rajarajan elango / Mbed OS mbed-os-example-ble-LED

Testing of Onboard Led using nRF control panel app in Android device.

source/main.cpp@79:4c62b7c6081a, 2019-08-15 (annotated)

Committer:
mbed_official
Date:
Thu Aug 15 17:01:56 2019 +0100
Revision:
79:4c62b7c6081a
Parent:
74:51fde11a771f 
Merge pull request #252 from donatieng/mbed_os_update



Update Master branch to use Mbed OS 5.13.1

.

Commit copied from https://github.com/ARMmbed/mbed-os-example-ble

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 2:864ddfb70a9c 1 /* mbed Microcontroller Library
mbed_official 2:864ddfb70a9c 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 2:864ddfb70a9c 3 *
mbed_official 2:864ddfb70a9c 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 2:864ddfb70a9c 5 * you may not use this file except in compliance with the License.
mbed_official 2:864ddfb70a9c 6 * You may obtain a copy of the License at
mbed_official 2:864ddfb70a9c 7 *
mbed_official 2:864ddfb70a9c 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 2:864ddfb70a9c 9 *
mbed_official 2:864ddfb70a9c 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 2:864ddfb70a9c 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 2:864ddfb70a9c 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 2:864ddfb70a9c 13 * See the License for the specific language governing permissions and
mbed_official 2:864ddfb70a9c 14 * limitations under the License.
mbed_official 2:864ddfb70a9c 15 */
mbed_official 2:864ddfb70a9c 16
mbed_official 11:7404978b24e7 17 #include <events/mbed_events.h>
mbed_official 2:864ddfb70a9c 18 #include <mbed.h>
mbed_official 2:864ddfb70a9c 19 #include "ble/BLE.h"
mbed_official 2:864ddfb70a9c 20 #include "LEDService.h"
mbed_official 74:51fde11a771f 21 #include "pretty_printer.h"
mbed_official 2:864ddfb70a9c 22
mbed_official 74:51fde11a771f 23 const static char DEVICE_NAME[] = "LED";
mbed_official 2:864ddfb70a9c 24
mbed_official 74:51fde11a771f 25 static EventQueue event_queue(/* event count */ 10 * EVENTS_EVENT_SIZE);
mbed_official 2:864ddfb70a9c 26
mbed_official 74:51fde11a771f 27 class LEDDemo : ble::Gap::EventHandler {
mbed_official 74:51fde11a771f 28 public:
mbed_official 74:51fde11a771f 29 LEDDemo(BLE &ble, events::EventQueue &event_queue) :
mbed_official 74:51fde11a771f 30 _ble(ble),
mbed_official 74:51fde11a771f 31 _event_queue(event_queue),
mbed_official 74:51fde11a771f 32 _alive_led(LED1, 1),
mbed_official 74:51fde11a771f 33 _actuated_led(LED2, 0),
mbed_official 74:51fde11a771f 34 _led_uuid(LEDService::LED_SERVICE_UUID),
mbed_official 74:51fde11a771f 35 _led_service(NULL),
mbed_official 74:51fde11a771f 36 _adv_data_builder(_adv_buffer) { }
mbed_official 2:864ddfb70a9c 37
mbed_official 74:51fde11a771f 38 ~LEDDemo() {
mbed_official 74:51fde11a771f 39 delete _led_service;
mbed_official 2:864ddfb70a9c 40 }
mbed_official 2:864ddfb70a9c 41
mbed_official 74:51fde11a771f 42 void start() {
mbed_official 74:51fde11a771f 43 _ble.gap().setEventHandler(this);
mbed_official 74:51fde11a771f 44
mbed_official 74:51fde11a771f 45 _ble.init(this, &LEDDemo::on_init_complete);
mbed_official 74:51fde11a771f 46
mbed_official 74:51fde11a771f 47 _event_queue.call_every(500, this, &LEDDemo::blink);
