Christos Vasilakis
/
pelion-example-common-DISCO_F413ZH
pelion-example-common-DISCO_F413ZH
Diff: main.cpp
- Revision:
- 19:7e760f65ed78
- Parent:
- 14:1ac188d5404d
- Child:
- 23:64f3f756acf6
--- a/main.cpp Fri Jan 04 18:45:54 2019 +0000 +++ b/main.cpp Tue Feb 19 22:34:59 2019 +0000 @@ -22,10 +22,6 @@ #include "FATFileSystem.h" #include "LittleFileSystem.h" -// 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; - // 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(); @@ -51,43 +47,51 @@ #define SENSORS_POLL_INTERVAL 1.0 -// Declaring pointers for access to Pelion Client resources outside of main() -MbedCloudClientResource *res_button; -MbedCloudClientResource *res_led; -MbedCloudClientResource *res_temperature; -MbedCloudClientResource *res_voltage; +// Declaring pointers for access to Pelion Device Management Client resources outside of main() +MbedCloudClientResource *button_res; +MbedCloudClientResource *led_res; +MbedCloudClientResource *post_res; -// When the device is registered, this variable will be used to access various useful information, like device ID etc. -static const ConnectorClientEndpointInfo* endpointInfo; +MbedCloudClientResource *temp_res; +MbedCloudClientResource *volt_res; + + +// 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; /** - * PUT handler + * 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 led_put_callback(MbedCloudClientResource *resource, m2m::String newValue) { +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 + * 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 led_post_callback(MbedCloudClientResource *resource, const uint8_t *buffer, uint16_t size) { - printf("POST received. Payload: %s\n", res_led->get_value().c_str()); - led = atoi(res_led->get_value().c_str()); +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 function triggered by the physical button press. + * 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); + int v = button_res->get_value_int() + 1; + button_res->set_value(v); printf("Button clicked %d times\n", v); } @@ -103,7 +107,10 @@ /** * Registration callback handler * @param endpoint Information about the registered endpoint such as the name (so you can find it back in portal) + * When the device is registered, this variable will be used to access various useful information, like device ID etc. */ + +static const ConnectorClientEndpointInfo* endpointInfo; void registered(const ConnectorClientEndpointInfo *endpoint) { printf("Registered to Pelion Device Management. Endpoint Name: %s\n", endpoint->internal_endpoint_name.c_str()); endpointInfo = endpoint; @@ -118,8 +125,8 @@ float vref = adc_vref.read(); printf("ADC temp: %6.4f C, vref: %6.4f %%\r\n", temp, vref); if (endpointInfo) { - res_temperature->set_value(temp); - res_voltage->set_value(vref); + temp_res->set_value(temp); + volt_res->set_value(vref); } } @@ -128,14 +135,7 @@ printf("\nStarting Simple Pelion Device Management Client example\n"); // If the User button is pressed ons start, then format storage. - DigitalIn *user_button = new DigitalIn(BUTTON1); -#if TARGET_DISCO_L475VG_IOT01A - // The user button on DISCO_L475VG_IOT01A works the other way around - const int PRESSED = 0; -#else - const int PRESSED = 1; -#endif - if (user_button->read() == PRESSED) { + if (button.read() == MBED_CONF_APP_BUTTON_PRESSED_STATE) { printf("User button is pushed on start. Formatting the storage...\n"); int storage_status = fs.reformat(bd); if (storage_status != 0) { @@ -146,66 +146,57 @@ } } } - 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"); } - // Connect to the internet (DHCP is expected to be on) + // 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 = -1; - for (int tries = 0; tries < 3; tries++) { - net_status = net->connect(); - if (net_status == NSAPI_ERROR_OK) { - break; - } else { - printf("Unable to connect to network. Retrying...\n"); - } - } - - if (net_status != NSAPI_ERROR_OK) { - printf("ERROR: Connecting to the network failed (%d)!\n", net_status); - return -1; + 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 DM + // SimpleMbedCloudClient handles registering over LwM2M to Pelion Device Management SimpleMbedCloudClient client(net, bd, &fs); int client_status = client.init(); if (client_status != 0) { - printf("ERROR: Pelion Client initialization failed (%d)\n", client_status); + 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); + button_res = client.create_resource("3200/0/5501", "button_count"); + button_res->set_value(0); + button_res->methods(M2MMethod::GET); + button_res->observable(true); + button_res->attach_notification_callback(button_callback); - res_led = client.create_resource("3201/0/5853", "led_state"); - res_led->set_value(1); - res_led->methods(M2MMethod::GET | M2MMethod::PUT); - res_led->attach_put_callback(led_put_callback); + led_res = client.create_resource("3201/0/5853", "led_state"); + led_res->set_value(led.read()); + led_res->methods(M2MMethod::GET | M2MMethod::PUT); + led_res->attach_put_callback(put_callback); + + post_res = client.create_resource("3300/0/5605", "execute_function"); + post_res->methods(M2MMethod::POST); + post_res->attach_post_callback(post_callback); // Sensor resources - res_temperature = client.create_resource("3303/0/5700", "temperature"); - res_temperature->set_value(0); - res_temperature->methods(M2MMethod::GET); - res_temperature->observable(true); + temp_res = client.create_resource("3303/0/5700", "temperature"); + temp_res->set_value(0); + temp_res->methods(M2MMethod::GET); + temp_res->observable(true); - res_voltage = client.create_resource("3316/0/5700", "voltage"); - res_voltage->set_value(0); - res_voltage->methods(M2MMethod::GET); - res_voltage->observable(true); + volt_res = client.create_resource("3316/0/5700", "voltage"); + volt_res->set_value(0); + volt_res->methods(M2MMethod::GET); + volt_res->observable(true); printf("Initialized Pelion Device Management Client. Registering...\n"); @@ -215,19 +206,15 @@ // Register with Pelion DM client.register_and_connect(); - int i = 600; // wait up 60 seconds before attaching sensors and button events - while (i-- > 0 && !client.is_client_registered()) { - wait_ms(100); - } - + // 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 + +#endif /* MBED_TEST_MODE */