arduino-mpduino/serialmpcduino.py

import serial
import time

class SerialMPCduino(object):

    stats = {
			'volume'	:None,
			'title'		:None,
			'artist'	:None,
			'album'		:None,
			'playing'	:None,
			'repeat'	:None,
			'shuffle'	:None,
			'random'	:None,
			'consume'	:None,
			'updating'	:None,
			'single'	:None
	}
    
    keys = {
			'read'		:'E',
			'write'		:'S',
			'reset'		:'R',
			'volume'	:'V',
			'title'		:'T',
			'artist'	:'A',
			'album'		:'a',
			'playing'	:'P',
			'repeat'	:'r',
			'shuffle'	:'z',
			'random'	:'x',
			'consume'	:'c',
			'updating'	:'u',
			'single'	:'s',
			'humidity'	:'h',
			'temperature'	:'t',
		}
    
    def __init__(self, tty, baud, verbose):
        self.tty = tty
        self.baud = baud
        self.verbose = verbose
        self.serial = serial.Serial(tty, baud)
        time.sleep(0.2)
        
        if (self.serial.readline().decode('ascii').strip() == self.keys['write']*4):
			print("All okay")
        time.sleep(0.5)
             
    def __del__(self):
        self.close()
		
    def close(self):
        self.serial = None	
		    
    def setup(self):
        print("Setup")
        print(self.serial)
        print("------")

    def vprint(self, string):
        if self.verbose > 1:
            print(string)

    def check_serial(self):
        if ( self.serial.inWaiting() > 0 ): 
            #if incoming bytes are waiting to be read from the serial input buffer
            #read the bytes and convert from binary array to ASCII
            string = self.serial.readline().decode('ascii')
            if string != 1 and string != "\n":
				print(string)
            return string

    def write_serial(self, string):
        self.vprint(self.keys['write']+string)
        wait_time = 0.3 + 20 * (len(string)+2) / float(self.baud)
        self.serial.write(self.keys['write']+string+"\n")
        time.sleep(wait_time)

        string = self.serial.readline().decode('ascii')
        time.sleep(0.2)
        self.vprint(string)
        self.vprint(self.check_serial())
        self.vprint("Ready")
                
    def read_serial(self, string):
        self.serial.write(self.keys['read']+string+"\n")
        return self.serial.readline()


	def read_prop(self, prop):
		return self.read_serial(prop)
		
	def write_prop(self, prop, new=None, force=False):
		if force or new is not None and self.stats[prop] != new:
			#write to serial
			if force :
				new = self.stats[prop]
			
			self.write_serial(prop+new)
			
    def Checker(self, varfrom, varto, string):
        if varfrom == varto:
            return 0

        self.write_serial(string)
        return 1
    
    def write_all(self):
		for prop in stats:
			write_prop(prop, force=True)
		return

	### Properties
	
	# Ints
    @property
    def volume(self):
            return read_prop('volume')
    @volume.setter
    def volume(self, new):
        if self.Checker(self.stats['volume'], new, self.keys['volume']+str(new)):
            print("Volume: {}".format(new))
            self.stats['volume'] = new

    # Strings
    @property
    def title(self):
            return read_prop('title')
    @title.setter
    def title(self, new):
        if self.Checker(self.stats['title'], new, self.keys['title']+str(new)):
            print("Title: {}".format(new))
            self.stats['title'] = new

    @property
    def artist(self):
            return read_prop('artist')
    @artist.setter
    def artist(self, new):
        if self.Checker(self.stats['artist'], new, self.keys['artist']+str(new)):
            print("Artist: {}".format(new))
            self.stats['artist'] = new

    @property
    def album(self):
            return read_prop('album')
    @album.setter
    def album(self, new):
        if self.Checker(self.stats['album'], new, self.keys['album']+str(new)):
            print("Album: {}".format(new))
            self.stats['album'] = new

    # Booleans
    @property
    def repeat(self):
            return read_prop('repeat')
    @repeat.setter
    def repeat(self, new):
        if self.Checker(self.stats['repeat'], new, self.keys['repeat']+str(new*1)):
            print("Repeat: {}".format(new))
            self.stats['repeat'] = new

    @property
    def shuffle(self):
            return read_prop('shuffle')
    @shuffle.setter
    def shuffle(self, new):
        if self.Checker(self.stats['shuffle'], new, self.keys['shuffle']+str(new*1)):
            print("Shuffle: {}".format(new))
            self.stats['shuffle'] = new
    # Booleans
    @property
    def repeat(self):
            return read_prop('repeat')
    @repeat.setter
    def repeat(self, new):
        if self.Checker(self.stats['repeat'], new, self.keys['repeat']+str(new*1)):
            print("Repeat: {}".format(new))
            self.stats['repeat'] = new

    @property
    def shuffle(self):
            return read_prop('shuffle')
    @shuffle.setter
    def shuffle(self, new):
        if self.Checker(self.stats['shuffle'], new, self.keys['shuffle']+str(new*1)):
            print("Shuffle: {}".format(new))
            self.stats['shuffle'] = new

    @property
    def single(self):
            return read_prop('single')
    @single.setter
    def single(self, single):
        if self.Checker(self.stats['single'], new, self.keys['single']+str(new*1)):
            print("Single: {}".format(new))
            self.stats['single'] = new

    @property
    def random(self):
            return read_prop('random')
    @random.setter
    def random(self, new):
        if self.Checker(self.stats['random'], new, self.keys['random']+str(new*1)):
            print("Random: {}".format(new))
            self.stats['random'] = new

    @property
    def consume(self):
            return read_prop('random')
    @consume.setter
    def consume(self, new):
        if self.Checker(self.stats['consume'], new, self.keys['consume']+str(new*1)):
            print("Consume: {}".format(new))
            self.stats['consume'] = new

    @property
    def update(self):
            return read_prop('updating')
    @update.setter
    def update(self, new):
        if self.Checker(self.stats['updating'], new, self.keys['updating']+str(new*1)):
            print("Update: {}".format(new))
            self.stats['updating'] = new

    @property
    def playing(self):
            return read_prop('playing')
    @playing.setter
    def playing(self, new):
        if self.Checker(self.stats['playing'], new, self.keys['playing']+str(new*1)):
            print("Playing: {}".format(new))
            self.stats['playing'] = new