FalaFam / Mbed 2 deprecated Amaldi_6_Exercise_BLE_UART_IDB0XA1

Exercise 6 BLE UART

Dependencies:   BLE_API X_NUCLEO_IDB0XA1 mbed

Fork of Amaldi_6_BLE_UART_IDB0XA1 by Amaldi

main.cpp@0:aae2d6c2a9eb, 2016-01-07 (annotated)

Committer:
apalmieri
Date:
Thu Jan 07 16:31:02 2016 +0000
Revision:
0:aae2d6c2a9eb
Child:
3:e0efdb741bd4
A simple demo driving an LED through a BLE service

Who changed what in which revision?

UserRevisionLine numberNew contents of line
apalmieri 0:aae2d6c2a9eb 1 /* mbed Microcontroller Library
apalmieri 0:aae2d6c2a9eb 2 * Copyright (c) 2006-2013 ARM Limited
apalmieri 0:aae2d6c2a9eb 3 *
apalmieri 0:aae2d6c2a9eb 4 * Licensed under the Apache License, Version 2.0 (the "License");
apalmieri 0:aae2d6c2a9eb 5 * you may not use this file except in compliance with the License.
apalmieri 0:aae2d6c2a9eb 6 * You may obtain a copy of the License at
apalmieri 0:aae2d6c2a9eb 7 *
apalmieri 0:aae2d6c2a9eb 8 * http://www.apache.org/licenses/LICENSE-2.0
apalmieri 0:aae2d6c2a9eb 9 *
apalmieri 0:aae2d6c2a9eb 10 * Unless required by applicable law or agreed to in writing, software
apalmieri 0:aae2d6c2a9eb 11 * distributed under the License is distributed on an "AS IS" BASIS,
apalmieri 0:aae2d6c2a9eb 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
apalmieri 0:aae2d6c2a9eb 13 * See the License for the specific language governing permissions and
apalmieri 0:aae2d6c2a9eb 14 * limitations under the License.
apalmieri 0:aae2d6c2a9eb 15 */
apalmieri 0:aae2d6c2a9eb 16
apalmieri 0:aae2d6c2a9eb 17 #include "mbed.h"
apalmieri 0:aae2d6c2a9eb 18 #include "ble/BLE.h"
apalmieri 0:aae2d6c2a9eb 19 #include "LEDService.h"
apalmieri 0:aae2d6c2a9eb 20
apalmieri 0:aae2d6c2a9eb 21 DigitalOut actuatedLED(LED1, 0);
apalmieri 0:aae2d6c2a9eb 22
apalmieri 0:aae2d6c2a9eb 23 const static char DEVICE_NAME[] = "LED";
apalmieri 0:aae2d6c2a9eb 24 static const uint16_t uuid16_list[] = {LEDService::LED_SERVICE_UUID};
apalmieri 0:aae2d6c2a9eb 25
apalmieri 0:aae2d6c2a9eb 26 LEDService *ledServicePtr;
apalmieri 0:aae2d6c2a9eb 27
apalmieri 0:aae2d6c2a9eb 28 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
apalmieri 0:aae2d6c2a9eb 29 {
apalmieri 0:aae2d6c2a9eb 30 (void)params;
apalmieri 0:aae2d6c2a9eb 31 BLE::Instance().gap().startAdvertising();
apalmieri 0:aae2d6c2a9eb 32 }
apalmieri 0:aae2d6c2a9eb 33
apalmieri 0:aae2d6c2a9eb 34 /**
apalmieri 0:aae2d6c2a9eb 35 * This callback allows the LEDService to receive updates to the ledState Characteristic.
apalmieri 0:aae2d6c2a9eb 36 *
apalmieri 0:aae2d6c2a9eb 37 * @param[in] params
apalmieri 0:aae2d6c2a9eb 38 * Information about the characterisitc being updated.
apalmieri 0:aae2d6c2a9eb 39 */
apalmieri 0:aae2d6c2a9eb 40 void onDataWrittenCallback(const GattWriteCallbackParams *params) {
apalmieri 0:aae2d6c2a9eb 41 if ((params->handle == ledServicePtr->getValueHandle()) && (params->len == 1)) {
apalmieri 0:aae2d6c2a9eb 42 actuatedLED = *(params->data);
