BLE heartRate demo with security
Dependencies: BLE_API mbed nRF51822
main.cpp
- Committer:
- sunsmile2015
- Date:
- 2015-06-02
- Revision:
- 1:52c48814da8e
- Parent:
- 0:4f367a344480
- Child:
- 2:2d9d4b271af8
File content as of revision 1:52c48814da8e:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 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 "BLEDevice.h" #include "HeartRateService.h" #include "DeviceInformationService.h" /* Enable the following if you need to throttle the connection interval. This has * the effect of reducing energy consumption after a connection is made; * particularly for applications where the central may want a fast connection * interval.*/ #define UPDATE_PARAMS_FOR_LONGER_CONNECTION_INTERVAL 0 BLEDevice ble; DigitalOut led1(LED1); const static char DEVICE_NAME[] = "HRM1"; static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE, GattService::UUID_DEVICE_INFORMATION_SERVICE}; static volatile bool triggerSensorPolling = false; void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason) { ble.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; } uint8_t KEY[6] = {0x01, 0x02, 0x00, 0x00, 0x00, 0x00}; void connectionCallback(Gap::Handle_t handle, Gap::addr_type_t peerAddrType, const Gap::Address_t peerAddr, Gap::addr_type_t ownAddrType, const Gap::Address_t ownAddr, const Gap::ConnectionParams_t * pParam) { printf("connected!\r\n"); } void passkeyDisplayCallback(Gap::Handle_t handle, const Gap::Passkey_t passkey) { uint8_t i; printf("Input passKey: "); for(i = 0; i < 6; i++) { printf("%d ", passkey[i]); } } int main(void) { led1 = 1; Ticker ticker; ticker.attach(periodicCallback, 1); // blink LED every second printf("Started\r\n"); ble.init(); ble.initializeSecurity(true, true, Gap::IO_CAPS_DISPLAY_ONLY, NULL); //ble.initializeSecurity(); ble.onConnection(connectionCallback); ble.onDisconnection(disconnectionCallback); ble.onPasskeyDisplay(passkeyDisplayCallback); /* Setup primary service. */ uint8_t hrmCounter = 100; // init HRM to 100bps HeartRateService hrService(ble, hrmCounter, HeartRateService::LOCATION_FINGER); /* Setup auxiliary service. */ DeviceInformationService deviceInfo(ble, "ARM", "Model1", "SN1", "hw-rev1", "fw-rev1", "soft-rev1"); /* Setup advertising. */ ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); ble.accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_HEART_RATE_SENSOR); ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); ble.setAdvertisingInterval(1000); ble.startAdvertising(); // infinite loop while (1) { // check for trigger from periodicCallback() if (triggerSensorPolling && ble.getGapState().connected) { triggerSensorPolling = false; // Do blocking calls or whatever is necessary for sensor polling. // In our case, we simply update the HRM measurement. hrmCounter++; // 100 <= HRM bps <=175 if (hrmCounter == 175) { hrmCounter = 100; } // update bps hrService.updateHeartRate(hrmCounter); } else { ble.waitForEvent(); // low power wait for event } } }