Adds a python countdown program

bindings/python/countdown-n-lap.py

@@ -0,0 +1,81 @@
+'''
+Have fun using this simple program.
+
+Logic: Varga "vsumpi" Zsombor
+Base-lib: https://github.com/hzeller/rpi-rgb-led-matrix
+Other: 
+    gpiozero: https://github.com/gpiozero
+'''
+
+import time # type: ignore
+import datetime # type: ignore
+from gpiozero import Button # type: ignore
+from signal import pause # type: ignore
+from samplebase import SampleBase # type: ignore
+from rgbmatrix import RGBMatrix, RGBMatrixOptions, graphics # type: ignore
+
+
+# Matrix and Graphics Configuration (moved outside loop for clarity)
+options = RGBMatrixOptions()
+options.rows = 32
+options.cols = 64
+options.chain_length = 1
+options.parallel = 1
+options.hardware_mapping = 'adafruit-hat'
+options.drop_privileges = False
+options.gpio_slowdown = 2
+options.pwm_bits = 1
+matrix = RGBMatrix(options=options)
+font = graphics.Font()
+font.LoadFont("~/rpi-rgb-led-matrix/fonts/6x10.bdf")
+font1 = graphics.Font()
+font1.LoadFont("~/rpi-rgb-led-matrix/fonts/8x13B.bdf")
+font2 = graphics.Font()
+font2.LoadFont("~/rpi-rgb-led-matrix/fonts/6x9.bdf")
+red = graphics.Color(255, 0, 0)
+green = graphics.Color(0, 255, 0)
+blue = graphics.Color(0, 0, 255)
+white = graphics.Color(255, 255, 255)
+button = Button(19) #gpiozero BCM 19
+
+
+# Utility Functions
+def clear_screen():
+    matrix.Clear()
+
+
+def display_clock():
+    clear_screen()
+    graphics.DrawText(matrix, font, 3, 10, red, clockwork) #This is the clock render
+    #This is the countdown
+    if countdown > 5:
+        graphics.DrawText(matrix, font, 15, 26, white, f": {countdown}")
+    if countdown <= 5:
+        graphics.DrawText(matrix, font, 15, 26, red, f": {countdown}")
+    if countdown == 1:
+        clear_screen()
+        graphics.DrawText(matrix, font1, 12, 21, green, "START")
+        time.sleep(1)
+    time.sleep(1)
+
+def on_press():
+    #Buttton press logic
+    print(clockwork)
+    time_buffer.append(clockwork)
+    #Make a file and sabe lap time
+    with open("~/laptime.txt", "a") as f:
+        f.write("\n".join(time_buffer) + "\n")
+        time_buffer.clear()
+    button.when_pressed = None #Used to stop the infinite loop of gpiozero
+
+
+# Main Loop
+countdown_length = 10 #Set the countdown length here
+time_buffer = []
+
+while True:
+    clockwork = datetime.datetime.now().strftime("%H:%M:%S") #This is your clock
+    countdown = abs((int(clockwork[-2:]) % countdown_length) - countdown_length) # This is the logic for the countdown
+    if not button.when_pressed: #Button press listener
+        button.when_pressed = on_press #DO NOT USE as a function() it will break the code, beacuse it's just referring to the function!
+    display_clock()