Heart Rate Monitor with security API for Delta BLE platform
Fork of BLE_HeartRate_DELTA by
main.cpp
- Committer:
- silviaChen
- Date:
- 2017-03-28
- Revision:
- 2:0737743120d7
- Parent:
- 1:82331af3e4c9
File content as of revision 2:0737743120d7:
/* mbed Microcontroller Library * Copyright (c) 2006-2015 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "mbed.h" #include "ble/BLE.h" #include "HeartRateSecService.h" #include "ble/services/BatteryService.h" #include "ble/services/DeviceInformationService.h" BLE ble; DigitalOut led1(LED1); Serial uart(USBTX, USBRX, 115200); const static char DEVICE_NAME[] = "DELTA_HRM_SEC"; static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE, GattService::UUID_DEVICE_INFORMATION_SERVICE}; static volatile bool triggerSensorPolling = false; bool isSecuritySuccess = false; uint8_t hrmCounter = 100; // init HRM to 100bps HeartRateSecService *hrSecService; DeviceInformationService *deviceInfo; void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) { ble.gap().startAdvertising(); // restart advertising } void periodicCallback(void) { led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */ /* Note that the periodicCallback() executes in interrupt context, so it is safer to do * heavy-weight sensor polling from the main thread. */ triggerSensorPolling = true; } void passkeyDisplayCallback(Gap::Handle_t handle, const SecurityManager::Passkey_t passkey) { uart.printf("Input passKey: "); for (unsigned i = 0; i < Gap::ADDR_LEN; i++) { uart.printf("%c ", passkey[i]); } uart.printf("\r\n"); } void securitySetupCompletedCallback(Gap::Handle_t handle, SecurityManager::SecurityCompletionStatus_t status) { if (status == SecurityManager::SEC_STATUS_SUCCESS) { uart.printf("Security success\r\n"); isSecuritySuccess = true; } else { uart.printf("Security failed\r\n"); isSecuritySuccess = false; ble.gap().disconnect(Gap::LOCAL_HOST_TERMINATED_CONNECTION); } } void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) { BLE &ble = params->ble; ble_error_t error = params->error; if (error != BLE_ERROR_NONE) { return; } /* Initialize BLE security */ bool enableBonding = true; bool requireMITM = true; //Need passkey uint8_t pKey[6] = {'0', '0', '0', '0', '0', '0'}; //set the passkey ble.securityManager().init(enableBonding, requireMITM, SecurityManager::IO_CAPS_DISPLAY_ONLY, pKey); ble.gap().onDisconnection(disconnectionCallback); ble.securityManager().onPasskeyDisplay(passkeyDisplayCallback); ble.securityManager().onSecuritySetupCompleted(securitySetupCompletedCallback); /* Setup primary service. */ hrSecService = new HeartRateSecService(ble, hrmCounter, HeartRateSecService::LOCATION_FINGER); /* Setup auxiliary service. */ deviceInfo = new DeviceInformationService(ble, "DELTA", "NQ620", "SN1", "hw-rev1", "fw-rev1", "soft-rev1"); /* Setup advertising. */ ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_HEART_RATE_SENSOR); ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); ble.gap().setAdvertisingInterval(1000); /* 1000ms */ ble.gap().startAdvertising(); } int main(void) { led1 = 1; Ticker ticker; ticker.attach(periodicCallback, 1); // blink LED every second ble.init(bleInitComplete); /* SpinWait for initialization to complete. This is necessary because the * BLE object is used in the main loop below. */ while (ble.hasInitialized() == false) { /* spin loop */ } ble.setTxPower(0); // infinite loop while (1) { // check for trigger from periodicCallback() if (triggerSensorPolling && ble.getGapState().connected && isSecuritySuccess) { triggerSensorPolling = false; // Do blocking calls or whatever is necessary for sensor polling. // In our case, we simply update the HRM measurement. hrmCounter++; if (hrmCounter == 175) { // 100 <= HRM bps <=175 hrmCounter = 100; } hrSecService->updateHeartRate(hrmCounter); } else { ble.waitForEvent(); // low power wait for event } } }