add a #define for buzer pin

src/my_buttons.cpp

@@ -52,7 +52,7 @@ int b = -1;
             if (currentClick > lastClick + DEBOUNCING_DELAY) {
               Serial.println(" Sort");
               lastClick = currentClick;
-              tone(12, 1000, 50);
+              tone(BUZZ, 1000, 50);
               lastButtonId = b;
             } else {
               b = -1;

src/my_buttons.h

@@ -1,6 +1,6 @@
 
 
-#define KEYS_PIN A0
+#define BUZZ       12    // Buzzer
 
 int getPressedButton();
 void setupButtons();

src/oorobot.ino

@@ -12,7 +12,6 @@
 #include <AccelStepper.h>
 #include <Servo.h>
 #include "charset.h"
-//#include "buttons.h"
 #include "my_buttons.h"
 
 
@@ -47,6 +46,8 @@ SoftwareSerial BTSerie(RxD, TxD);
 #define motorPin7  10    // IN3 on the ULN2003 driver 2
 #define motorPin8  11    // IN4 on the ULN2003 driver 2
 
+
+
 // Menu index
 #define START_MENU 0
 #define SETTINGS_MENU 1
@@ -127,13 +128,13 @@ void setup() {
   setupButtons();
   Serial.println(F("Setup"));
   
-  tone(12, 1047, 100);
+  tone(BUZZ, 1047, 100);
   delay(150);
-  tone(12, 1319, 100);
+  tone(BUZZ, 1319, 100);
   delay(150);
-  tone(12, 1560, 100);
+  tone(BUZZ, 1560, 100);
   delay(150);
-  noTone(12);
+  noTone(BUZZ);
 
   lcd.init();
   lcd.backlight();