mbed_official 74:51fde11a771f 48
mbed_official 74:51fde11a771f 49 _event_queue.dispatch_forever();
mbed_official 74:51fde11a771f 50 }
mbed_official 2:864ddfb70a9c 51
mbed_official 74:51fde11a771f 52 private:
mbed_official 74:51fde11a771f 53 /** Callback triggered when the ble initialization process has finished */
mbed_official 74:51fde11a771f 54 void on_init_complete(BLE::InitializationCompleteCallbackContext *params) {
mbed_official 74:51fde11a771f 55 if (params->error != BLE_ERROR_NONE) {
mbed_official 74:51fde11a771f 56 printf("Ble initialization failed.");
mbed_official 74:51fde11a771f 57 return;
mbed_official 74:51fde11a771f 58 }
mbed_official 44:df8adb3bc797 59
mbed_official 74:51fde11a771f 60 _led_service = new LEDService(_ble, false);
mbed_official 74:51fde11a771f 61
mbed_official 74:51fde11a771f 62 _ble.gattServer().onDataWritten(this, &LEDDemo::on_data_written);
mbed_official 2:864ddfb70a9c 63
mbed_official 74:51fde11a771f 64 print_mac_address();
mbed_official 74:51fde11a771f 65
mbed_official 74:51fde11a771f 66 start_advertising();
mbed_official 2:864ddfb70a9c 67 }
mbed_official 2:864ddfb70a9c 68
mbed_official 74:51fde11a771f 69 void start_advertising() {
mbed_official 74:51fde11a771f 70 /* Create advertising parameters and payload */
mbed_official 74:51fde11a771f 71
mbed_official 74:51fde11a771f 72 ble::AdvertisingParameters adv_parameters(
mbed_official 74:51fde11a771f 73 ble::advertising_type_t::CONNECTABLE_UNDIRECTED,
mbed_official 74:51fde11a771f 74 ble::adv_interval_t(ble::millisecond_t(1000))
mbed_official 74:51fde11a771f 75 );
mbed_official 74:51fde11a771f 76
mbed_official 74:51fde11a771f 77 _adv_data_builder.setFlags();
mbed_official 74:51fde11a771f 78 _adv_data_builder.setLocalServiceList(mbed::make_Span(&_led_uuid, 1));
mbed_official 74:51fde11a771f 79 _adv_data_builder.setName(DEVICE_NAME);
mbed_official 74:51fde11a771f 80
mbed_official 74:51fde11a771f 81 /* Setup advertising */
mbed_official 74:51fde11a771f 82
mbed_official 74:51fde11a771f 83 ble_error_t error = _ble.gap().setAdvertisingParameters(
mbed_official 74:51fde11a771f 84 ble::LEGACY_ADVERTISING_HANDLE,
mbed_official 74:51fde11a771f 85 adv_parameters
mbed_official 74:51fde11a771f 86 );
mbed_official 74:51fde11a771f 87
mbed_official 74:51fde11a771f 88 if (error) {
mbed_official 74:51fde11a771f 89 printf("_ble.gap().setAdvertisingParameters() failed\r\n");
mbed_official 74:51fde11a771f 90 return;
mbed_official 74:51fde11a771f 91 }
mbed_official 74:51fde11a771f 92
mbed_official 74:51fde11a771f 93 error = _ble.gap().setAdvertisingPayload(
mbed_official 74:51fde11a771f 94 ble::LEGACY_ADVERTISING_HANDLE,
mbed_official 74:51fde11a771f 95 _adv_data_builder.getAdvertisingData()
mbed_official 74:51fde11a771f 96 );
mbed_official 74:51fde11a771f 97
mbed_official 74:51fde11a771f 98 if (error) {
mbed_official 74:51fde11a771f 99 printf("_ble.gap().setAdvertisingPayload() failed\r\n");
mbed_official 74:51fde11a771f 100 return;
mbed_official 74:51fde11a771f 101 }
mbed_official 74:51fde11a771f 102
mbed_official 74:51fde11a771f 103 /* Start advertising */
mbed_official 74:51fde11a771f 104
mbed_official 74:51fde11a771f 105 error = _ble.gap().startAdvertising(ble::LEGACY_ADVERTISING_HANDLE);
