Force Feedback example

This example shows how to use the CPP HaplyHardwareAPI to control the Haply hardware in a force feedback mode. A full example can be found in the end of the file, but the main steps are:

Include the necessary headers

#include "HardwareAPI.h"

Find the device and open the connection

std::vector ports =
            Haply::HardwareAPI::Devices::DeviceDetection::DetectInverse3s(); // List all the available devices
Haply::HardwareAPI::IO::SerialStream serial_stream(ports[0].c_str()); // Open the connection to the first device found
Haply::HardwareAPI::Devices::Inverse3 inverse3(&serial_stream; // Create the device object
Haply::HardwareAPI::Devices::Inverse3::DeviceInfoResponse response_to_wake = inverse3.DeviceWakeup(); // Get the device info

Send the force feedback command

// In a loop
while(True) {
    Haply::HardwareAPI::Devices::Inverse3::EndEffectorForceRequest request;
    // x, y, z forces in N
    request.force[0] = 0.0;
    request.force[1] = 0.0;
    request.force[2] = 0.0;

    Haply::HardwareAPI::Devices::Inverse3::EndEffectorStateResponse response = inverse3.EndEffectorForce(request);
    // Print the position and velocity
    printf("Position: %f %f %f\n", response.position[0], response.position[1], response.position[2]);
    printf("Velocity: %f %f %f\n", response.velocity[0], response.velocity[1], response.velocity[2]);
}

Full example

#include <string.h>

#include <chrono>
#include <iostream>
#include <iterator>
#include <string>
#include <thread>

#include "HardwareAPI.h"

int main(int argc, char* argv[])
{
    char* portName;

    if (argc < 2)
    {
        std::vector ports =
            Haply::HardwareAPI::Devices::DeviceDetection::DetectInverse3s();
        std::string portNames[256];
        int nbport = ports.size();
#if defined _DEBUG
        printf("Found %d ports: \n", nbport);
#endif
        if (nbport > 0)
        {
            int index = nbport - 1;
#if defined(_WIN32) || defined(_WIN64)
            portName = _strdup(ports[index].c_str());
#endif
#if defined(__linux__) || defined(__APPLE__)
            portName = strdup(ports[index].c_str());
#endif
        }
        else
        {
#if defined _DEBUG
            std::cout << "No Inverse3 found" << std::endl;
#endif
            return -1;
        }
    }
    else
    {
#if defined(_WIN32) || defined(_WIN64)
        portName = _strdup(argv[1]);  // argv1;
#endif
#if defined(__linux__)
        portName = strdup(argv[1]);  // argv1;
#endif
    }

#if defined _DEBUG
    printf("Using port %s\n", portName);
#endif
    Haply::HardwareAPI::IO::SerialStream serial_stream(portName);
    if (serial_stream.OpenDevice() < 0)
        printf("unable to open serial stream for '%s'", portName);
    Haply::HardwareAPI::Devices::Inverse3 inverse3(&serial_stream);
    Haply::HardwareAPI::Devices::Inverse3::DeviceInfoResponse response_to_wake =
        inverse3.DeviceWakeup();
#if defined _DEBUG
    std::cout << std::endl << "Press ENTER to continue . . .";
    std::cin.get();
#endif
    while (true)
    {
        // This is the fast update loop

        Haply::HardwareAPI::Devices::Inverse3::EndEffectorForceRequest request;
        // x, y, z forces
        request.force[0] = 0.0;
        request.force[1] = 0.0;
        request.force[2] = 0.0;

        Haply::HardwareAPI::Devices::Inverse3::EndEffectorStateResponse
            response = inverse3.EndEffectorForce(request);
        printf("Position: %f %f %f\n", response.position[0],
               response.position[1], response.position[2]);
        printf("Velocity: %f %f %f\n", response.velocity[0],
               response.velocity[1], response.velocity[2]);

        std::this_thread::sleep_for(std::chrono::microseconds(100));
    }
}