summaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/calibration.cpp29
-rw-r--r--src/calibration.hpp11
-rw-r--r--src/gyronardo.cpp120
-rw-r--r--src/sensor/registers.hpp (renamed from src/sensor_registers.hpp)0
-rw-r--r--src/sensor/sensor.cpp (renamed from src/sensor.cpp)137
-rw-r--r--src/sensor/sensor.hpp (renamed from src/sensor.hpp)14
-rw-r--r--src/utils/general.cpp14
-rw-r--r--src/utils/general.hpp23
-rw-r--r--src/utils/memory.hpp23
-rw-r--r--src/utils/memory.tpp48
-rw-r--r--src/utils/serial.cpp57
-rw-r--r--src/utils/serial.hpp27
-rw-r--r--src/utils/smart_string.cpp26
-rw-r--r--src/utils/smart_string.hpp14
-rw-r--r--src/utils/time.cpp (renamed from src/time_utils.cpp)2
-rw-r--r--src/utils/time.hpp (renamed from src/time_utils.hpp)4
16 files changed, 408 insertions, 141 deletions
diff --git a/src/calibration.cpp b/src/calibration.cpp
index f76d8f8..a772ae9 100644
--- a/src/calibration.cpp
+++ b/src/calibration.cpp
@@ -1,9 +1,11 @@
#include "calibration.hpp"
-#include "time_utils.hpp"
-SensorCalibrator::SensorCalibrator(Sensor *sensor)
+#include "utils/general.hpp"
+#include "utils/time.hpp"
+
+SensorCalibrator::SensorCalibrator(unique_ptr<Sensor> &sensor, SerialStream sout)
+ : _sensor(sensor), _sout(sout)
{
- _sensor = sensor;
_resetValues();
}
@@ -15,7 +17,9 @@ bool SensorCalibrator::calibrate(unsigned int throttle_time)
while (!done)
{
if (time_now().diff(start_time).millisecs() >= CALIBRATION_TIMEOUT)
+ {
return false;
+ }
delay(throttle_time);
@@ -28,19 +32,12 @@ bool SensorCalibrator::calibrate(unsigned int throttle_time)
_adjustValues();
- Serial.print("Accel X: ");
- Serial.print(_accel_x);
- Serial.print(" Accel Y: ");
- Serial.print(_accel_y);
- Serial.print(" Accel Z: ");
- Serial.print(_accel_z);
-
- Serial.print(" Gyro X: ");
- Serial.print(_gyro_x);
- Serial.print(" Gyro Y: ");
- Serial.print(_gyro_y);
- Serial.print(" Gyro Z: ");
- Serial.println(_gyro_z);
+ _sout << "Accel X: " << _accel_x << " "
+ << "Accel Y: " << _accel_y << " "
+ << "Accel Z: " << _accel_z << " "
+ << "Gyro X: " << _gyro_x << " "
+ << "Gyro Y: " << _gyro_y << " "
+ << "Gyro Z: " << _gyro_z << endl;
if (_isValuesInRange())
{
diff --git a/src/calibration.hpp b/src/calibration.hpp
index 79b3758..e66b6fc 100644
--- a/src/calibration.hpp
+++ b/src/calibration.hpp
@@ -1,7 +1,9 @@
#ifndef CALIBRATION_HPP
#define CALIBRATION_HPP
-#include "sensor.hpp"
+#include "sensor/sensor.hpp"
+#include "utils/memory.hpp"
+#include "utils/serial.hpp"
// Calibration precision
#define ACCEL_CAL_X_MAX 0.006
@@ -37,8 +39,9 @@ public:
* Sensor calibrator.
*
* @param sensor A sensor to calibrate
+ * @param sout A Serial output stream
*/
- SensorCalibrator(Sensor *sensor);
+ SensorCalibrator(unique_ptr<Sensor> &sensor, SerialStream sout);
/**
* Calibrates the sensor.