mbed_official 74:51fde11a771f 106
mbed_official 74:51fde11a771f 107 if (error) {
mbed_official 74:51fde11a771f 108 printf("_ble.gap().startAdvertising() failed\r\n");
mbed_official 74:51fde11a771f 109 return;
mbed_official 74:51fde11a771f 110 }
mbed_official 2:864ddfb70a9c 111 }
mbed_official 2:864ddfb70a9c 112
mbed_official 74:51fde11a771f 113 /**
mbed_official 74:51fde11a771f 114 * This callback allows the LEDService to receive updates to the ledState Characteristic.
mbed_official 74:51fde11a771f 115 *
mbed_official 74:51fde11a771f 116 * @param[in] params Information about the characterisitc being updated.
mbed_official 74:51fde11a771f 117 */
mbed_official 74:51fde11a771f 118 void on_data_written(const GattWriteCallbackParams *params) {
mbed_official 74:51fde11a771f 119 if ((params->handle == _led_service->getValueHandle()) && (params->len == 1)) {
mbed_official 74:51fde11a771f 120 _actuated_led = *(params->data);
mbed_official 74:51fde11a771f 121 }
mbed_official 74:51fde11a771f 122 }
mbed_official 2:864ddfb70a9c 123
mbed_official 74:51fde11a771f 124 void blink() {
mbed_official 74:51fde11a771f 125 _alive_led = !_alive_led;
mbed_official 74:51fde11a771f 126 }
mbed_official 74:51fde11a771f 127
mbed_official 74:51fde11a771f 128 private:
mbed_official 74:51fde11a771f 129 /* Event handler */
mbed_official 2:864ddfb70a9c 130
mbed_official 74:51fde11a771f 131 void onDisconnectionComplete(const ble::DisconnectionCompleteEvent&) {
mbed_official 74:51fde11a771f 132 _ble.gap().startAdvertising(ble::LEGACY_ADVERTISING_HANDLE);
mbed_official 74:51fde11a771f 133 }
mbed_official 74:51fde11a771f 134
mbed_official 74:51fde11a771f 135 private:
mbed_official 74:51fde11a771f 136 BLE &_ble;
mbed_official 74:51fde11a771f 137 events::EventQueue &_event_queue;
mbed_official 74:51fde11a771f 138 DigitalOut _alive_led;
mbed_official 74:51fde11a771f 139 DigitalOut _actuated_led;
mbed_official 44:df8adb3bc797 140
mbed_official 74:51fde11a771f 141 UUID _led_uuid;
mbed_official 74:51fde11a771f 142 LEDService *_led_service;
mbed_official 2:864ddfb70a9c 143
mbed_official 74:51fde11a771f 144 uint8_t _adv_buffer[ble::LEGACY_ADVERTISING_MAX_SIZE];
mbed_official 74:51fde11a771f 145 ble::AdvertisingDataBuilder _adv_data_builder;
mbed_official 74:51fde11a771f 146 };
mbed_official 74:51fde11a771f 147
mbed_official 74:51fde11a771f 148 /** Schedule processing of events from the BLE middleware in the event queue. */
mbed_official 74:51fde11a771f 149 void schedule_ble_events(BLE::OnEventsToProcessCallbackContext *context) {
mbed_official 74:51fde11a771f 150 event_queue.call(Callback<void()>(&context->ble, &BLE::processEvents));
mbed_official 2:864ddfb70a9c 151 }
mbed_official 2:864ddfb70a9c 152
mbed_official 2:864ddfb70a9c 153 int main()
mbed_official 2:864ddfb70a9c 154 {
mbed_official 74:51fde11a771f 155 BLE &ble = BLE::Instance();
mbed_official 74:51fde11a771f 156 ble.onEventsToProcess(schedule_ble_events);
mbed_official 2:864ddfb70a9c 157
mbed_official 74:51fde11a771f 158 LEDDemo demo(ble, event_queue);
mbed_official 74:51fde11a771f 159 demo.start();
mbed_official 2:864ddfb70a9c 160
mbed_official 2:864ddfb70a9c 161 return 0;
mbed_official 2:864ddfb70a9c 162 }
mbed_official 74:51fde11a771f 163