kleber vieira / Mbed 2 deprecated BLE_Thermometer

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Dependencies:   BLE_API mbed nRF51822 X_NUCLEO_IDB0XA1

main.cpp@0:7bbabab69671, 2017-12-13 (annotated)

Committer:
klebermagno
Date:
Wed Dec 13 16:31:36 2017 +0000
Revision:
0:7bbabab69671
1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
klebermagno 0:7bbabab69671 1 /* mbed Microcontroller Library
klebermagno 0:7bbabab69671 2 * Copyright (c) 2006-2013 ARM Limited
klebermagno 0:7bbabab69671 3 *
klebermagno 0:7bbabab69671 4 * Licensed under the Apache License, Version 2.0 (the "License");
klebermagno 0:7bbabab69671 5 * you may not use this file except in compliance with the License.
klebermagno 0:7bbabab69671 6 * You may obtain a copy of the License at
klebermagno 0:7bbabab69671 7 *
klebermagno 0:7bbabab69671 8 * http://www.apache.org/licenses/LICENSE-2.0
klebermagno 0:7bbabab69671 9 *
klebermagno 0:7bbabab69671 10 * Unless required by applicable law or agreed to in writing, software
klebermagno 0:7bbabab69671 11 * distributed under the License is distributed on an "AS IS" BASIS,
klebermagno 0:7bbabab69671 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
klebermagno 0:7bbabab69671 13 * See the License for the specific language governing permissions and
klebermagno 0:7bbabab69671 14 * limitations under the License.
klebermagno 0:7bbabab69671 15 */
klebermagno 0:7bbabab69671 16
klebermagno 0:7bbabab69671 17 #include "mbed.h"
klebermagno 0:7bbabab69671 18 #include "ble/BLE.h"
klebermagno 0:7bbabab69671 19 #include "ble/services/HealthThermometerService.h"
klebermagno 0:7bbabab69671 20
klebermagno 0:7bbabab69671 21 DigitalOut led1(LED1);
klebermagno 0:7bbabab69671 22
klebermagno 0:7bbabab69671 23 static HealthThermometerService *thermometerServicePtr;
klebermagno 0:7bbabab69671 24
klebermagno 0:7bbabab69671 25 static const char DEVICE_NAME[] = "Therm";
klebermagno 0:7bbabab69671 26 static const uint16_t uuid16_list[] = {GattService::UUID_HEALTH_THERMOMETER_SERVICE};
klebermagno 0:7bbabab69671 27 static volatile bool triggerSensorPolling = false;
klebermagno 0:7bbabab69671 28 static float currentTemperature = 39.6;
klebermagno 0:7bbabab69671 29
klebermagno 0:7bbabab69671 30 /* Restart Advertising on disconnection*/
klebermagno 0:7bbabab69671 31 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
klebermagno 0:7bbabab69671 32 {
klebermagno 0:7bbabab69671 33 BLE::Instance().gap().startAdvertising();
klebermagno 0:7bbabab69671 34 }
klebermagno 0:7bbabab69671 35
klebermagno 0:7bbabab69671 36 void periodicCallback(void)
klebermagno 0:7bbabab69671 37 {
klebermagno 0:7bbabab69671 38 led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
klebermagno 0:7bbabab69671 39
klebermagno 0:7bbabab69671 40 /* Note that the periodicCallback() executes in interrupt context, so it is safer to do
klebermagno 0:7bbabab69671 41 * heavy-weight sensor polling from the main thread. */
klebermagno 0:7bbabab69671 42 triggerSensorPolling = true;
klebermagno 0:7bbabab69671 43 }
klebermagno 0:7bbabab69671 44
klebermagno 0:7bbabab69671 45 /**
klebermagno 0:7bbabab69671 46 * This function is called when the ble initialization process has failed
klebermagno 0:7bbabab69671 47 */
klebermagno 0:7bbabab69671 48 void onBleInitError(BLE &ble, ble_error_t error)
klebermagno 0:7bbabab69671 49 {
klebermagno 0:7bbabab69671 50 /* Avoid compiler warnings */
klebermagno 0:7bbabab69671 51 (void) ble;
klebermagno 0:7bbabab69671 52 (void) error;
klebermagno 0:7bbabab69671 53 /* Initialization error handling should go here */