@@ -57,7 +60,9 @@ private:
void _adjustCalibration();
- Sensor *_sensor;
+ unique_ptr<Sensor> &_sensor;
+
+ SerialStream _sout;
float _accel_x;
float _accel_y;
diff --git a/src/gyronardo.cpp b/src/gyronardo.cpp
index f1e968e..53a1912 100644
--- a/src/gyronardo.cpp
+++ b/src/gyronardo.cpp
@@ -1,94 +1,87 @@
#include "Arduino.h"
+
#include "Wire.h"
#include "calibration.hpp"
-#include "sensor.hpp"
+#include "sensor/sensor.hpp"
+#include "utils/memory.hpp"
+
+#include "utils/serial.hpp"
#define LINE_CLEAR_LENGTH 30
+#define SENSOR_ADDRESS 0x68
#define SENSOR_THROTTLE_TIME 50 // milliseconds
-Sensor sensor(0x68, &Wire, SENSOR_THROTTLE_TIME);
-
-char line_clear[LINE_CLEAR_LENGTH + 1];
+unique_ptr<SerialStream> sout_ptr = nullptr;
-/**
- * Stops code execution.
- */
-void stop()
-{
- while (true) {}
-}
+unique_ptr<Sensor> sensor = nullptr;
void setup()
{
- Serial.begin(9600);
+ sout_ptr = make_unique<SerialStream>(Serial, 9600);
- // Wait for Serial because the Arduino Leonardo is weird
- while (!Serial) {}
+ auto sout = *sout_ptr;
- while (!sensor.begin())
+ sensor = make_unique<Sensor>(SENSOR_ADDRESS, &Wire, sout, SENSOR_THROTTLE_TIME);
+
+ while (!sensor->begin())
{
- Serial.println("Error: Could not connect to the sensor. Retrying after 2000 "
- "milliseconds...");
+ sout << "Error: Could not connect to the sensor. Retrying after 2000 "
+ "milliseconds..."
+ << endl;
+
delay(2000);
}
- if (!sensor.setAccelSensitivity(2)) // 8g
+ sout << "Skit!" << endl;
+
+ if (!sensor->setAccelSensitivity(2)) // 8g
{
- Serial.print(
- "Error: Failed to set the sensor's accelerometer sensitivity. Status: ");
- Serial.println(static_cast<int>(sensor.getStatus()));
+ sout << "Error: Failed to set the sensor's accelerometer sensitivity. Status: "
+ << static_cast<int>(sensor->getStatus()) << endl;
+
stop();
}
- if (!sensor.setGyroSensitivity(1)) // 500 degrees/s
+ if (!sensor->setGyroSensitivity(1)) // 500 degrees/s
{
- Serial.print("Error: Failed to set the sensor's gyro sensitivity. Status: ");
- Serial.println(static_cast<int>(sensor.getStatus()));
+ sout << "Error: Failed to set the sensor's gyro sensitivity. Status: "
+ << static_cast<int>(sensor->getStatus()) << endl;
+
stop();
}
- Serial.println("Calibrating sensor...");
- SensorCalibrator sensor_calibrator(&sensor);
+ sout << "Calibrating sensor..." << endl;
+
+ SensorCalibrator sensor_calibrator(sensor, sout);
if (!sensor_calibrator.calibrate(SENSOR_THROTTLE_TIME))
{
- Serial.print("Error: Sensor calibration timed out after ");
- Serial.print(CALIBRATION_TIMEOUT);
- Serial.println(" milliseconds");
+ sout << "Error: Sensor calibration timed out after " << CALIBRATION_TIMEOUT
+ << " milliseconds" << endl;
stop();
}
- Serial.println("Finished calibrating sensor");
-
- Serial.println("Calibration values:");
-
- Serial.print("Accelerometer X: ");
- Serial.println(sensor.accel_cal_x);
-
- Serial.print("Accelerometer Y: ");
- Serial.println(sensor.accel_cal_y);
-
- Serial.print("Accelerometer Z: ");
- Serial.println(sensor.accel_cal_z);
- Serial.print("Gyro X: ");
- Serial.println(sensor.gyro_cal_x);
+ sout << "Finished calibrating sensor\n";
- Serial.print("Gyro Y: ");
- Serial.println(sensor.gyro_cal_y);
