battery_level.cpp

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#include "create/create.h"

#include <iostream>

int main(int argc, char** argv) {
  // Select robot. Assume Create 2 unless argument says otherwise
  create::RobotModel model = create::RobotModel::CREATE_2;
  std::string port = "/dev/ttyUSB0";
  int baud = 115200;
  if (argc > 1 && std::string(argv[1]) == "create1") {
    model = create::RobotModel::CREATE_1;
    baud = 57600;
    std::cout << "Running driver for Create 1" << std::endl;
  }
  else {
    std::cout << "Running driver for Create 2" << std::endl;
  }

  // Construct robot object
  create::Create robot(model);

  // Connect to robot
  if (robot.connect(port, baud))
    std::cout << "Connected to robot" << std::endl;
  else {
    std::cout << "Failed to connect to robot on port " << port.c_str() << std::endl;
    return 1;
  }

  // Switch to Full mode
  robot.setMode(create::MODE_FULL);

  // Get battery capacity (max charge)
  const float battery_capacity = robot.getBatteryCapacity();

  float battery_charge = 0.0f;
  while (true) {
    // Get battery charge
    battery_charge = robot.getBatteryCharge();

    // Print battery percentage
    std::cout << "\rBattery level: " << (battery_charge / battery_capacity) * 100.0 << "%";

    usleep(100000);  // 10 Hz
  }

  return 0;
}