Followed lateest libraries (BLE ,mbed and nRF51822)
Dependencies: BLE_API mbed nRF51822 BLE_HTM_by_InTempSensr_pub
Dependents: BLE_HTM_by_InTempSensr_pub
Fork of BLE_HTM_by_InTempSensr by
main.cpp
- Committer:
- takafuminaka
- Date:
- 2015-08-26
- Revision:
- 7:b8e9a93ba3b5
- Parent:
- 6:182013fa5592
- Child:
- 8:ae7255b477e6
File content as of revision 7:b8e9a93ba3b5:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * Copyright (c) 2014-2015 T.Naka * * 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 "ble_hrs.h" // #include "ble_hts.h" #include "nrf_soc.h" // for internal Thermo sensoer // nRF51822n nrf; /* BLE radio driver */ BLEDevice ble; DigitalOut led1(LED1); DigitalOut led2(LED2); uint8_t cnt; #define NEED_CONSOLE_OUTPUT 0 /* Set this if you need debug messages on the console; * it will have an impact on code-size and power consumption. */ #if NEED_CONSOLE_OUTPUT Serial pc(USBTX, USBRX); #define DEBUG(...) { pc.printf(__VA_ARGS__); } #else #define DEBUG(...) /* nothing */ #endif /* #if NEED_CONSOLE_OUTPUT */ const static char DEVICE_NAME[] = "BLE-ITHTM"; /* Health Thermometer Service */ /* Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.health_thermometer.xml */ /* HTM Char: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.temperature_measurement.xml */ uint8_t thermTempPayload[5] = { 0, 0, 0, 0, 0 }; GattCharacteristic tempChar (GattCharacteristic::UUID_TEMPERATURE_MEASUREMENT_CHAR, thermTempPayload, sizeof(thermTempPayload), sizeof(thermTempPayload), GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_INDICATE); GattCharacteristic *htmChars[] = {&tempChar, }; GattService htmService(GattService::UUID_HEALTH_THERMOMETER_SERVICE, htmChars, sizeof(htmChars) / sizeof(GattCharacteristic *)); /* Battery Level Service */ uint8_t batt = 98; /* Battery level */ uint8_t read_batt = 0; /* Variable to hold battery level reads */ static uint8_t bpm2[1] = {batt}; GattCharacteristic battLevel ( GattCharacteristic::UUID_BATTERY_LEVEL_CHAR, bpm2, sizeof(bpm2), sizeof(bpm2), GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ); GattCharacteristic *battChars[] = {&battLevel, }; GattService battService(GattService::UUID_BATTERY_SERVICE, battChars, sizeof(battChars) / sizeof(GattCharacteristic *)); static const uint16_t uuid16_list[] = {GattService::UUID_HEALTH_THERMOMETER_SERVICE, GattService::UUID_BATTERY_SERVICE, GattService::UUID_HEALTH_THERMOMETER_SERVICE + 0x1000 }; static volatile bool triggerSensorPolling = false; /* set to high periodically to indicate to the main thread that * polling is necessary. */ static Gap::ConnectionParams_t connectionParams; uint32_t quick_ieee11073_from_float(float temperature); void Update_Values(); void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason) // Mod { DEBUG("Disconnected handle %u!\n\r", handle); DEBUG("Restarting the advertising process\n\r"); led2 = 0; ble.gap().startAdvertising(); } void onConnectionCallback(const Gap::ConnectionCallbackParams_t *params) { DEBUG("connected. Got handle %u\r\n", params->handle); connectionParams.slaveLatency = 1; led2 = 1; if (ble.gap().updateConnectionParams(params->handle, &connectionParams) != BLE_ERROR_NONE) { DEBUG("failed to update connection paramter\r\n"); } } /** * Triggered periodically by the 'ticker' interrupt. */ void periodicCallback(void) { led1 = !led1; triggerSensorPolling = true; // triggerSensorPolling = true; /* Note that the periodicCallback() executes in // * interrupt context, so it is safer to do // * heavy-weight sensor polling from the main // * thread.*/ } int main(void) { led1 = 1; led2 = 1; wait(3); led1 = 0; led2 = 0; Ticker ticker; ticker.attach(periodicCallback, 1.0 ); DEBUG("Initialising the nRF51822\n\r"); ble.init(); ble.gap().onDisconnection(disconnectionCallback); ble.gap().onConnection(onConnectionCallback); ble.gap().getPreferredConnectionParams(&connectionParams); /* 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_THERMOMETER); ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); ble.gap().setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */ ble.gap().startAdvertising(); ble.gattServer().addService(htmService); ble.gattServer().addService(battService); while (true) { if (triggerSensorPolling) { triggerSensorPolling = false; Update_Values(); } else { ble.waitForEvent(); } } } void Update_Values() { /* Update the temperature. Note that we need to convert to an ieee11073 format float. */ int32_t p_temp; sd_temp_get(&p_temp); float temperature = float(p_temp)/4.; temperature -= 14.; // It should be changed device by device. DEBUG("temp:%f\n\r", temperature); uint32_t temp_ieee11073 = quick_ieee11073_from_float(temperature); memcpy(thermTempPayload+1, &temp_ieee11073, 4); /* Battery Service Update */ /* Update battery level */ //ble.getGattServer().updateValue(battLevel.handle, (uint8_t*)&batt, sizeof(batt)); /* Decrement the battery level. */ batt <=50 ? batt=100 : batt--;; bpm2[0] = batt; if (ble.gap().getState().connected ) { ble.gattServer().write(tempChar.getValueAttribute().getHandle(), thermTempPayload, sizeof(thermTempPayload)); ble.gattServer().write(battLevel.getValueAttribute().getHandle(), (uint8_t *)&batt, sizeof(batt)); } } /** * @brief A very quick conversion between a float temperature and 11073-20601 FLOAT-Type. * @param temperature The temperature as a float. * @return The temperature in 11073-20601 FLOAT-Type format. */ uint32_t quick_ieee11073_from_float(float temperature) { uint8_t exponent = 0xFE; //exponent is -2 uint32_t mantissa = (uint32_t)(temperature*100); return ( ((uint32_t)exponent) << 24) | mantissa; }