+ sout << "Calibration values:\n"
+ << "Accelerometer X: " << sensor->accel_cal_x << "\n"
+ << "Accelerometer Y: " << sensor->accel_cal_y << "\n"
+ << "Accelerometer Z: " << sensor->accel_cal_z << "\n"
+ << "Gyro X: " << sensor->gyro_cal_x << "\n"
+ << "Gyro Y: " << sensor->gyro_cal_y << "\n"
+ << "Gyro Z: " << sensor->gyro_cal_z << "\n";
- Serial.print("Gyro Z: ");
- Serial.println(sensor.gyro_cal_z);
+ sout << "Starting..." << endl;
- Serial.println("\nStarting...");
-
- size_t prev_len = strlen(line_clear);
- memset(line_clear + prev_len, ' ', LINE_CLEAR_LENGTH - prev_len);
+ sout << "Pitch: " << sensor->getPitch() << " "
+ << "Roll: " << sensor->getRoll() << endl;
}
void loop()
{
+ /*
delay(SENSOR_THROTTLE_TIME);
if (!sensor.read())
@@ -97,24 +90,25 @@ void loop()
if (status == SensorStatus::THROTTLED)
{
- Serial.println("Warning: The sensor was read too frequently and throttled");
+ printSerial("Warning: The sensor was read too frequently and throttled");
+ endl();
+
return;
}
- Serial.print("Error: Failed to read sensor. Status: ");
- Serial.println(static_cast<int>(status));
+ printSerial("Error: Failed to read sensor. Status: %d", static_cast<int>(status));
+ endl();
+
stop();
}
- float pitch = sensor.getPitch();
- float roll = sensor.getRoll();
+ char *pitch = floatToStr(sensor.getPitch(), FLOAT_WIDTH, FLOAT_PRECISION);
+ char *roll = floatToStr(sensor.getRoll(), FLOAT_WIDTH, FLOAT_PRECISION);
- Serial.print(line_clear);
- Serial.print("\r");
- Serial.print("Pitch: ");
- Serial.print(pitch, 3);
- Serial.print(" Roll: ");
- Serial.print(roll, 3);
- Serial.print("\r");
+ printSerial("\rPitch: %s Roll: %s", pitch, roll);
Serial.flush();
+
+ free(pitch);
+ free(roll);
+ */
}
diff --git a/src/sensor_registers.hpp b/src/sensor/registers.hpp
index c1b19b4..c1b19b4 100644
--- a/src/sensor_registers.hpp
+++ b/src/sensor/registers.hpp
diff --git a/src/sensor.cpp b/src/sensor/sensor.cpp
index 9d4157e..e11a74b 100644
--- a/src/sensor.cpp
+++ b/src/sensor/sensor.cpp
@@ -1,9 +1,11 @@
#include "sensor.hpp"
-#include "math.h"
-#include "sensor_registers.hpp"
-#include "time_utils.hpp"
+#include "../utils/serial.hpp"
+#include "../utils/time.hpp"
+#include "registers.hpp"
-Sensor::Sensor(uint8_t address, TwoWire *wire, unsigned int throttle_time) : _last_time(0)
+Sensor::Sensor(uint8_t address, TwoWire *wire, SerialStream sout,
+ unsigned int throttle_time)
+ : _last_time(0), _sout(sout)
{
_address = address;
_wire = wire;
@@ -100,14 +102,24 @@ bool Sensor::read()
}
// Accelerometer
- _accel_raw_x = _readTwoBytes(); // ACCEL_XOUT_H ACCEL_XOUT_L
- _accel_raw_y = _readTwoBytes(); // ACCEL_YOUT_H ACCEL_YOUT_L
- _accel_raw_z = _readTwoBytes(); // ACCEL_ZOUT_H ACCEL_ZOUT_L
+ _accel_raw_x = _readHighLow();
+ _accel_raw_y = _readHighLow();
+ _accel_raw_z = _readHighLow();
+
+ _sout << "\nAccel raw x: " << _accel_raw_x << "\n"
+ << "Accel raw y: " << _accel_raw_y << "\n"
+ << "Accel raw z: " << _accel_raw_z << "\n"
+ << endl;
// Gyroscope
- _gyro_raw_x = _readTwoBytes(); // GYRO_XOUT_H GYRO_XOUT_L
- _gyro_raw_y = _readTwoBytes(); // GYRO_YOUT_H GYRO_YOUT_L
- _gyro_raw_z = _readTwoBytes(); // GYRO_ZOUT_H GYRO_ZOUT_L
+ _gyro_raw_x = _readHighLow();
