Add button handler

esp32-wifi/button_handler.py

@@ -0,0 +1,45 @@
+import _thread
+from typing import Callable
+from machine import Pin
+import time
+
+class ButtonHandler:
+    def __init__(self, pin : int, action : Callable[[], None]):
+        self.button = Pin(pin, Pin.IN, Pin.PULL_UP)
+        self.action = action
+        self._pressed = False
+        _thread.start_new_thread(self._listen, ())
+
+    def _listen(self):
+        while True:
+            if not self.button.value():
+                if not self._pressed:
+                    self._pressed = True
+                    self.action()
+            else:
+                self._pressed = False
+            time.sleep(0.1)
+
+
+if __name__ == "__main__":
+    def on_press():
+        print("Button action triggered")
+
+    btn = ButtonHandler(14, on_press)
+
+    while True:
+        time.sleep(1)
+
+
+"""# Track button state
+button_pressed = False
+
+while True:
+    if not button.value():  # Button pressed (active low)
+        if not button_pressed:
+            button_pressed = True
+            print("Button pressed! Action triggered.")  # Replace with your action
+    else:
+        button_pressed = False  # Reset when button released
+
+    time.sleep(0.01)  # Small debounce delay"""