Using C Programming A Robot (iPad)

To make code readable, developers create a . This involves wrapping register commands into reusable functions. void motor_forward(int speed); int read_ultrasonic_sensor(); The Main Control Loop

Robots operate on a . Unlike desktop software that waits for user input, a robot continuously polls sensors and updates actuators in an infinite while(1) loop. 3. Practical Implementation: The Feedback Loop

C is the dominant language in robotics because it provides with high execution speed.

Explaining for real-time responsiveness. Comparing C with C++ or Python in robotic applications.

Lack of automatic memory management means bugs like buffer overflows can cause physical damage to the hardware.

Handling multiple sensors simultaneously often requires Interrupt Service Routines (ISRs) to break the main loop execution when an event occurs.

#include #define THRESHOLD 20 // Distance in cm int main() { // Initialize hardware init_motors(); init_sensors(); while(1) { // SENSE: Read distance from ultrasonic sensor int distance = get_distance_cm(); // THINK: Decision logic if (distance < THRESHOLD) { // ACT: Stop and turn stop_motors(); delay_ms(500); turn_right(90); } else { // ACT: Move forward move_forward(75); // 75% speed } } return 0; } Use code with caution. Copied to clipboard 4. Challenges in C Robotics