+ _gyro_raw_y = _readHighLow();
+ _gyro_raw_z = _readHighLow();
+
+ _sout << "\nGyro raw x: " << _gyro_raw_x << "\n"
+ << "Gyro raw y: " << _gyro_raw_y << "\n"
+ << "Gyro raw z: " << _gyro_raw_z << "\n"
+ << endl;
// Duration interval
now.update();
@@ -119,67 +131,93 @@ bool Sensor::read()
_accel_raw_y *= _accel_to_g_force;
_accel_raw_z *= _accel_to_g_force;
+ _sout << "\nAccel raw x g:s: " << _accel_raw_x << "\n"
+ << "Accel raw y g:s: " << _accel_raw_y << "\n"
+ << "Accel raw z g:s: " << _accel_raw_z << "\n"
+ << endl;
+
// Error correct raw acceleration
_accel_raw_x += accel_cal_x;
_accel_raw_y += accel_cal_y;
_accel_raw_z += accel_cal_z;
+ _sout << "\nAccel raw x correct: " << _accel_raw_x << "\n"
+ << "Accel raw y correct: " << _accel_raw_y << "\n"
+ << "Accel raw z correct: " << _accel_raw_z << "\n"
+ << endl;
+
// Prepare for Pitch Roll Yaw
- float accel_x_pow_two = pow(_accel_raw_x, 2);
float accel_y_pow_two = pow(_accel_raw_y, 2);
float accel_z_pow_two = pow(_accel_raw_z, 2);
+ _accel_x = atan2(_accel_raw_y, _accel_raw_z) * 180 / PI;
+
+ _accel_y = atan2(-_accel_raw_x, sqrt(accel_y_pow_two + accel_z_pow_two)) * 180 / PI;
+
+ /*
_accel_x =
atan(_accel_raw_y / sqrt(accel_x_pow_two + accel_z_pow_two)) * RAD_TO_DEGREES;
_accel_y = atan(-1.0 * _accel_raw_x / sqrt(accel_y_pow_two + accel_z_pow_two)) *
RAD_TO_DEGREES;
+ */
// Convert raw Gyro to degrees/s
_gyro_raw_x *= _ang_rate_to_dps;
_gyro_raw_y *= _ang_rate_to_dps;
_gyro_raw_z *= _ang_rate_to_dps;
+ _sout << "\nGyro raw x dps: " << _gyro_raw_x << "\n"
+ << "Gyro raw y dps: " << _gyro_raw_y << "\n"
+ << "Gyro raw z dps: " << _gyro_raw_z << "\n"
+ << endl;
+
// Error correct raw gyro measurements.
_gyro_raw_x += gyro_cal_x;
_gyro_raw_y += gyro_cal_y;
_gyro_raw_z += gyro_cal_z;
+ _sout << "\nGyro raw x correct: " << _gyro_raw_x << "\n"
+ << "Gyro raw y correct: " << _gyro_raw_y << "\n"
+ << "Gyro raw z correct: " << _gyro_raw_z << "\n"
+ << endl;
+
_gyro_x += _gyro_raw_x * duration;
_gyro_y += _gyro_raw_y * duration;
_gyro_z += _gyro_raw_z * duration;
- _yaw = _gyro_z;
+ _sout << "\nGyro raw x w/o time: " << _gyro_raw_x << "\n"
+ << "Gyro raw y w/o time: " << _gyro_raw_y << "\n"
+ << "Gyro raw z w/o time: " << _gyro_raw_z << "\n"
+ << endl;
+
_pitch = 0.96 * _gyro_y + 0.04 * _accel_y;
_roll = 0.96 * _gyro_x + 0.04 * _accel_x;
+ _yaw = _gyro_z;
return true;
}
bool Sensor::setAccelSensitivity(uint8_t sensitivity)
{
- _accel_sensitivity = sensitivity;
+ if (sensitivity > 3)
+ sensitivity = 3;
- if (_accel_sensitivity > 3)
- _accel_sensitivity = 3;
+ _accel_sensitivity = sensitivity;
- uint8_t val = getRegister(SensorRegisters::ACCEL_CONFIG);
+ uint8_t accel_config = getRegister(SensorRegisters::ACCEL_CONFIG);
if (_status != SensorStatus::OK)
- {
return false;
- }
// No need to write same value
- if (((val >> 3) & 3) != _accel_sensitivity)
+ if (((accel_config >> 3) & 3) != _accel_sensitivity)
{
- val &= 0xE7;
- val |= (_accel_sensitivity << 3);
+ accel_config &= 0xE7;
+ accel_config |= (_accel_sensitivity << 3);
- if (!setRegister(SensorRegisters::ACCEL_CONFIG, val))
- {
+ if (!setRegister(SensorRegisters::ACCEL_CONFIG, accel_config))
return false;
- }
}
// Calculate conversion factor.
