Raspberry pi 1 modèle b, partie rouge noeud 17

Aperçu

J'ai joué à un jeu avec node-red du modèle Raspberry Pi 1 b. Le mécanisme est Tout d'abord, le prototypage avec jsdo. L'entrée est un commutateur, l'affichage est OLED. J'utilise une variable de portée, content.flow, dans le flux. Le module exec donne des arguments python.

Environnement de développement

raspberry pi 1 model b raspbian 2016_09_23 jessie lite

Photo

Vidéo

https://www.youtube.com/watch?v=YQItdvvzN2M

Prototypage

http://jsdo.it/ohisama1/Qt7D

Exemple de code

[{"id":"2f69734f.48286c","type":"exec","z":"4f4f703e.a2a9d","command":"sudo python /home/pi/py/pong.py","addpay":true,"append":"","useSpawn":"","timer":"","name":"pong","x":128,"y":1576.5,"wires":[["ec949010.86b94"],[],[]]},{"id":"11c22c0f.285334","type":"rpi-gpio in","z":"4f4f703e.a2a9d","name":"gpio17","pin":"11","intype":"up","debounce":"200","read":true,"x":67,"y":1183,"wires":[["7d016083.ab7d8"]]},{"id":"fa3ed4cc.c6ce88","type":"inject","z":"4f4f703e.a2a9d","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"x":103,"y":1298,"wires":[["4e61184f.06e028","d6368de3.d8471"]]},{"id":"4e61184f.06e028","type":"function","z":"4f4f703e.a2a9d","name":"setup","func":"context.flow.set('x', 64);\ncontext.flow.set('y', 0);\ncontext.flow.set('dx', -4);\ncontext.flow.set('dy', -4);\ncontext.flow.set('z', 54);\ncontext.flow.set('pressed', 1);\ncontext.flow.set('game', 1);\nreturn msg;","outputs":1,"noerr":0,"x":272,"y":1299,"wires":[["e60ff8b.ae56608"]]},{"id":"e60ff8b.ae56608","type":"switch","z":"4f4f703e.a2a9d","name":"owari","property":"game","propertyType":"flow","rules":[{"t":"eq","v":"1","vt":"num"},{"t":"neq","v":"1","vt":"num"}],"checkall":"true","outputs":2,"x":202,"y":1386,"wires":[["a38ac590.71af58"],["7fd95f20.43153","92a7c74a.5a0e68"]]},{"id":"a38ac590.71af58","type":"function","z":"4f4f703e.a2a9d","name":"press check","func":"var pressed = context.flow.get('pressed') || 0;\nvar x = context.flow.get('x') || 0;\nvar y = context.flow.get('y') || 0;\nvar dx = context.flow.get('dx') || 0;\nvar dy = context.flow.get('dy') || 0;\nvar z = context.flow.get('z') || 0;\n\nif (x + dx > 128 - 3 || x + dx < 3)\n{\n    dx = -dx;\n}\nif (y + dy < 3)\n{\n    dy = -dy;\n}\nelse if (y + dy > 64 - 3)\n{\n    if (x > z && x < z + 20)\n    {\n        dy = -dy;\n    }\n    else\n    {\n        context.flow.set('game', 0);\n        msg.payload = [\"stop\"];\n    }\n}\nif (pressed == '0' && z < 128 - 20) \n{\n    z += 6;\n}\nelse if (z > 0) \n{\n    z -= 6;\n}\nx += dx;\ny += dy;    \ncontext.flow.set('x', x);\ncontext.flow.set('y', y);\ncontext.flow.set('dx', dx);\ncontext.flow.set('dy', dy);\ncontext.flow.set('z', z);\nmsg.payload = [x, y, z];\nreturn msg;\n\n","outputs":1,"noerr":0,"x":133,"y":1491,"wires":[["2f69734f.48286c"]]},{"id":"7fd95f20.43153","type":"debug","z":"4f4f703e.a2a9d","name":"","active":true,"console":"false","complete":"false","x":401,"y":1406,"wires":[]},{"id":"7d016083.ab7d8","type":"function","z":"4f4f703e.a2a9d","name":"pressed","func":"var v = msg.payload;\ncontext.flow.set('pressed', v);\nreturn msg;","outputs":1,"noerr":0,"x":272,"y":1186,"wires":[["7fd95f20.43153"]]},{"id":"ec949010.86b94","type":"delay","z":"4f4f703e.a2a9d","name":"","pauseType":"delay","timeout":"50","timeoutUnits":"milliseconds","rate":"1","rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"x":334,"y":1556,"wires":[["e60ff8b.ae56608"]]},{"id":"d6368de3.d8471","type":"exec","z":"4f4f703e.a2a9d","command":"sudo aplay /home/pi/start.wav","addpay":true,"append":"","useSpawn":"","timer":"","name":"start","x":364,"y":1246.5,"wires":[[],[],[]]},{"id":"92a7c74a.5a0e68","type":"exec","z":"4f4f703e.a2a9d","command":"sudo aplay /home/pi/game0.wav","addpay":true,"append":"","useSpawn":"","timer":"","name":"over","x":393,"y":1358.5,"wires":[[],[],[]]}]

Exemple de code

import smbus
import sys

args = sys.argv
list = [int(item) for item in args[1].split(",")]
x = list[0]
y = list[1]
z = list[2]
px = [0] * 128 * 64
px[x + 128 * y] = 1
px[x + 1 + 128 * y] = 1
px[x + 2 + 128 * y] = 1
px[x + 128 + 128 * y] = 1
px[x + 129 + 128 * y] = 1
px[x + 130 + 128 * y] = 1
px[x + 256 + 128 * y] = 1
px[x + 257 + 128 * y] = 1
px[x + 258 + 128 * y] = 1
for i in range(20):
    for j in range(3):
        px[z + i + 128 * (j + 61)] = 1
oled = smbus.SMBus(1)
list0 = [0x21, 0, 127, 0x22, 0, 7]
for k in list0:
    block = []
    block.append(k)
    oled.write_i2c_block_data(0x3c, 0x0, block)
step = 1024
buf = [0] * 8 * step
of = [0, 128, 256, 384, 512, 640, 768, 896]
w = 128
j = 0
for y in range(0, 8 * step, step):
    i = y + w - 1
    while i >= y:
        buf[j] = (px[i] & 0x01) | (px[i + of[1]] & 0x01) << 1 | (px[i + of[2]] & 0x01) << 2 | (px[i + of[3]] & 0x01) << 3 | (px[i + of[4]] & 0x01) << 4 | (px[i + of[5]] & 0x01) << 5 | (px[i + of[6]] & 0x01) << 6 | (px[i + of[7]] & 0x01) << 7
        i -= 1
        j += 1
for i in range(64):
    block = []
    for j in range(16):
        b = i * 16 + j
        block.append(buf[b])
    oled.write_i2c_block_data(0x3c, 0x40, block)
print("ok")