Jeff Acampora / Mbed 2 deprecated BLE_LED

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   BLE_API mbed nRF51822

main.cpp@0:7d1cfe8dd01c, 2017-02-17 (annotated)

Committer:
jacampora
Date:
Fri Feb 17 07:21:40 2017 +0000
Revision:
0:7d1cfe8dd01c
First commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jacampora 0:7d1cfe8dd01c 1 /* mbed Microcontroller Library
jacampora 0:7d1cfe8dd01c 2 * Copyright (c) 2006-2013 ARM Limited
jacampora 0:7d1cfe8dd01c 3 *
jacampora 0:7d1cfe8dd01c 4 * Licensed under the Apache License, Version 2.0 (the "License");
jacampora 0:7d1cfe8dd01c 5 * you may not use this file except in compliance with the License.
jacampora 0:7d1cfe8dd01c 6 * You may obtain a copy of the License at
jacampora 0:7d1cfe8dd01c 7 *
jacampora 0:7d1cfe8dd01c 8 * http://www.apache.org/licenses/LICENSE-2.0
jacampora 0:7d1cfe8dd01c 9 *
jacampora 0:7d1cfe8dd01c 10 * Unless required by applicable law or agreed to in writing, software
jacampora 0:7d1cfe8dd01c 11 * distributed under the License is distributed on an "AS IS" BASIS,
jacampora 0:7d1cfe8dd01c 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
jacampora 0:7d1cfe8dd01c 13 * See the License for the specific language governing permissions and
jacampora 0:7d1cfe8dd01c 14 * limitations under the License.
jacampora 0:7d1cfe8dd01c 15 */
jacampora 0:7d1cfe8dd01c 16
jacampora 0:7d1cfe8dd01c 17 #include "mbed.h"
jacampora 0:7d1cfe8dd01c 18 #include "ble/BLE.h"
jacampora 0:7d1cfe8dd01c 19 #include "LEDService.h"
jacampora 0:7d1cfe8dd01c 20
jacampora 0:7d1cfe8dd01c 21 DigitalOut alivenessLED(LED1, 0);
jacampora 0:7d1cfe8dd01c 22 DigitalOut actuatedLED(LED2, 0);
jacampora 0:7d1cfe8dd01c 23
jacampora 0:7d1cfe8dd01c 24 const static char DEVICE_NAME[] = "LED";
jacampora 0:7d1cfe8dd01c 25 static const uint16_t uuid16_list[] = {LEDService::LED_SERVICE_UUID};
jacampora 0:7d1cfe8dd01c 26
jacampora 0:7d1cfe8dd01c 27 LEDService *ledServicePtr;
jacampora 0:7d1cfe8dd01c 28
jacampora 0:7d1cfe8dd01c 29 Ticker ticker;
jacampora 0:7d1cfe8dd01c 30
jacampora 0:7d1cfe8dd01c 31 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
jacampora 0:7d1cfe8dd01c 32 {
jacampora 0:7d1cfe8dd01c 33 BLE::Instance().gap().startAdvertising();
jacampora 0:7d1cfe8dd01c 34 }
jacampora 0:7d1cfe8dd01c 35
jacampora 0:7d1cfe8dd01c 36 void periodicCallback(void)
jacampora 0:7d1cfe8dd01c 37 {
jacampora 0:7d1cfe8dd01c 38 alivenessLED = !alivenessLED; /* Do blinky on LED1 to indicate system aliveness. */
jacampora 0:7d1cfe8dd01c 39 }
jacampora 0:7d1cfe8dd01c 40
jacampora 0:7d1cfe8dd01c 41 /**
jacampora 0:7d1cfe8dd01c 42 * This callback allows the LEDService to receive updates to the ledState Characteristic.
jacampora 0:7d1cfe8dd01c 43 *
jacampora 0:7d1cfe8dd01c 44 * @param[in] params
jacampora 0:7d1cfe8dd01c 45 * Information about the characterisitc being updated.
jacampora 0:7d1cfe8dd01c 46 */
jacampora 0:7d1cfe8dd01c 47 void onDataWrittenCallback(const GattWriteCallbackParams *params) {
jacampora 0:7d1cfe8dd01c 48 if ((params->handle == ledServicePtr->getValueHandle()) && (params->len == 1)) {
jacampora 0:7d1cfe8dd01c 49 actuatedLED = *(params->data);
jacampora 0:7d1cfe8dd01c 50 }
jacampora 0:7d1cfe8dd01c 51 }
