younes sami / Mbed OS Sending_data_blte

Reading and sending sensor data over BLE

Dependencies:   BSP_B-L475E-IOT01

source/main.cpp@2:864ddfb70a9c, 2016-07-28 (annotated)

Committer:
mbed_official
Date:
Thu Jul 28 23:14:48 2016 +0100
Revision:
2:864ddfb70a9c
Parent:
1:b1f4696c0018
Child:
11:7404978b24e7
Merge branch 'master' of https://github.com/ARMmbed/mbed-os-example-ble





Commit copied from ./src/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 2:864ddfb70a9c 17 #include <mbed-events/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 2:864ddfb70a9c 21
mbed_official 2:864ddfb70a9c 22 DigitalOut alivenessLED(LED1, 0);
mbed_official 2:864ddfb70a9c 23 DigitalOut actuatedLED(LED2, 0);
mbed_official 2:864ddfb70a9c 24
mbed_official 2:864ddfb70a9c 25 const static char DEVICE_NAME[] = "LED";
mbed_official 2:864ddfb70a9c 26 static const uint16_t uuid16_list[] = {LEDService::LED_SERVICE_UUID};
mbed_official 2:864ddfb70a9c 27
mbed_official 2:864ddfb70a9c 28 static EventQueue eventQueue(
mbed_official 2:864ddfb70a9c 29 /* event count */ 10 * /* event size */ 32
mbed_official 2:864ddfb70a9c 30 );
mbed_official 2:864ddfb70a9c 31
mbed_official 2:864ddfb70a9c 32 LEDService *ledServicePtr;
mbed_official 2:864ddfb70a9c 33
mbed_official 2:864ddfb70a9c 34 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
mbed_official 2:864ddfb70a9c 35 {
mbed_official 2:864ddfb70a9c 36 (void) params;
mbed_official 2:864ddfb70a9c 37 BLE::Instance().gap().startAdvertising();
mbed_official 2:864ddfb70a9c 38 }
mbed_official 2:864ddfb70a9c 39
mbed_official 2:864ddfb70a9c 40 void blinkCallback(void)
mbed_official 2:864ddfb70a9c 41 {
mbed_official 2:864ddfb70a9c 42 alivenessLED = !alivenessLED; /* Do blinky on LED1 to indicate system aliveness. */
mbed_official 2:864ddfb70a9c 43 }
mbed_official 2:864ddfb70a9c 44
mbed_official 2:864ddfb70a9c 45 /**
mbed_official 2:864ddfb70a9c 46 * This callback allows the LEDService to receive updates to the ledState Characteristic.
mbed_official 2:864ddfb70a9c 47 *
mbed_official 2:864ddfb70a9c 48 * @param[in] params
mbed_official 2:864ddfb70a9c 49 * Information about the characterisitc being updated.
mbed_official 2:864ddfb70a9c 50 */
mbed_official 2:864ddfb70a9c 51 void onDataWrittenCallback(const GattWriteCallbackParams *params) {
mbed_official 2:864ddfb70a9c 52 if ((params->handle == ledServicePtr->getValueHandle()) && (params->len == 1)) {
mbed_official 2:864ddfb70a9c 53 actuatedLED = *(params->data);
mbed_official 2:864ddfb70a9c 54 }
mbed_official 2:864ddfb70a9c 55 }
mbed_official 2:864ddfb70a9c 56
mbed_official 2:864ddfb70a9c 57 /**
mbed_official 2:864ddfb70a9c 58 * This function is called when the ble initialization process has failled
mbed_official 2:864ddfb70a9c 59 */
mbed_official 2:864ddfb70a9c 60 void onBleInitError(BLE &ble, ble_error_t error)
mbed_official 2:864ddfb70a9c 61 {
mbed_official 2:864ddfb70a9c 62 /* Initialization error handling should go here */
mbed_official 2:864ddfb70a9c 63 }
mbed_official 2:864ddfb70a9c 64
mbed_official 2:864ddfb70a9c 65 /**
