Add vibration function

node/code/modules/io_handler/include/init_buttons.h

@@ -8,10 +8,17 @@
 extern "C" {
 #endif
 
+#include <stdio.h>
 #include "thread.h"
+#include "board.h"
+#include "periph/gpio.h"
+#include "events.h"
+
+
 //TODO Workaround
 extern kernel_pid_t dispatcher_pid;
 
+//Buttons initialization functions prototypes:
 int init_buttons(void);
 
 void button_up_callback (void *arg);
@@ -20,6 +27,9 @@ void button_down_callback (void *arg);
 void button_right_callback (void *arg);
 void button_ok_callback (void *arg);
 
+//Vibration functions prototypes:
+void vibrate(uint16_t msec);
+
 #ifdef __cplusplus
 }
 #endif

node/code/modules/io_handler/init_buttons.c

@@ -18,28 +18,25 @@
 
 #include "init_buttons.h"
 
-#include <stdio.h>
-
-#include "board.h"
-#include "periph/gpio.h"
-#include "events.h"
-
 #define ENABLE_DEBUG  1
 #include "debug.h"
 
+//Define the physical GPIO Pins used for buttons:
 gpio_t button_ok = GPIO_PIN(0, 5); //PIN A1
 gpio_t button_right = GPIO_PIN(0, 30); //PIN sA2
 gpio_t button_up = GPIO_PIN(0, 28); //PIN A3
 gpio_t button_down = GPIO_PIN(0, 2); //PIN A4
 gpio_t button_left = GPIO_PIN(0, 3); //PIN A5
 
+//Define the vibration module GPIO: 
 gpio_t vibr_gpio = GPIO_PIN(1, 9);
-gpio_mode_t vibr_gpio_mode = GPIO_OUT;
+gpio_mode_t vibr_gpio_mode = GPIO_OUT; //Define the vibr. GPIO as Output GPIO
 
 int init_buttons(void)
 {
     puts("Buttons initialization...");
 
+    //Initialize button interrupts and define callback funcs:
     gpio_init_int(button_up, GPIO_IN, GPIO_BOTH, button_up_callback, NULL);
     gpio_init_int(button_left, GPIO_IN, GPIO_BOTH, button_left_callback, NULL);
     gpio_init_int(button_down, GPIO_IN, GPIO_BOTH, button_down_callback, NULL);
@@ -48,11 +45,20 @@ int init_buttons(void)
 
     puts("Vibration Module initialization...");
 
+    //Initialize vibration module
     gpio_init(vibr_gpio, vibr_gpio_mode);
     gpio_clear(vibr_gpio);
     return 0;
 }
 
+//Vibrate for msec milliseconds:
+void vibrate(uint16_t msec) {
+
+    gpio_set(vibr_gpio);
+    ztimer_sleep(ZTIMER_MSEC, msec);
+    gpio_clear(vibr_gpio);
+}
+
 void button_up_callback (void *arg)
 {
     (void) arg; /* the argument is not used */
@@ -117,5 +123,3 @@ void button_ok_callback (void *arg)
         trigger_event(BUTTON_OK_RELEASED);
     }
 }
-
-

node/code/modules/io_handler/io_handler.c

@@ -22,6 +22,9 @@
 #include "init_buttons.h"
 #include "io_handler.h"
 
+//Define the vibration time (milliseconds) here:
+#define VIBRATE_FOR_MSEC 500
+
 void io_init(void){
     init_buttons();
 }
@@ -31,7 +34,7 @@ handler_result_t ioHandler_handleEvent(EVENT_T event){
     switch(event){
         case VIBRATE:
             DEBUG("[IoHandler:handleEvent]: vibrate\n");
-            // vibrate();
+            vibrate(VIBRATE_FOR_MSEC);
         break;
         default:
         break;