add comments

This commit is contained in:
Richie 2023-11-28 13:42:59 +08:00
parent d31f4b0ef9
commit e06898c893
3 changed files with 10 additions and 6 deletions

View File

@ -35,7 +35,7 @@ check_obstacle(void *pvParameters)
// Calculate the distance (in centimeters) // Calculate the distance (in centimeters)
uint32_t pulse_duration = end_time - start_time; uint32_t pulse_duration = end_time - start_time;
float distance float distance
= (pulse_duration * 0.034 / 2); // Speed of sound in cm/us = (pulse_duration * 0.034 / 2); // Speed of sound in air to cm/us
// printf("Distance: %.2f cm\n", distance); // printf("Distance: %.2f cm\n", distance);
@ -50,6 +50,11 @@ check_obstacle(void *pvParameters)
} }
} }
/**
* @brief Initialise the Ultrasonic Sensor
* @details Initialise the Ultrasonic Sensor Pins and set default collision value
*/
void void
ultrasonic_init(car_struct_t *car_struct) ultrasonic_init(car_struct_t *car_struct)
{ {

View File

@ -6,7 +6,6 @@
#include "ultrasonic_sensor.h" #include "ultrasonic_sensor.h"
#include "car_config.h" #include "car_config.h"
int int
main(void) main(void)
{ {