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displayCounter.py

+from machine import Timer, Pin
+import math
+import random
+import utime
+from pimoroni import Button
+from picographics import PicoGraphics, DISPLAY_PICO_DISPLAY, PEN_P4
+
+timer_count = 0 # global variable
+
+# We're only using a few colours so we can use a 4 bit/16 colour palette and save RAM!
+display = PicoGraphics(display=DISPLAY_PICO_DISPLAY, pen_type=PEN_P4, rotate=0)
+
+display.set_backlight(0.5)
+display.set_font("bitmap8")
+
+button_a = Button(12)
+button_b = Button(13)
+button_x = Button(14)
+button_y = Button(15)
+
+lastButton = button_y
+
+
+WHITE = display.create_pen(255, 255, 255)
+BLACK = display.create_pen(0, 0, 0)
+CYAN = display.create_pen(0, 255, 255)
+MAGENTA = display.create_pen(255, 0, 255)
+YELLOW = display.create_pen(255, 255, 0)
+GREEN = display.create_pen(0, 255, 0)
+
+def interruption_handler(pin):
+    global timer_count
+    timer_count += 1
+
+# sets up a handy function we can call to clear the screen
+def clear():
+    display.set_pen(BLACK)
+    display.clear()
+    display.update()
+
+
+# set up
+clear()
+
+while True:
+    if button_a.read():
+        lastButton = button_a
+        timer_count = 0
+        
+    if button_b.read():
+        lastButton = button_b
+    if button_x.read():
+        lastButton = button_b
+    if button_y.read():
+        lastButton = button_b
+        
+        
+      
+
+    if lastButton == button_a:
+        utime.sleep(1)
+        timer_count += 1
+        print(timer_count)
+        clear() 
+        display.set_pen(WHITE)                            # change the pen colour
+        #display.text(str(round(timer_count/20)), 10, 10, 240, 4)  # display some text on the screen
+        display.text(str(timer_count),10,10,240,4)
+        display.update()
+