@@ -190,12 +228,12 @@ bool Sensor::setAccelSensitivity(uint8_t sensitivity)
bool Sensor::setGyroSensitivity(uint8_t sensitivity)
{
- _gyro_sensitivity = sensitivity;
+ if (sensitivity > 3)
+ sensitivity = 3;
- if (_gyro_sensitivity > 3)
- _gyro_sensitivity = 3;
+ _gyro_sensitivity = sensitivity;
- uint8_t val = getRegister(SensorRegisters::GYRO_CONFIG);
+ uint8_t gyro_config = getRegister(SensorRegisters::GYRO_CONFIG);
if (_status != SensorStatus::OK)
{
@@ -203,12 +241,12 @@ bool Sensor::setGyroSensitivity(uint8_t sensitivity)
}
// No need to write same value
- if (((val >> 3) & 3) != _gyro_sensitivity)
+ if (((gyro_config >> 3) & 3) != _gyro_sensitivity)
{
- val &= 0xE7;
- val |= (_gyro_sensitivity << 3);
+ gyro_config &= 0xE7;
+ gyro_config |= (_gyro_sensitivity << 3);
- if (!setRegister(SensorRegisters::GYRO_CONFIG, val))
+ if (!setRegister(SensorRegisters::GYRO_CONFIG, gyro_config))
{
return false;
}
@@ -222,52 +260,52 @@ bool Sensor::setGyroSensitivity(uint8_t sensitivity)
float Sensor::getAccelX()
{
return _accel_raw_x;
-};
+}
float Sensor::getAccelY()
{
return _accel_raw_y;
-};
+}
float Sensor::getAccelZ()
{
return _accel_raw_z;
-};
+}
float Sensor::getAngleX()
{
return _accel_x;
-};
+}
float Sensor::getAngleY()
{
return _accel_y;
-};
+}
float Sensor::getGyroX()
{
return _gyro_raw_x;
-};
+}
float Sensor::getGyroY()
{
return _gyro_raw_y;
-};
+}
float Sensor::getGyroZ()
{
return _gyro_raw_z;
-};
+}
float Sensor::getPitch()
{
return _pitch;
-};
+}
float Sensor::getRoll()
{
return _roll;
-};
+}
bool Sensor::setRegister(uint8_t reg, uint8_t value)
{
@@ -302,9 +340,7 @@ uint8_t Sensor::getRegister(uint8_t reg)
return 0;
}
- uint8_t val = _wire->read();
-
- return val;
+ return _wire->read();
}
SensorStatus Sensor::getStatus()
@@ -313,13 +349,12 @@ SensorStatus Sensor::getStatus()
_status = SensorStatus::OK;
return status;
-};
+}
-int16_t Sensor::_readTwoBytes()
+int16_t Sensor::_readHighLow()
{
- int16_t response = _wire->read();
- response <<= 8;
- response |= _wire->read();
+ int16_t high = _wire->read();
+ int16_t low = _wire->read();
- return response;
+ return high << 8 | low;
}
diff --git a/src/sensor.hpp b/src/sensor/sensor.hpp
index 72ff396..c982fac 100644
--- a/src/sensor.hpp
+++ b/src/sensor/sensor.hpp
@@ -1,13 +1,14 @@
#ifndef SENSOR_HPP
#define SENSOR_HPP
-#include "Arduino.h"
+#include "../utils/serial.hpp"
+#include "../utils/time.hpp"
+
#include "Wire.h"
-#include "time_utils.hpp"
+#include <Arduino.h>
#define SENSOR_WAKEUP 0x00
-#define RAD_TO_DEGREES (180.0 / PI)
#define RAW_TO_DPS_FACTOR (1.0 / 131.0)
#define RAW_TO_G_FACTOR (1.0 / 16384.0)
@@ -31,9 +32,10 @@ public:
*
* @param address The address of the sensor
* @param wire A Wire instance
+ * @param sout A serial output stream
* @param throttle_time A minumum time between sensor reads for the sensor to throttle
*/
- Sensor(uint8_t address, TwoWire *wire, unsigned int throttle_time);
+ Sensor(uint8_t address, TwoWire *wire, SerialStream sout, unsigned int throttle_time);
/**
* Initializes communication with the sensor.