apalmieri 0:aae2d6c2a9eb 43 }
apalmieri 0:aae2d6c2a9eb 44 }
apalmieri 0:aae2d6c2a9eb 45
apalmieri 0:aae2d6c2a9eb 46 /**
apalmieri 0:aae2d6c2a9eb 47 * This function is called when the ble initialization process has failled
apalmieri 0:aae2d6c2a9eb 48 */
apalmieri 0:aae2d6c2a9eb 49 void onBleInitError(BLE &ble, ble_error_t error)
apalmieri 0:aae2d6c2a9eb 50 {
apalmieri 0:aae2d6c2a9eb 51 /* Initialization error handling should go here */
apalmieri 0:aae2d6c2a9eb 52 }
apalmieri 0:aae2d6c2a9eb 53
apalmieri 0:aae2d6c2a9eb 54 /**
apalmieri 0:aae2d6c2a9eb 55 * Callback triggered when the ble initialization process has finished
apalmieri 0:aae2d6c2a9eb 56 */
apalmieri 0:aae2d6c2a9eb 57 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
apalmieri 0:aae2d6c2a9eb 58 {
apalmieri 0:aae2d6c2a9eb 59 BLE& ble = params->ble;
apalmieri 0:aae2d6c2a9eb 60 ble_error_t error = params->error;
apalmieri 0:aae2d6c2a9eb 61
apalmieri 0:aae2d6c2a9eb 62 if (error != BLE_ERROR_NONE) {
apalmieri 0:aae2d6c2a9eb 63 /* In case of error, forward the error handling to onBleInitError */
apalmieri 0:aae2d6c2a9eb 64 onBleInitError(ble, error);
apalmieri 0:aae2d6c2a9eb 65 return;
apalmieri 0:aae2d6c2a9eb 66 }
apalmieri 0:aae2d6c2a9eb 67
apalmieri 0:aae2d6c2a9eb 68 /* Ensure that it is the default instance of BLE */
apalmieri 0:aae2d6c2a9eb 69 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
apalmieri 0:aae2d6c2a9eb 70 return;
apalmieri 0:aae2d6c2a9eb 71 }
apalmieri 0:aae2d6c2a9eb 72
apalmieri 0:aae2d6c2a9eb 73 ble.gap().onDisconnection(disconnectionCallback);
apalmieri 0:aae2d6c2a9eb 74 ble.gattServer().onDataWritten(onDataWrittenCallback);
apalmieri 0:aae2d6c2a9eb 75
apalmieri 0:aae2d6c2a9eb 76 bool initialValueForLEDCharacteristic = true;
apalmieri 0:aae2d6c2a9eb 77 LEDService ledService(ble, initialValueForLEDCharacteristic);
apalmieri 0:aae2d6c2a9eb 78 ledServicePtr = &ledService;
apalmieri 0:aae2d6c2a9eb 79
apalmieri 0:aae2d6c2a9eb 80 /* setup advertising */
apalmieri 0:aae2d6c2a9eb 81 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
apalmieri 0:aae2d6c2a9eb 82 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
apalmieri 0:aae2d6c2a9eb 83 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
apalmieri 0:aae2d6c2a9eb 84 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
apalmieri 0:aae2d6c2a9eb 85 ble.gap().setAdvertisingInterval(1000); /* 1000ms. */
apalmieri 0:aae2d6c2a9eb 86 ble.gap().startAdvertising();
apalmieri 0:aae2d6c2a9eb 87
apalmieri 0:aae2d6c2a9eb 88 while (true) {
apalmieri 0:aae2d6c2a9eb 89 ble.waitForEvent();
apalmieri 0:aae2d6c2a9eb 90 }
apalmieri 0:aae2d6c2a9eb 91 }
apalmieri 0:aae2d6c2a9eb 92
apalmieri 0:aae2d6c2a9eb 93 int main(void)
apalmieri 0:aae2d6c2a9eb 94 {
apalmieri 0:aae2d6c2a9eb 95 BLE &ble = BLE::Instance();
apalmieri 0:aae2d6c2a9eb 96
apalmieri 0:aae2d6c2a9eb 97 ble.init(bleInitComplete);
apalmieri 0:aae2d6c2a9eb 98 }
apalmieri 0:aae2d6c2a9eb 99