klebermagno 0:7bbabab69671 54 }
klebermagno 0:7bbabab69671 55
klebermagno 0:7bbabab69671 56 /**
klebermagno 0:7bbabab69671 57 * Callback triggered when the ble initialization process has finished
klebermagno 0:7bbabab69671 58 */
klebermagno 0:7bbabab69671 59 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
klebermagno 0:7bbabab69671 60 {
klebermagno 0:7bbabab69671 61 BLE& ble = params->ble;
klebermagno 0:7bbabab69671 62 ble_error_t error = params->error;
klebermagno 0:7bbabab69671 63
klebermagno 0:7bbabab69671 64 if (error != BLE_ERROR_NONE) {
klebermagno 0:7bbabab69671 65 /* In case of error, forward the error handling to onBleInitError */
klebermagno 0:7bbabab69671 66 onBleInitError(ble, error);
klebermagno 0:7bbabab69671 67 return;
klebermagno 0:7bbabab69671 68 }
klebermagno 0:7bbabab69671 69
klebermagno 0:7bbabab69671 70 /* Ensure that it is the default instance of BLE */
klebermagno 0:7bbabab69671 71 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
klebermagno 0:7bbabab69671 72 return;
klebermagno 0:7bbabab69671 73 }
klebermagno 0:7bbabab69671 74
klebermagno 0:7bbabab69671 75 ble.gap().onDisconnection(disconnectionCallback);
klebermagno 0:7bbabab69671 76
klebermagno 0:7bbabab69671 77 /* Setup primary service. */
klebermagno 0:7bbabab69671 78 thermometerServicePtr = new HealthThermometerService(ble, currentTemperature, HealthThermometerService::LOCATION_EAR);
klebermagno 0:7bbabab69671 79
klebermagno 0:7bbabab69671 80 /* setup advertising */
klebermagno 0:7bbabab69671 81 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
klebermagno 0:7bbabab69671 82 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
klebermagno 0:7bbabab69671 83 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::THERMOMETER_EAR);
klebermagno 0:7bbabab69671 84 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
klebermagno 0:7bbabab69671 85 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
klebermagno 0:7bbabab69671 86 ble.gap().setAdvertisingInterval(1000); /* 1000ms */
klebermagno 0:7bbabab69671 87 ble.gap().startAdvertising();
klebermagno 0:7bbabab69671 88 }
klebermagno 0:7bbabab69671 89
klebermagno 0:7bbabab69671 90 int main(void)
klebermagno 0:7bbabab69671 91 {
klebermagno 0:7bbabab69671 92 led1 = 1;
klebermagno 0:7bbabab69671 93 Ticker ticker;
klebermagno 0:7bbabab69671 94 ticker.attach(periodicCallback, 1);
klebermagno 0:7bbabab69671 95
klebermagno 0:7bbabab69671 96 BLE &ble = BLE::Instance();
klebermagno 0:7bbabab69671 97 ble.init(bleInitComplete);
klebermagno 0:7bbabab69671 98
klebermagno 0:7bbabab69671 99 /* SpinWait for initialization to complete. This is necessary because the
klebermagno 0:7bbabab69671 100 * BLE object is used in the main loop below. */
klebermagno 0:7bbabab69671 101 while (ble.hasInitialized() == false) { /* spin loop */ }
klebermagno 0:7bbabab69671 102
klebermagno 0:7bbabab69671 103 while (true) {
klebermagno 0:7bbabab69671 104 if (triggerSensorPolling && ble.gap().getState().connected) {
klebermagno 0:7bbabab69671 105 triggerSensorPolling = false;
klebermagno 0:7bbabab69671 106
klebermagno 0:7bbabab69671 107 /* In our case, we simply update the dummy temperature measurement. */
klebermagno 0:7bbabab69671 108 currentTemperature += 0.1;
klebermagno 0:7bbabab69671 109 thermometerServicePtr->updateTemperature(currentTemperature);
klebermagno 0:7bbabab69671 110 } else {
klebermagno 0:7bbabab69671 111 ble.waitForEvent();
klebermagno 0:7bbabab69671 112 }
klebermagno 0:7bbabab69671 113 }
klebermagno 0:7bbabab69671 114 }