Feat: ajoute des exercices pour microbit

1NSI/02_Programmation_Python_et_microbit/scripts/04_for_led.py

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+from microbit import *
+import time
+
+for i in range(5):
+    led.plot(i, 0)
+    time.sleep(0.5)

1NSI/02_Programmation_Python_et_microbit/scripts/04_for_list.py

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+from microbit import *
+import time
+
+images = [
+    Image.HEART,
+    Image.HEART_SMALL,
+    Image.HAPPY,
+    Image.SAD,
+    Image.CONFUSED
+]
+
+for img in images:
+    display.show(img)
+    time.sleep(1)

1NSI/02_Programmation_Python_et_microbit/scripts/05_boutons.py

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+from microbit import *
+import time
+
+while True:
+    if button_a.is_pressed():
+        display.show(Image.HAPPY)
+        time.sleep(1)
+        display.clear()
+    elif button_b.is_pressed():
+        display.show(Image.SAD)
+        time.sleep(1)
+        display.clear()
+    else:
+        display.show(Image.HEART)