mbed code for UberVest health monitoring
Dependencies: BLE_API mbed nRF51822
main.cpp
- Committer:
- haydenball
- Date:
- 2015-10-26
- Revision:
- 5:40fcfb34e48f
- Parent:
- 4:851d3f52c344
- Child:
- 6:808cfc0b9480
File content as of revision 5:40fcfb34e48f:
/* 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 "BLE.h" #include "UberVestService.h" // Outputs DigitalOut connectionLed(LED1); DigitalOut led2(LED2); // Inputs InterruptIn button(BUTTON1); AnalogIn ecg(p1); BLE ble; const static char DEVICE_NAME[] = "UberVest"; static const uint16_t uuid16_list[] = {UberVestService::UBER_VEST_SERVICE_UUID}; enum { RELEASED = 0, PRESSED, IDLE }; static uint8_t buttonState = IDLE; static int8_t ecgValue; static volatile bool sample = false; UberVestService *uberVestServicePtr; void buttonPressedCallback(void) { /* Note that the buttonPressedCallback() executes in interrupt context, so it is safer to access * BLE device API from the main thread. */ buttonState = PRESSED; } void buttonReleasedCallback(void) { /* Note that the buttonReleasedCallback() executes in interrupt context, so it is safer to access * BLE device API from the main thread. */ buttonState = RELEASED; } void connectionCallback(const Gap::ConnectionCallbackParams_t *params) { connectionLed = 1; } void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) { ble.gap().startAdvertising(); connectionLed = 0; } void sampleTimer(void) { led2 = !led2; sample = true; } int main(void) { button.fall(buttonPressedCallback); button.rise(buttonReleasedCallback); ble.init(); ble.gap().onConnection(connectionCallback); ble.gap().onDisconnection(disconnectionCallback); UberVestService uberVestService(ble, false /* initial value for button pressed */, 0); uberVestServicePtr = &uberVestService; Ticker sampler; sampler.attach(sampleTimer, 0.02); /* 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::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(); while (true) { if (buttonState!=IDLE) { uberVestServicePtr->updateButtonState(buttonState); buttonState = IDLE; } if (ble.getGapState().connected && sample) { sample = false; ecgValue = (ecg.read() * 1024); uberVestServicePtr->updateEcg(ecgValue); } else { ble.waitForEvent(); } } }