{"id":3656,"date":"2021-10-01T23:10:06","date_gmt":"2021-10-01T21:10:06","guid":{"rendered":"https:\/\/www.breizh56.fr\/crepp2024\/?page_id=3656"},"modified":"2021-11-12T13:29:48","modified_gmt":"2021-11-12T12:29:48","slug":"2021-rpi-pico-micropython","status":"publish","type":"page","link":"https:\/\/www.breizh56.fr\/crepp2024\/2021-rpi-pico-micropython\/","title":{"rendered":"2021 Rpi Pico micropython"},"content":{"rendered":"

la Rasperry Pi Pico 6\u20ac<\/strong><\/a> est un micro controleur puissant<\/a> programmable <\/a>en micro python.<\/p>\n

C’est une carte r\u00e9cente concurren\u00e7ant les Arduino.<\/p>\n

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un IDE\/Environnement de D\u00e9veloppement Informatique Rapsberry Pi Pico est Thonny <\/a>(t\u00e9l\u00e9chargement ici<\/strong><\/a>).<\/p>\n

La led interne est sur le GPIO 25 qu’il faut d\u00e9finir avant de vouloir faire allumer\/\u00e9teindre la led;<\/p>\n

MicroPython v1.16 on 2021-06-18; Raspberry Pi Pico with RP2040 \r\nType \"help()\" for more information.\r\n>>> from machine import Pin<\/strong>\r\nled = Pin(25, Pin.OUT)<\/strong>\r\n\r\nled.toggle()<\/strong><\/pre>\n
il suffira de retaper led.toggle()<\/strong> pour allumer\/\u00e9teindre !<\/p>\n
Pour d\u00e9finir une dur\u00e9e, il faut utiliser le module Timer:<\/p>\n
from<\/span> machine import<\/span> Pin,<\/span> Timer<\/strong>\r\nled =<\/span> Pin(<\/span>25<\/span>,<\/span> Pin.<\/span>OUT)<\/span>\r\ntimer =<\/span> Timer(<\/span>)<\/span>\r\n\r\ndef<\/span> clignote<\/span>(<\/span>timer)<\/span>:<\/span>\r\n    led.<\/span>toggle(<\/span>)<\/span>\r\n\r\ntimer.<\/span>init(<\/span>freq=3.<\/span>5<\/span>,<\/span> mode=<\/span>Timer.<\/span>PERIODIC,<\/span> callback=clignote<\/span>)<\/span><\/code><\/pre>\n
toutes les commandes se passent dans Thonny<\/p>\n
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voici le code pour un feu tricolore<\/strong>:<\/p>\n
m\u00e9thode 1<\/p>\n
from machine import Pin\r\nfrom time import sleep\r\n\r\n# Feux tricolores\r\nF1V = Pin(16, Pin.OUT)\r\nF1O = Pin(17, Pin.OUT)\r\nF1R = Pin(18, Pin.OUT)\r\n\r\nF2V = Pin(19, Pin.OUT)\r\nF2O = Pin(20, Pin.OUT)\r\nF2R = Pin(21, Pin.OUT)\r\n\r\nTempo = 5 #5s\r\n\r\nwhile(True):\r\n #F1V_F2R\r\n F1V.value(True)\r\n F1O.value(False)\r\n F1R.value(False)\r\n F2V.value(False)\r\n F2O.value(False)\r\n F2R.value(True)\r\n sleep(Tempo)\r\n \r\n #F1O_F2R\r\n F1V.value(False)\r\n F1O.value(True)\r\n F1R.value(False)\r\n F2V.value(False)\r\n F2O.value(False)\r\n F2R.value(True)\r\n sleep(Tempo)\r\n \r\n #F1R_F2R\r\n F1V.value(False)\r\n F1O.value(False)\r\n F1R.value(True)\r\n F2V.value(False)\r\n F2O.value(False)\r\n F2R.value(True)\r\n sleep(Tempo\/5)\r\n \r\n #F1R_F2V\r\n F1V.value(False)\r\n F1O.value(False)\r\n F1R.value(True)\r\n F2V.value(True)\r\n F2O.value(False)\r\n F2R.value(False)\r\n sleep(Tempo)\r\n \r\n #F1R_F2O\r\n F1V.value(False)\r\n F1O.value(False)\r\n F1R.value(True)\r\n F2V.value(False)\r\n F2O.value(True)\r\n F2R.value(False)\r\n sleep(Tempo)\r\n \r\n #F1R_F2R\r\n F1V.value(False)\r\n F1O.value(False)\r\n F1R.value(True)\r\n F2V.value(False)\r\n F2O.value(False)\r\n F2R.value(True)\r\n sleep(Tempo\/5)\r\n \r\n<\/pre>\n