jacampora 0:7d1cfe8dd01c 52
jacampora 0:7d1cfe8dd01c 53 /**
jacampora 0:7d1cfe8dd01c 54 * This function is called when the ble initialization process has failed
jacampora 0:7d1cfe8dd01c 55 */
jacampora 0:7d1cfe8dd01c 56 void onBleInitError(BLE &ble, ble_error_t error)
jacampora 0:7d1cfe8dd01c 57 {
jacampora 0:7d1cfe8dd01c 58 /* Initialization error handling should go here */
jacampora 0:7d1cfe8dd01c 59 }
jacampora 0:7d1cfe8dd01c 60
jacampora 0:7d1cfe8dd01c 61 /**
jacampora 0:7d1cfe8dd01c 62 * Callback triggered when the ble initialization process has finished
jacampora 0:7d1cfe8dd01c 63 */
jacampora 0:7d1cfe8dd01c 64 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
jacampora 0:7d1cfe8dd01c 65 {
jacampora 0:7d1cfe8dd01c 66 BLE& ble = params->ble;
jacampora 0:7d1cfe8dd01c 67 ble_error_t error = params->error;
jacampora 0:7d1cfe8dd01c 68
jacampora 0:7d1cfe8dd01c 69 if (error != BLE_ERROR_NONE) {
jacampora 0:7d1cfe8dd01c 70 /* In case of error, forward the error handling to onBleInitError */
jacampora 0:7d1cfe8dd01c 71 onBleInitError(ble, error);
jacampora 0:7d1cfe8dd01c 72 return;
jacampora 0:7d1cfe8dd01c 73 }
jacampora 0:7d1cfe8dd01c 74
jacampora 0:7d1cfe8dd01c 75 /* Ensure that it is the default instance of BLE */
jacampora 0:7d1cfe8dd01c 76 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
jacampora 0:7d1cfe8dd01c 77 return;
jacampora 0:7d1cfe8dd01c 78 }
jacampora 0:7d1cfe8dd01c 79
jacampora 0:7d1cfe8dd01c 80 ble.gap().onDisconnection(disconnectionCallback);
jacampora 0:7d1cfe8dd01c 81 ble.gattServer().onDataWritten(onDataWrittenCallback);
jacampora 0:7d1cfe8dd01c 82
jacampora 0:7d1cfe8dd01c 83 bool initialValueForLEDCharacteristic = false;
jacampora 0:7d1cfe8dd01c 84 ledServicePtr = new LEDService(ble, initialValueForLEDCharacteristic);
jacampora 0:7d1cfe8dd01c 85
jacampora 0:7d1cfe8dd01c 86 /* setup advertising */
jacampora 0:7d1cfe8dd01c 87 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
jacampora 0:7d1cfe8dd01c 88 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
jacampora 0:7d1cfe8dd01c 89 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
jacampora 0:7d1cfe8dd01c 90 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
jacampora 0:7d1cfe8dd01c 91 ble.gap().setAdvertisingInterval(1000); /* 1000ms. */
jacampora 0:7d1cfe8dd01c 92 ble.gap().startAdvertising();
jacampora 0:7d1cfe8dd01c 93 }
jacampora 0:7d1cfe8dd01c 94
jacampora 0:7d1cfe8dd01c 95 int main(void)
jacampora 0:7d1cfe8dd01c 96 {
jacampora 0:7d1cfe8dd01c 97 ticker.attach(periodicCallback, 1); /* Blink LED every second */
jacampora 0:7d1cfe8dd01c 98
jacampora 0:7d1cfe8dd01c 99 BLE &ble = BLE::Instance();
jacampora 0:7d1cfe8dd01c 100 ble.init(bleInitComplete);
jacampora 0:7d1cfe8dd01c 101
jacampora 0:7d1cfe8dd01c 102 /* SpinWait for initialization to complete. This is necessary because the
jacampora 0:7d1cfe8dd01c 103 * BLE object is used in the main loop below. */
jacampora 0:7d1cfe8dd01c 104 while (ble.hasInitialized() == false) { /* spin loop */ }
jacampora 0:7d1cfe8dd01c 105
jacampora 0:7d1cfe8dd01c 106 while (true) {
jacampora 0:7d1cfe8dd01c 107 ble.waitForEvent();
jacampora 0:7d1cfe8dd01c 108 }
jacampora 0:7d1cfe8dd01c 109 }