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-rw-r--r--examples/tinyb/hellotinyb.cpp214
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diff --git a/examples/tinyb/hellotinyb.cpp b/examples/tinyb/hellotinyb.cpp
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-/*
- * Author: Petre Eftime <[email protected]>
- * Copyright (c) 2015 Intel Corporation.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <tinyb.hpp>
-
-#include <vector>
-#include <iostream>
-#include <thread>
-#include <atomic>
-#include <csignal>
-
-using namespace tinyb;
-
-/** Converts a raw temperature read from the sensor to a Celsius value.
- * @param[in] raw_temp The temperature read from the sensor (two bytes)
- * @return The Celsius value of the temperature
- */
-static float celsius_temp(uint16_t raw_temp)
-{
- const float SCALE_LSB = 0.03125;
- return ((float)(raw_temp >> 2)) * SCALE_LSB;
-}
-
-
-std::atomic<bool> running(true);
-
-void signal_handler(int signum)
-{
- if (signum == SIGINT) {
- running = false;
- }
-}
-
-/** This program reads the temperature from a
- * TI Sensor Tag(http://www.ti.com/ww/en/wireless_connectivity/sensortag2015/?INTC=SensorTag&HQS=sensortag)
- * Pass the MAC address of the sensor as the first parameter of the program.
- */
-int main(int argc, char **argv)
-{
- if (argc < 2) {
- std::cerr << "Run as: " << argv[0] << " <device_address>" << std::endl;
- exit(1);
- }
-
- BluetoothManager *manager = nullptr;
- try {
- manager = BluetoothManager::get_bluetooth_manager();
- } catch(const std::runtime_error& e) {
- std::cerr << "Error while initializing libtinyb: " << e.what() << std::endl;
- exit(1);
- }
-
- /* Start the discovery of devices */
- bool ret = manager->start_discovery();
- std::cout << "Started = " << (ret ? "true" : "false") << std::endl;
-
- BluetoothDevice *sensor_tag = NULL;
- BluetoothGattService *temperature_service = NULL;
-
- for (int i = 0; i < 15; ++i) {
- std::cout << "Discovered devices: " << std::endl;
- /* Get the list of devices */
- auto list = manager->get_devices();
-
- for (auto it = list.begin(); it != list.end(); ++it) {
-
- std::cout << "Class = " << (*it)->get_class_name() << " ";
- std::cout << "Path = " << (*it)->get_object_path() << " ";
- std::cout << "Name = " << (*it)->get_name() << " ";
- std::cout << "Connected = " << (*it)->get_connected() << " ";
- std::cout << std::endl;
-
- /* Search for the device with the address given as a parameter to the program */
- if ((*it)->get_address() == argv[1])
- sensor_tag = (*it).release();
- }
-
- /* Free the list of devices and stop if the device was found */
- if (sensor_tag != nullptr)
- break;
- /* If not, wait and try again */
- std::this_thread::sleep_for(std::chrono::seconds(4));
- std::cout << std::endl;
- }
-
- /* Stop the discovery (the device was found or number of tries ran out */
- ret = manager->stop_discovery();
- std::cout << "Stopped = " << (ret ? "true" : "false") << std::endl;
-
- if (sensor_tag == nullptr) {
- std::cout << "Could not find device " << argv[1] << std::endl;
- return 1;
- }
-
- /* Connect to the device and get the list of services exposed by it */
- sensor_tag->connect();
- std::cout << "Discovered services: " << std::endl;
- while (true) {
- /* Wait for the device to come online */
- std::this_thread::sleep_for(std::chrono::seconds(4));
-
- auto list = sensor_tag->get_services();
- if (list.empty())
- continue;
-
- for (auto it = list.begin(); it != list.end(); ++it) {
- std::cout << "Class = " << (*it)->get_class_name() << " ";
- std::cout << "Path = " << (*it)->get_object_path() << " ";
- std::cout << "UUID = " << (*it)->get_uuid() << " ";
- std::cout << "Device = " << (*it)->get_device().get_object_path() << " ";
- std::cout << std::endl;
-
- /* Search for the temperature service, by UUID */
- if ((*it)->get_uuid() == "f000aa00-0451-4000-b000-000000000000")
- temperature_service = (*it).release();
- }
- break;
- }
-
- if (temperature_service == nullptr) {
- std::cout << "Could not find service f000aa00-0451-4000-b000-000000000000" << std::endl;
- return 1;
- }
-
- BluetoothGattCharacteristic *temp_value = nullptr;
- BluetoothGattCharacteristic *temp_config = nullptr;
- BluetoothGattCharacteristic *temp_period = nullptr;
-
- /* If there is a temperature service on the device with the given UUID,
- * get it's characteristics, by UUID again */
- auto list = temperature_service->get_characteristics();
- std::cout << "Discovered characteristics: " << std::endl;
- for (auto it = list.begin(); it != list.end(); ++it) {
-
- std::cout << "Class = " << (*it)->get_class_name() << " ";
- std::cout << "Path = " << (*it)->get_object_path() << " ";
- std::cout << "UUID = " << (*it)->get_uuid() << " ";
- std::cout << "Service = " << (*it)->get_service().get_object_path() << " ";
- std::cout << std::endl;
-
- if ((*it)->get_uuid() == "f000aa01-0451-4000-b000-000000000000")
- temp_value = (*it).release();
- else if ((*it)->get_uuid() =="f000aa02-0451-4000-b000-000000000000")
- temp_config = (*it).release();
- else if ((*it)->get_uuid() == "f000aa03-0451-4000-b000-000000000000")
- temp_period = (*it).release();
- }
-
- if (temp_config == nullptr || temp_value == nullptr || temp_period == nullptr) {
- std::cout << "Could not find characteristics." << std::endl;
- return 1;
- }
-
- /* Activate the temperature measurements */
- try {
- std::vector<unsigned char> config_on {0x01};
- temp_config->write_value(config_on);
- while (running) {
- /* Read temperature data and display it */
- std::vector<unsigned char> response = temp_value->read_value();
- unsigned char *data;
- unsigned int size = response.size();
- if (size > 0) {
- data = response.data();
-
- std::cout << "Raw data=[";
- for (unsigned i = 0; i < response.size(); i++)
- std::cout << std::hex << static_cast<int>(data[i]) << ", ";
- std::cout << "] ";
-
- uint16_t ambient_temp, object_temp;
- object_temp = data[0] | (data[1] << 8);
- ambient_temp = data[2] | (data[3] << 8);
-
- std::cout << "Ambient temp: " << celsius_temp(ambient_temp) << "C ";
- std::cout << "Object temp: " << celsius_temp(object_temp) << "C ";
- std::cout << std::endl;
- }
-
- std::this_thread::sleep_for(std::chrono::seconds(1));
- }
- } catch (std::exception &e) {
- std::cout << "Error: " << e.what() << std::endl;
- }
-
- /* Disconnect from the device */
- try {
- sensor_tag->disconnect();
- } catch (std::exception &e) {
- std::cout << "Error: " << e.what() << std::endl;
- }
- return 0;
-}
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