4.1 Sensors (Input devices) | Sensor | Detects | Typical use | |--------|---------|--------------| | Ultrasonic HC-SR04 | Distance (cm) | Obstacle avoidance | | IR sensor | Line (black/white) | Line following robot | | MPU6050 (IMU) | Acceleration, rotation | Self-balancing robot | | Camera (OV7670) | Images | Object tracking | 4.2 Actuators (Output devices) | Actuator | Control | Example | |----------|---------|---------| | DC motor | Speed (PWM) | Wheel drive | | Servo motor | Position (0°–180°) | Robotic arm joint | | Stepper motor | Precise rotation (steps) | 3D printer, CNC | | Relay/Solenoid | On/Off | Gripper clamp | 4.3 Motor Driver (H-Bridge) Microcontroller pins cannot supply enough current for motors. Use an H-Bridge (e.g., L298N, L293D) to control direction and speed.
void TaskMotorControl(void *pvParameters) while(1) updateMotorSpeed(distance); vTaskDelay(10); // Run every 10 ms
Embedded Systems Introduction To Robotics Pdf May 2026
4.1 Sensors (Input devices) | Sensor | Detects | Typical use | |--------|---------|--------------| | Ultrasonic HC-SR04 | Distance (cm) | Obstacle avoidance | | IR sensor | Line (black/white) | Line following robot | | MPU6050 (IMU) | Acceleration, rotation | Self-balancing robot | | Camera (OV7670) | Images | Object tracking | 4.2 Actuators (Output devices) | Actuator | Control | Example | |----------|---------|---------| | DC motor | Speed (PWM) | Wheel drive | | Servo motor | Position (0°–180°) | Robotic arm joint | | Stepper motor | Precise rotation (steps) | 3D printer, CNC | | Relay/Solenoid | On/Off | Gripper clamp | 4.3 Motor Driver (H-Bridge) Microcontroller pins cannot supply enough current for motors. Use an H-Bridge (e.g., L298N, L293D) to control direction and speed.
void TaskMotorControl(void *pvParameters) while(1) updateMotorSpeed(distance); vTaskDelay(10); // Run every 10 ms Embedded Systems Introduction To Robotics Pdf
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