{"id":352,"date":"2026-04-01T19:06:24","date_gmt":"2026-04-01T17:06:24","guid":{"rendered":"https:\/\/yb-isn.fr\/2025\/nsi\/?p=352"},"modified":"2026-04-02T08:36:33","modified_gmt":"2026-04-02T06:36:33","slug":"33-le-retour-de-pacman","status":"publish","type":"post","link":"https:\/\/yb-isn.fr\/2025\/nsi\/2026\/04\/01\/33-le-retour-de-pacman\/","title":{"rendered":"33-Le retour de pacman"},"content":{"rendered":"\n
Objectif : utiliser des capteurs et actionneurs pour transformer la carte microbit en manette pour votre jeu.<\/strong><\/h5>\n\n\n\n

La carte microbit est reli\u00e9e au pc via le port usb. Il faut pour cela trouver le num\u00e9ro du port s\u00e9rie com du pc pour le renseigner dans le programme \u00e0 ex\u00e9cuter dans thonny.<\/p>\n\n\n\n

<\/p>\n\n\n\n

1) Le capteur d’acc\u00e9l\u00e9ration pour d\u00e9tecter l’inclinaison de la carte dans le plan<\/p>\n\n\n\n

Utiliser l’\u00e9diteur microbit de capytale pour communiquer avec la carte et obtenir le num\u00e9ro du port s\u00e9rie.<\/p>\n\n\n\n