@@ -181,9 +183,11 @@ private:
float _pitch, _roll, _yaw;
- int16_t _readTwoBytes();
+ int16_t _readHighLow();
TwoWire *_wire;
+
+ SerialStream _sout;
};
#endif
diff --git a/src/utils/general.cpp b/src/utils/general.cpp
new file mode 100644
index 0000000..bbcd4dd
--- /dev/null
+++ b/src/utils/general.cpp
@@ -0,0 +1,14 @@
+#include "general.hpp"
+
+void stop()
+{
+ while (true) {}
+}
+
+unique_ptr<SmartString> floatToStr(float num, unsigned int width, unsigned int precision)
+{
+ auto str = make_unique<SmartString>(width + precision);
+ dtostrf(num, width, precision, str->c_str);
+
+ return str;
+}
diff --git a/src/utils/general.hpp b/src/utils/general.hpp
new file mode 100644
index 0000000..9ad0655
--- /dev/null
+++ b/src/utils/general.hpp
@@ -0,0 +1,23 @@
+#pragma once
+
+#include "memory.hpp"
+#include "smart_string.hpp"
+
+/**
+ * Stops code execution.
+ */
+void stop();
+
+/**
+ * Converts a floating point number to a string.
+ *
+ * @param num A floating point number
+ * @param width The desired float width
+ * @param precision The desired float precision
+ * @returns The float as a string.
+ */
+unique_ptr<SmartString> floatToStr(
+ float num,
+ unsigned int width = 3,
+ unsigned int precision = 2
+);
diff --git a/src/utils/memory.hpp b/src/utils/memory.hpp
new file mode 100644
index 0000000..81e3757
--- /dev/null
+++ b/src/utils/memory.hpp
@@ -0,0 +1,23 @@
+#pragma once
+
+template <typename memType>
+memType *malloc_s(unsigned int size);
+
+template <class Target>
+class unique_ptr
+{
+public:
+ unique_ptr(Target *target);
+ ~unique_ptr();
+
+ Target operator *() const;
+ Target *operator ->() const;
+
+private:
+ Target *_target;
+};
+
+template<class Target, typename...Args>
+unique_ptr<Target> make_unique(Args&... args);
+
+#include "memory.tpp"
diff --git a/src/utils/memory.tpp b/src/utils/memory.tpp
new file mode 100644
index 0000000..276b0b4
--- /dev/null
+++ b/src/utils/memory.tpp
@@ -0,0 +1,48 @@
+#include "memory.hpp"
+
+#include "Arduino.h"
+#include "general.hpp"
+
+template <typename memType>
+memType *malloc_s(unsigned int size)
+{
+ auto *mem = malloc(size);
+
+ if (mem == nullptr)
+ {
+ Serial.println("Error: Memory allocation failed");
+ while (true) {}
+ }
+
+ return static_cast<memType *>(mem);
+}
+
+template <class Target>
+unique_ptr<Target>::unique_ptr(Target *target)
+{
+ this->_target = target;
+}
+
+template <class Target>
+unique_ptr<Target>::~unique_ptr()
+{
+ delete this->_target;
+}
+
+template <class Target>
+Target unique_ptr<Target>::operator*() const
+{
+ return *(this->_target);
+}
+
+template <class Target>
+Target *unique_ptr<Target>::operator->() const
+{
+ return this->_target;
+}
+
+template <class Target, typename... Args>
+unique_ptr<Target> make_unique(Args... args)
+{
+ return unique_ptr<Target>(new Target(args...));
+}
diff --git a/src/utils/serial.cpp b/src/utils/serial.cpp
new file mode 100644
index 0000000..11be550
--- /dev/null
+++ b/src/utils/serial.cpp
@@ -0,0 +1,57 @@
+#include "serial.hpp"
+
+#include "general.hpp"
+
