc_z = (double)acc_raw.z / 1000.0;
+#ifdef TARGET_K66F
+    float gyro_x = (double)sens_gyro.getX() / 1000.0, gyro_y = (double)sens_gyro.getY() / 1000.0, gyro_z = (double)sens_gyro.getZ() / 1000.0;
+#endif /* TARGET_K66F */
+
+    printf("                                                             \n");
+    printf("FXOS8700Q mag:  %7.3f x, %7.3f y, %7.3f z [gauss]        \n", mag_x, mag_y, mag_z);
+    printf("FXOS8700Q acc:  %7.3f x, %7.3f y, %7.3f z [g]            \n", acc_x, acc_y, acc_z);
+#ifdef TARGET_K66F
+    printf("FXAS21002 gryo: %7.3f x, %7.3f y, %7.3f z [dps]          \n", gyro_x, gyro_y, gyro_z);
+    printf("\r\033[4A");
+#else
+    printf("\r\033[3A");
+#endif /* TARGET_K66F */
+
+    if (endpointInfo) {
+#ifdef SEND_ALL_SENSORS
+        res_accelerometer_x->set_value(acc_x);
+        res_accelerometer_y->set_value(acc_y);
+        res_accelerometer_z->set_value(acc_z);
+        res_magnometer_x->set_value(mag_x);
+        res_magnometer_y->set_value(mag_y);
+        res_magnometer_z->set_value(mag_z);
+#ifdef TARGET_K66F
+        res_gyroscope_x->set_value(gyro_x);
+        res_gyroscope_y->set_value(gyro_y);
+        res_gyroscope_z->set_value(gyro_z);
+#endif /* TARGET_K66F */
+#endif /* SEND_ALL_SENSORS */
+    }
+}
+
+int main(void) {
+    printf("\nStarting Simple Pelion Device Management Client example\n");
+
+    int storage_status = fs.mount(bd);
+    if (storage_status != 0) {
+        printf("Storage mounting failed.\n");
+    }
+#if USE_BUTTON == 1
+    // If the User button is pressed ons start, then format storage.
+    bool btn_pressed = (button.read() == MBED_CONF_APP_BUTTON_PRESSED_STATE);
+    if (btn_pressed) {
+        printf("User button is pushed on start...\n");
+    }
+#else
+    bool btn_pressed = FALSE;
+#endif /* USE_BUTTON */
+
+    if (storage_status || btn_pressed) {
+        printf("Formatting the storage...\n");
+        int storage_status = StorageHelper::format(&fs, bd);
+        if (storage_status != 0) {
+            printf("ERROR: Failed to reformat the storage (%d).\n", storage_status);
+        }
+    } else {
+        printf("You can hold the user button during boot to format the storage and change the device identity.\n");
+    }
+
+    sensors_init();
+
+    // Connect to the Internet (DHCP is expected to be on)
+    printf("Connecting to the network using the default network interface...\n");
+    net = NetworkInterface::get_default_instance();
+
+    nsapi_error_t net_status = NSAPI_ERROR_NO_CONNECTION;
+    while ((net_status = net->connect()) != NSAPI_ERROR_OK) {
+        printf("Unable to connect to network (%d). Retrying...\n", net_status);
+    }
+
+    printf("Connected to the network successfully. IP address: %s\n", net->get_ip_address());
+
+    printf("Initializing Pelion Device Management Client...\n");
+
+    // SimpleMbedCloudClient handles registering over LwM2M to Pelion Device Management
+    SimpleMbedCloudClient client(net, bd, &fs);
+    int client_status = client.init();
+    if (client_status != 0) {
+        printf("Pelion Client initialization failed (%d)\n", client_status);
+        return -1;
+    }
+
+    // Creating resources, which can be written or read from the cloud
+    res_button = client.create_resource("3200/0/5501", "button_count");
+    res_button->set_value(0);
+    res_button->methods(M2MMethod::GET);
+    res_button->observable(true);
+    res_button->attach_notification_callback(button_callback);
+
+    res_led = client.create_resource("3201/0/5853", "led_state");
+    res_led->set_value(led.read());
+    res_led->methods(M2MMethod::GET | M2MMethod::PUT);
+    res_led->attach_put_callback(put_callback);
+
+    res_post = client.create_resource("3300/0/5605", "execute_function");
+    res_post->methods(M2MMethod::POST);
+    res_post->attach_post_callback(post_callback);
+
+#ifdef SEND_ALL_SENSORS
+    res_accelerometer_x = client.create_resource("3313/0/5702", "Accelerometer X");
+    res_accelerometer_x->set_value(0);
+    res_accelerometer_x->methods(M2MMethod::GET);
+    res_accelerometer_x->observable(true);
+
+    res_accelerometer_y = client.create_resource("3313/0/5703", "Accelerometer Y");
+    res_accelerometer_y->set_value(0);
+    res_accelerometer_y->methods(M2MMethod::GET);
+    res_accelerometer_y->observable(true);
+
+    res_accelerometer_z = client.create_resource("3313/0/5704", "Accelerometer Z");
+    res_accelerometer_z->set_value(0);
+    res_accelerometer_z->methods(M2MMethod::GET);
+    res_accelerometer_z->observable(true);
+
+    res_magnometer_x = client.create_resource("3314/0/5702", "Magnometer X");
+    res_magnometer_x->set_value(0);
+    res_magnometer_x->methods(M2MMethod::GET);
+    res_magnometer_x->observable(true);
+
+    res_magnometer_y = client.create_resource("3314/0/5703", "Magnometer Y");
+    res_magnometer_y->set_value(0);
+    res_magnometer_y->methods(M2MMethod::GET);
+    res_magnometer_y->observable(true);
+
+    res_magnometer_z = client.create_resource("3314/0/5704", "Magnometer Z");
+    res_magnometer_z->set_value(0);
+    res_magnometer_z->methods(M2MMethod::GET);
+    res_magnometer_z->observable(true);
+
+#ifdef TARGET_K66F
+    res_gyroscope_x = client.create_resource("3334/0/5702", "Gyroscope X");
+    res_gyroscope_x->set_value(0);
+    res_gyroscope_x->methods(M2MMethod::GET);
+    res_gyroscope_x->observable(true);
+
+    res_gyroscope_y = client.create_resource("3334/0/5703", "Gyroscope Y");
+    res_gyroscope_y->set_value(0);
+    res_gyroscope_y->methods(M2MMethod::GET);
+    res_gyroscope_y->observable(true);
+
+    res_gyroscope_z = client.create_resource("3334/0/5704", "Gyroscope Z");
+    res_gyroscope_z->set_value(0);
+    res_gyroscope_z->methods(M2MMethod::GET);
+    res_gyroscope_z->observable(true);
+#endif /* TARGET_K66F */
+#endif /* SEND_ALL_SENSORS */
+
+    printf("Initialized Pelion Device Management Client. Registering...\n");
+
+    // Callback that fires when registering is complete
+    client.on_registered(&registered);
+
+    // Register with Pelion DM
+    client.register_and_connect();
+
+    // The button fires on an interrupt context, but debounces it to the eventqueue, so it's safe to do network operations
+    button.fall(eventQueue.event(&button_press));
+    printf("Press the user button to increment the LwM2M resource value...\n");
+
+    // The timer fires on an interrupt context, but debounces it to the eventqueue, so it's safe to do network operations
+    Ticker timer;
+    timer.attach(eventQueue.event(&sensors_update), SENSORS_POLL_INTERVAL);
+
+    // You can easily run the eventQueue in a separate thread if required
+    eventQueue.dispatch_forever();
+}
+
+#endif /* MBED_TEST_MODE */