https:\/\/capytale2.ac-paris.fr\/web\/c\/fe18-10453811<\/a><\/p>\n\n\n\n

\n

code python pour le pc<\/p><\/div>

<\/path><\/path><\/svg> <\/div>
<\/path><\/path><\/svg> <\/div><\/div><\/div>
\n
import pygame\n\nimport serial\n\npygame.init()\n\nLARGEUR, HAUTEUR = 800, 500\necran = pygame.display.set_mode((LARGEUR, HAUTEUR))\npygame.display.set_caption(\"Pacman pilot\u00e9 par micro:bit\")\nhorloge = pygame.time.Clock()\n\nrectangle = pygame.Rect(0, 0, 80, 60)\nrectangle.center = (LARGEUR \/\/ 2, HAUTEUR \/\/ 2)\n\nvitesse = 280.0\n\n# \u00c0 adapter selon votre machine :\n# Windows : \"COM3\", \"COM4\", ...\n# Linux   : \"\/dev\/ttyACM0\"\n# macOS   : \"\/dev\/cu.usbmodem...\"\nPORT = \"COM11\"\nBAUDRATE = 115200\n\nser = serial.Serial(PORT, BAUDRATE, timeout=0.02)\n\ndx, dy = 0, 0\nen_cours = True\n\nwhile en_cours:\n    dt = horloge.tick(60) \/ 1000.0\n\n    for event in pygame.event.get():\n        if event.type == pygame.QUIT:\n            en_cours = False\n        if event.type == pygame.KEYDOWN and event.key == pygame.K_ESCAPE:\n            en_cours = False\n\n    # lecture des donn\u00e9es venant de la micro:bit\n    if ser.in_waiting:\n        try:\n            ligne = ser.readline().decode(\"utf-8\", errors=\"ignore\").strip()\n            if \";\" in ligne:\n                sx, sy = ligne.split(\";\")\n                dx = int(sx)\n                dy = int(sy)\n        except:\n            pass\n\n    rectangle.x += int(dx * vitesse * dt)\n    rectangle.y += int(dy * vitesse * dt)\n\n    rectangle.clamp_ip(pygame.Rect(0, 0, LARGEUR, HAUTEUR))\n\n    ecran.fill((20, 20, 30))\n    pygame.draw.rect(ecran, (80, 140, 255), rectangle, border_radius=10)\n    pygame.display.flip()\n\nser.close()\npygame.quit()\n\n\n<\/pre>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n
<\/p>\n\n\n\n
2) Modification des couleurs avec les boutons A et B<\/p>\n\n\n\n
https:\/\/capytale2.ac-paris.fr\/web\/c\/c2a1-10453917<\/a><\/p>\n\n\n\n
\n
PC<\/p><\/div>
 <\/path><\/path><\/svg> <\/div>
 <\/path><\/path><\/svg> <\/div><\/div><\/div>
\n
import pygame\npygame.init()\nimport serial\n\npygame.init()\n\nLARGEUR, HAUTEUR = 800, 500\necran = pygame.display.set_mode((LARGEUR, HAUTEUR))\npygame.display.set_caption(\"Rectangle pilot\u00e9 par micro:bit\")\nhorloge = pygame.time.Clock()\n\nrectangle = pygame.Rect(0, 0, 80, 60)\nrectangle.center = (LARGEUR \/\/ 2, HAUTEUR \/\/ 2)\n\nvitesse = 280.0\n\nPORT = \"COM11\"          # \u00e0 adapter\nBAUDRATE = 115200\n\nser = serial.Serial(PORT, BAUDRATE, timeout=0.02)\n\ndx, dy = 0, 0\ncouleur = (80, 140, 255)   # bleu initial\n\nen_cours = True\nwhile en_cours:\n    dt = horloge.tick(60) \/ 1000.0\n\n    for event in pygame.event.get():\n        if event.type == pygame.QUIT:\n            en_cours = False\n        if event.type == pygame.KEYDOWN and event.key == pygame.K_ESCAPE:\n            en_cours = False\n\n    if ser.in_waiting:\n        try:\n            ligne = ser.readline().decode(\"utf-8\", errors=\"ignore\").strip()\n            if ligne:\n                print(ligne)   # debug\n\n            morceaux = ligne.split(\";\")\n            if len(morceaux) == 4:\n                sx, sy, sa, sb = morceaux\n                dx = int(sx)\n                dy = int(sy)\n                a = int(sa)\n                b = int(sb)\n\n                # la couleur change et reste m\u00e9moris\u00e9e\n                if a == 1 and b == 1:\n                    couleur = (255, 255, 0)   # jaune\n                elif a == 1:\n                    couleur = (255, 0, 0)     # rouge\n                elif b == 1:\n                    couleur = (0, 255, 0)     # vert\n\n        except Exception as e:\n            print(\"Erreur lecture s\u00e9rie :\", e)\n\n    rectangle.x += int(dx * vitesse * dt)\n    rectangle.y += int(dy * vitesse * dt)\n\n    rectangle.clamp_ip(pygame.Rect(0, 0, LARGEUR, HAUTEUR))\n\n    ecran.fill((20, 20, 30))\n    pygame.draw.rect(ecran, couleur, rectangle, border_radius=10)\n    pygame.display.flip()\n\nser.close()\npygame.quit()\n\n<\/pre>\n<\/div><\/div>\n\n\n\n
<\/p><\/div>
 <\/path><\/path><\/svg> <\/div>
 <\/path><\/path><\/svg> <\/div><\/div><\/div>
\n
<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Objectif : utiliser des capteurs et actionneurs pour transformer la carte microbit en manette pour votre jeu. La carte microbit […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-352","post","type-post","status-publish","format-standard","hentry","category-non-classe"],"_links":{"self":[{"href":"https:\/\/yb-isn.fr\/2025\/nsi\/wp-json\/wp\/v2\/posts\/352","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yb-isn.fr\/2025\/nsi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yb-isn.fr\/2025\/nsi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yb-isn.fr\/2025\/nsi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yb-isn.fr\/2025\/nsi\/wp-json\/wp\/v2\/comments?post=352"}],"version-history":[{"count":12,"href":"https:\/\/yb-isn.fr\/2025\/nsi\/wp-json\/wp\/v2\/posts\/352\/revisions"}],"predecessor-version":[{"id":367,"href":"https:\/\/yb-isn.fr\/2025\/nsi\/wp-json\/wp\/v2\/posts\/352\/revisions\/367"}],"wp:attachment":[{"href":"https:\/\/yb-isn.fr\/2025\/nsi\/wp-json\/wp\/v2\/media?parent=352"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yb-isn.fr\/2025\/nsi\/wp-json\/wp\/v2\/categories?post=352"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yb-isn.fr\/2025\/nsi\/wp-json\/wp\/v2\/tags?post=352"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}