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m\u00e9thode 2<\/p>\n
import RPi.GPIO as GPIO\r\nimport time\r\nimport signal\r\nimport sys\r\n\r\nVert =2\r\nOrange =3\r\nRouge = 4\r\n\r\nGPIO.setmode(GPIO.BCM)\r\nGPIO.setup(Vert, GPIO.OUT) # vert\r\nGPIO.setup(Orange, GPIO.OUT) # orange\r\nGPIO.setup(Rouge, GPIO.OUT) # rouge\r\n\r\ndef allLightsOff(signal, frame):\r\n GPIO.output(Vert, False)\r\n GPIO.output(Orange, False)\r\n GPIO.output(Rouge, False)\r\n GPIO.cleanup()\r\n sys.exit(0)\r\n \r\nsignal.signal(signal.SIGINT, allLightsOff)\r\nprint('[CTRL + C pour terminer]')\r\n \r\nwhile True:\r\n GPIO.output(Rouge,True) # rouge allum\u00e9\r\n time.sleep(3)\r\n GPIO.output(Rouge,False) # rouge allum\u00e9\r\n #\r\n GPIO.output(Vert,True) # vert allum\u00e9\r\n time.sleep(5)\r\n GPIO.output(Vert,False) # vert \u00e9teint\r\n #\r\n GPIO.output(Orange,True) # orange allum\u00e9\r\n time.sleep(2)\r\n GPIO.output(Orange,False) # orange allum\u00e9\r\n<\/pre>\n
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anneau 16 Leds ws2812<\/strong><\/p>\n
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# Example using PIO to drive a set of WS2812 LEDs.\r\n\r\nimport array, time\r\nfrom machine import Pin\r\nimport rp2\r\n\r\n# Configure the number of WS2812 LEDs.\r\nNUM_LEDS = 16\r\nPIN_NUM = 6\r\nbrightness = 0.2\r\n\r\n@rp2.asm_pio(sideset_init=rp2.PIO.OUT_LOW, out_shiftdir=rp2.PIO.SHIFT_LEFT, autopull=True,\r\npull_thresh=24)<\/em>\r\ndef ws2812():\r\n T1 = 2\r\n T2 = 5\r\n T3 = 3\r\n wrap_target()\r\n label(\"bitloop\")\r\n out(x, 1) .side(0) [T3 - 1]\r\n jmp(not_x, \"do_zero\") .side(1) [T1 - 1]\r\n jmp(\"bitloop\") .side(1) [T2 - 1]\r\n label(\"do_zero\")\r\n nop() .side(0) [T2 - 1]\r\n wrap()\r\n\r\n# Create the StateMachine with the ws2812 program, outputting on pin\r\nsm = rp2.StateMachine(0, ws2812, freq=8_000_000, sideset_base=Pin(PIN_NUM))\r\n\r\n# Start the StateMachine, it will wait for data on its FIFO.\r\nsm.active(1)\r\n\r\n# Display a pattern on the LEDs via an array of LED RGB values.\r\nar = array.array(\"I\", [0 for _ in range(NUM_LEDS)])\r\n\r\n##########################################################################\r\ndef pixels_show():\r\n dimmer_ar = array.array(\"I\", [0 for _ in range(NUM_LEDS)])\r\n for i,c in enumerate(ar):\r\n r = int(((c >> 8) & 0xFF) * brightness)\r\n g = int(((c >> 16) & 0xFF) * brightness)\r\n b = int((c & 0xFF) * brightness)\r\n dimmer_ar[i] = (g<<16) + (r<<8) + b\r\n sm.put(dimmer_ar, 8)\r\n time.sleep_ms(10)\r\n\r\ndef pixels_set(i, color):\r\n ar[i] = (color[1]<<16) + (color[0]<<8) + color[2]\r\n\r\ndef pixels_fill(color):\r\n for i in range(len(ar)):\r\n pixels_set(i, color)\r\n\r\ndef color_chase(color, wait):\r\n for i in range(NUM_LEDS):\r\n pixels_set(i, color)\r\n time.sleep(wait)\r\n pixels_show()\r\n time.sleep(0.2)\r\n\r\ndef wheel(pos):\r\n # Input a value 0 to 255 to get a color value.