+SerialStream::SerialStream(Serial_ serial, unsigned long baud_rate)
+{
+ this->_serial = serial;
+
+ this->_serial.begin(baud_rate);
+
+ while (!this->_serial) {}
+}
+
+SerialStream::~SerialStream()
+{
+ Serial.end();
+}
+
+SerialStream &SerialStream::operator<<(const char *str)
+{
+ this->write(str);
+ return *this;
+}
+
+SerialStream &SerialStream::operator<<(const SmartString &str)
+{
+ this->write(str.c_str);
+ return *this;
+}
+
+SerialStream &SerialStream::operator<<(const float num)
+{
+ this->write(floatToStr(num)->c_str);
+ return *this;
+}
+
+SerialStream &SerialStream::operator<<(void (*manipulator)(SerialStream *))
+{
+ manipulator(this);
+ return *this;
+}
+
+void SerialStream::write(const char *str)
+{
+ this->_serial.write(str);
+}
+
+void SerialStream::flush()
+{
+ this->_serial.flush();
+}
+
+void endl(SerialStream *serial_stream)
+{
+ serial_stream->write("\n");
+ serial_stream->flush();
+}
diff --git a/src/utils/serial.hpp b/src/utils/serial.hpp
new file mode 100644
index 0000000..f97e1d8
--- /dev/null
+++ b/src/utils/serial.hpp
@@ -0,0 +1,27 @@
+#pragma once
+
+#include "smart_string.hpp"
+
+#include <USBAPI.h>
+
+class SerialStream
+{
+public:
+ SerialStream(Serial_ serial, unsigned long baud_rate);
+ ~SerialStream();
+
+ SerialStream &operator<<(const char *str);
+ SerialStream &operator<<(const SmartString &str);
+ SerialStream &operator<<(const float num);
+
+ SerialStream &operator<<(void (*manipulator)(SerialStream *));
+
+ void write(const char *str);
+
+ void flush();
+
+private:
+ Serial_ _serial;
+};
+
+void endl(SerialStream *serial_stream);
diff --git a/src/utils/smart_string.cpp b/src/utils/smart_string.cpp
new file mode 100644
index 0000000..5258ffe
--- /dev/null
+++ b/src/utils/smart_string.cpp
@@ -0,0 +1,26 @@
+#include "smart_string.hpp"
+
+#include "memory.hpp"
+
+#include <stdlib.h>
+
+SmartString::SmartString(char *c_string)
+{
+ this->c_str = c_string;
+}
+
+SmartString::SmartString(unsigned int size)
+{
+ this->c_str = malloc_s<char>(size + 1);
+}
+
+SmartString::~SmartString()
+{
+ if (this->c_str != nullptr)
+ free(this->c_str);
+}
+
+SmartString::operator char *() const
+{
+ return this->c_str;
+}
diff --git a/src/utils/smart_string.hpp b/src/utils/smart_string.hpp
new file mode 100644
index 0000000..fcaff98
--- /dev/null
+++ b/src/utils/smart_string.hpp
@@ -0,0 +1,14 @@
+#pragma once
+
+class SmartString
+{
+public:
+ SmartString(char *c_str);
+ SmartString(unsigned int size);
+
+ ~SmartString();
+
+ operator char *() const;
+
+ char *c_str = nullptr;
+};
diff --git a/src/time_utils.cpp b/src/utils/time.cpp
index 84c7d96..adc33db 100644
--- a/src/time_utils.cpp
+++ b/src/utils/time.cpp
@@ -1,4 +1,4 @@
-#include "time_utils.hpp"
+#include "time.hpp"
#include "Arduino.h"
Time::Time(unsigned long time_micros)
diff --git a/src/time_utils.hpp b/src/utils/time.hpp
index f8f2eb3..e0385ef 100644
--- a/src/time_utils.hpp
+++ b/src/utils/time.hpp
@@ -1,5 +1,5 @@
-#ifndef TIME_UTILS_HPP
-#define TIME_UTILS_HPP
+#ifndef TIME_HPP
+#define TIME_HPP
/**
* A representation of time.