mbed_official 2:864ddfb70a9c 66 * Callback triggered when the ble initialization process has finished
mbed_official 2:864ddfb70a9c 67 */
mbed_official 2:864ddfb70a9c 68 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
mbed_official 2:864ddfb70a9c 69 {
mbed_official 2:864ddfb70a9c 70 BLE& ble = params->ble;
mbed_official 2:864ddfb70a9c 71 ble_error_t error = params->error;
mbed_official 2:864ddfb70a9c 72
mbed_official 2:864ddfb70a9c 73 if (error != BLE_ERROR_NONE) {
mbed_official 2:864ddfb70a9c 74 /* In case of error, forward the error handling to onBleInitError */
mbed_official 2:864ddfb70a9c 75 onBleInitError(ble, error);
mbed_official 2:864ddfb70a9c 76 return;
mbed_official 2:864ddfb70a9c 77 }
mbed_official 2:864ddfb70a9c 78
mbed_official 2:864ddfb70a9c 79 /* Ensure that it is the default instance of BLE */
mbed_official 2:864ddfb70a9c 80 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
mbed_official 2:864ddfb70a9c 81 return;
mbed_official 2:864ddfb70a9c 82 }
mbed_official 2:864ddfb70a9c 83
mbed_official 2:864ddfb70a9c 84 ble.gap().onDisconnection(disconnectionCallback);
mbed_official 2:864ddfb70a9c 85 ble.gattServer().onDataWritten(onDataWrittenCallback);
mbed_official 2:864ddfb70a9c 86
mbed_official 2:864ddfb70a9c 87 bool initialValueForLEDCharacteristic = false;
mbed_official 2:864ddfb70a9c 88 ledServicePtr = new LEDService(ble, initialValueForLEDCharacteristic);
mbed_official 2:864ddfb70a9c 89
mbed_official 2:864ddfb70a9c 90 /* setup advertising */
mbed_official 2:864ddfb70a9c 91 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
mbed_official 2:864ddfb70a9c 92 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
mbed_official 2:864ddfb70a9c 93 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
mbed_official 2:864ddfb70a9c 94 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
mbed_official 2:864ddfb70a9c 95 ble.gap().setAdvertisingInterval(1000); /* 1000ms. */
mbed_official 2:864ddfb70a9c 96 ble.gap().startAdvertising();
mbed_official 2:864ddfb70a9c 97 }
mbed_official 2:864ddfb70a9c 98
mbed_official 2:864ddfb70a9c 99 void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) {
mbed_official 2:864ddfb70a9c 100 BLE &ble = BLE::Instance();
mbed_official 2:864ddfb70a9c 101 eventQueue.post(Callback<void()>(&ble, &BLE::processEvents));
mbed_official 2:864ddfb70a9c 102 }
mbed_official 2:864ddfb70a9c 103
mbed_official 2:864ddfb70a9c 104 int main()
mbed_official 2:864ddfb70a9c 105 {
mbed_official 2:864ddfb70a9c 106 eventQueue.post_every(500, blinkCallback);
mbed_official 2:864ddfb70a9c 107
mbed_official 2:864ddfb70a9c 108 BLE &ble = BLE::Instance();
mbed_official 2:864ddfb70a9c 109 ble.onEventsToProcess(scheduleBleEventsProcessing);
mbed_official 2:864ddfb70a9c 110 ble.init(bleInitComplete);
mbed_official 2:864ddfb70a9c 111
mbed_official 2:864ddfb70a9c 112 while (true) {
mbed_official 2:864ddfb70a9c 113 eventQueue.dispatch();
mbed_official 2:864ddfb70a9c 114 }
mbed_official 2:864ddfb70a9c 115
mbed_official 2:864ddfb70a9c 116 return 0;
mbed_official 2:864ddfb70a9c 117 }