\r\n # The colours are a transition r - g - b - back to r.\r\n if pos < 0 or pos > 255:\r\n return (0, 0, 0)\r\n if pos < 85:\r\n return (255 - pos * 3, pos * 3, 0)\r\n if pos < 170:\r\n pos -= 85\r\n return (0, 255 - pos * 3, pos * 3)\r\n pos -= 170\r\n return (pos * 3, 0, 255 - pos * 3)\r\n\r\ndef rainbow_cycle(wait):\r\n for j in range(255):\r\n for i in range(NUM_LEDS):\r\n rc_index = (i * 256 \/\/ NUM_LEDS) + j\r\n pixels_set(i, wheel(rc_index & 255))\r\n pixels_show()\r\n time.sleep(wait)\r\n\r\nBLACK = (0, 0, 0)\r\nRED = (255, 0, 0)\r\nYELLOW = (255, 150, 0)\r\nGREEN = (0, 255, 0)\r\nCYAN = (0, 255, 255)\r\nBLUE = (0, 0, 255)\r\nPURPLE = (180, 0, 255)\r\nWHITE = (255, 255, 255)\r\nCOLORS = (BLACK, RED, YELLOW, GREEN, CYAN, BLUE, PURPLE, WHITE)\r\n\r\nprint(\"fills\")\r\nfor color in COLORS:\r\n pixels_fill(color)\r\n pixels_show()\r\n time.sleep(0.5)\r\n\r\nprint(\"chases\")\r\nfor color in COLORS:\r\n color_chase(color, 0.02)\r\n\r\nprint(\"rainbow\")\r\nrainbow_cycle(0)\r\n\r\n# Eteindre les LED apr\u00e8s 2 secondes\r\ntime.sleep(2)\r\npixels_fill(BLACK)\r\npixels_show()<\/pre>\n
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la Rasperry Pi Pico 6\u20ac est un micro controleur puissant programmable en micro python. C’est une carte r\u00e9cente concurren\u00e7ant les Arduino.   un IDE\/Environnement de D\u00e9veloppement Informatique Rapsberry Pi Pico est Thonny (t\u00e9l\u00e9chargement ici). La led interne est sur le GPIO 25 qu’il faut d\u00e9finir avant de vouloir faire allumer\/\u00e9teindre la led; MicroPython v1.16 on 2021-06-18; Raspberry Pi Pico with […]<\/p>\n","protected":false},"author":7,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3656","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.breizh56.fr\/crepp2024\/wp-json\/wp\/v2\/pages\/3656"}],"collection":[{"href":"https:\/\/www.breizh56.fr\/crepp2024\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.breizh56.fr\/crepp2024\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.breizh56.fr\/crepp2024\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.breizh56.fr\/crepp2024\/wp-json\/wp\/v2\/comments?post=3656"}],"version-history":[{"count":15,"href":"https:\/\/www.breizh56.fr\/crepp2024\/wp-json\/wp\/v2\/pages\/3656\/revisions"}],"predecessor-version":[{"id":3837,"href":"https:\/\/www.breizh56.fr\/crepp2024\/wp-json\/wp\/v2\/pages\/3656\/revisions\/3837"}],"wp:attachment":[{"href":"https:\/\/www.breizh56.fr\/crepp2024\/wp-json\/wp\/v2\/media?parent=3656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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