• Zip-Archiv mit Demo (Lauffähig auch in TigerJython)

Die Datei helper.py unterhalb des tigerjython Verzeichnisses muss eventuell angepasst werden für den eigenen Tisch.

Alle Zugriffe auf die Hardware müssen über die Helper-Klasse erfolgen. So sind die Programme auf allen Tischen lauffähig. Eigene Programme werden idealerweise wie die Demos erstellt. So sind diese sehr einfach auszutauschen und einzubauen.

wificlient.rb

import network
 
import time
import usocket as socket
 
# Hack to get ticks_ms() method in Tigerjython working
if not hasattr(time, 'ticks_ms'):
    from types import MethodType
    def ticks_ms(self):
        return int(round(self.time() * 1000))
    time.ticks_ms = MethodType(ticks_ms, time)
 
    def sleep_ms(self,a):
        time.sleep(a/1000.0)
    time.sleep_ms = MethodType(sleep_ms, time)
# END of Hack
 
class WifiClient:
 
    def __init__(self,helper):
        self.helper = helper
 
    def setup(self):
        self.wlan = network.WLAN(network.STA_IF)
        self.wlan.active(True)
        self.wlan.connect('esp32')
 
        while not self.wlan.isconnected():
            print(self.wlan.status())
            time.sleep_ms(1000) # 1 second sleep
        print("WLAN ok")
 
    def connect(self):                    
        self.addr = socket.getaddrinfo('10.42.42.1', 80)[0][-1]
        self.sk = socket.socket()
        self.sk.connect(self.addr)
        print("Connected to server")
 
    def update(self):
        bytesread = 0
        buf = b''
        while bytesread<450:
            chunk = self.sk.recv(450)
            buf+=chunk
            bytesread+=len(chunk)
        if bytesread==450 and self.helper:
            for y in range(15):
                for x in range(10):
                    p = 3*(y*10+x)
                    self.helper.setPixel(x,y,(buf[p], buf[p+1], buf[p+2]))
            self.helper.np.write()
            #print("Updated")
 
 
    def sendButtons(self):
        if self.helper:
            btns = bytearray([self.helper.getButtons()])
            self.sk.send(btns)
 
 
    def play(self):
        self.setup()        
        if self.helper:
            while self.helper.getButtons()!=255:
                pass
            while self.helper.getButtons()==255:
                pass
        self.connect()
        while True:
            self.update()
 
# Start with    execfile("wificlient.py")
 
if __name__=="__main__":
    from helper import Helper  # Import der Klasse
    helper = Helper()   # Erzeugen der Instanz
#    helper = None
    c = WifiClient(helper)
    c.play()

wifiserver.rb

# See https://docs.micropython.org/en/latest/esp8266/library/network.html
 
import network
import socket
import math
import time
 
# Hack to get ticks_ms() method in Tigerjython working
if not hasattr(time, 'ticks_ms'):
    from types import MethodType
    def ticks_ms(self):
        return int(round(self.time() * 1000))
    time.ticks_ms = MethodType(ticks_ms, time)
 
    def sleep_ms(self,a):
        time.sleep(a/1000.0)
    time.sleep_ms = MethodType(sleep_ms, time)
# END of Hack
 
 
 
class WifiServer:
 
    def __init__(self, helper):
        self.helper = helper
 
 
    def setup(self):
        self.ap = network.WLAN(network.AP_IF)
        self.ap.active(True)
        self.ap.config(essid='esp32', authmode=0)
        self.ap.ifconfig(('10.42.42.1', '255.255.255.0', '10.42.42.1', '10.42.42.1'))
        print("AP up an running")
        self.connections=[]
        # self.cfiles=[]
        self.graphBuffers=[]
        self.buttons=bytearray([])
        addr = socket.getaddrinfo('0.0.0.0', 80)[0][-1]
        self.sk = socket.socket()
        self.sk.bind(addr)
        self.sk.listen(1)
        print("Server up an running")
 
    def clearBuffers(self):
        if self.helper:
            for i in range(150):
                self.helper.np[i]=(0,0,0)
        for b in self.graphBuffers:
            for i in range(450):
                b[i]=0
 
    def waitForConnection(self):
        print("Wait for connection...")
        cl, addr = self.sk.accept()
        self.connections.append(cl)
        print('client connected from', addr)
        #cl_file = cl.makefile('rwb', 0)
        #self.cfiles.append(cl_file)
        self.graphBuffers.append(bytearray([0 for i in range(450)]))
        self.buttons.append(255)
 
    def setPixel(self,x,y,color):
        if (x<10):
            if self.helper:
                self.helper.setPixel(x,y,color)
        else:
            table = x//10-1
            if table<len(self.connections):
                n = y*10+x
                if n>=0 and n<149:
                    self.graphBuffers[table][3*n]=color[0]
                    self.graphBuffers[table][3*n+1]=color[1]
                    self.graphBuffers[table][3*n+2]=color[2]
 
 
 
    def getButtons(self):
        # Get list with available bytes
        available = select.select(self.connections, (), (),0)
        for i in range(len(self.connections)):
            if self.connections[i] in available:                
                b = self.connections[i].recv(1)
                if b=='':
                    self.buttons[i]=255
                else:
                    self.buttons[i]=b[0]
 
 
    def write(self):
        if self.helper:
            self.helper.np.write()
        for i in range(len(self.connections)):
            totalsent = 0
            while totalsent<450:
                sent = self.connections[i].send(bytes(self.graphBuffers[i][totalsent:]))
                if sent == 0:
                    print("socket connection broken")
                    break
                totalsent+=sent
        time.sleep_ms(40) # 25 fps
        #print("sent")
 
    def demo(self,i):
        xmax = (len(self.connections)+1)*10;
        self.clearBuffers()
        for x in range(xmax):
            y = int(math.sin(0.1*(x+i))*7+8)
            self.setPixel(x, y, (255,0,0))
            self.setPixel(x, y+1, (50,0,0))
            self.setPixel(x, y-1, (50,0,0))
            y = int(math.sin(0.06189*(x+i+5))*7+8)
            self.setPixel(x, y, (0,255,0))
            self.setPixel(x, y+1, (0,50,0))
            self.setPixel(x, y-1, (0,50,0))
            y = int(math.sin(0.04189*(x+i+10))*7+8)
            self.setPixel(x, y, (0,0,255))
            self.setPixel(x, y+1, (0,0,50))
            self.setPixel(x, y-1, (0,0,50))
        self.write()
 
 
    def play(self):
        self.setup()
        if self.helper:
            while True:
                while self.helper.getButtons()!=255:
                    pass
                while self.helper.getButtons()==255:
                    pass
                if (self.helper.getButtons()^0xff) &0xf>0:
                    self.waitForConnection()
                else:
                    break                    
        else:
            self.waitForConnection()
 
        i=0
        while True:
            self.demo(i)
            i+=1
 
 
# Start with execfile("wifiserver.py")
 
if __name__=="__main__":
    print("Start Main")
#    from helper import Helper  # Import der Klasse
#    helper = Helper()   # Erzeugen der Instanz
    helper = None
    print(helper)
    s = WifiServer(helper)
    s.play()