demo: renamed demo folder to sample, updated readme

sample/hunter_demo/hunter_robot_demo.cpp

@@ -0,0 +1,101 @@
+/*
+ * hunter_robot_demo.cpp
+ *
+ * Created on: Jul 08, 2021 11:12
+ * Description:
+ *
+ * Copyright (c) 2021 Weston Robot Pte. Ltd.
+ */
+
+#include <unistd.h>
+
+#include <memory>
+#include <iostream>
+
+#include "ugv_sdk/mobile_robot/hunter_robot.hpp"
+#include "ugv_sdk/utilities/protocol_detector.hpp"
+
+using namespace westonrobot;
+
+int main(int argc, char **argv) {
+  std::string device_name;
+
+  if (argc == 2) {
+    device_name = {argv[1]};
+    std::cout << "Selected interface " << device_name << std::endl;
+  } else {
+    std::cout << "Usage: app_hunter_demo <interface>" << std::endl
+              << "Example 1: ./app_hunter_demo can0" << std::endl;
+    return -1;
+  }
+
+  std::unique_ptr<HunterRobot> hunter;
+
+  ProtocolDetector detector;
+  detector.Connect(device_name);
+  auto proto = detector.DetectProtocolVersion(5);
+
+  if (proto == ProtocolVersion::AGX_V1) {
+    hunter =
+        std::unique_ptr<HunterRobot>(new HunterRobot(ProtocolVersion::AGX_V1));
+  } else if (proto == ProtocolVersion::AGX_V2) {
+    hunter =
+        std::unique_ptr<HunterRobot>(new HunterRobot(ProtocolVersion::AGX_V2));
+  } else {
+    std::cout << "Detected protocol: UNKONWN" << std::endl;
+    return -1;
+  }
+
+  if (hunter == nullptr)
+    std::cout << "Failed to create robot object" << std::endl;
+
+  hunter->Connect(device_name);
+
+  if (hunter->GetParserProtocolVersion() == ProtocolVersion::AGX_V2) {
+    hunter->EnableCommandedMode();
+    std::cout << "Protocol version 2" << std::endl;
+  } else {
+    std::cout << "Protocol version 1" << std::endl;
+  }
+
+  int count = 0;
+  while (true) {
+    // motion control
+    std::cout << "Motor: 1.0, 0" << std::endl;
+    // hunter->SetMotionCommand(1.0, 0.0);
+
+    // get robot state
+    auto state = hunter->GetRobotState();
+    std::cout << "-------------------------------" << std::endl;
+    std::cout << "count: " << count << std::endl;
+    std::cout << "control mode: "
+              << static_cast<int>(state.system_state.control_mode)
+              << " , vehicle state: "
+              << static_cast<int>(state.system_state.vehicle_state)
+              << " , error code: " << std::hex << state.system_state.error_code
+              << ", battery voltage: " << state.system_state.battery_voltage
+              << std::endl;
+    std::cout << "velocity (linear, angular): "
+              << state.motion_state.linear_velocity << ", "
+              << state.motion_state.steering_angle << std::endl;
+
+    auto actuator = hunter->GetActuatorState();
+    if (hunter->GetParserProtocolVersion() == ProtocolVersion::AGX_V1) {
+      for (int i = 0; i < 3; ++i) {
+        printf("motor %d: current %f, rpm %d, driver temp %f, motor temp %f\n",
+               actuator.actuator_state[i].motor_id,
+               actuator.actuator_state[i].current,
+               actuator.actuator_state[i].rpm,
+               actuator.actuator_state[i].driver_temp,
+               actuator.actuator_state[i].motor_temp);
+      }
+    } else {
+    }
+    std::cout << "-------------------------------" << std::endl;
+
+    usleep(20000);
+    ++count;
+  }
+
+  return 0;
+}