class LedPanel():
extra_small_font = None
small_font = None
medium_font = None
large_font = None
arietta_button = None
scores_order = None
im = None
def __init__(self):
#Panel size
size = 32, 32
#True time fonts
self.extra_small_font = ImageFont.truetype("fonts/Ubuntu-B.ttf", 8)
self.small_font = ImageFont.truetype("fonts/Ubuntu-B.ttf", 12)
self.medium_font = ImageFont.truetype("fonts/Ubuntu-B.ttf", 14)
self.large_font = ImageFont.truetype("fonts/Ubuntu-B.ttf", 24)
self.arietta_button = GPIO('PC17', 'INPUT')
self.scores_order = 1
#Create a 32x32 black image
self.im = Image.new("RGB", size, "black")
def refresh(self):
#Generate a PPM image (a format very similar to byte array RGB we need)
output = StringIO.StringIO()
self.im.save(output, format='PPM')
buf = output.getvalue()
#Discard the first 13 bytes of header and save the rest (the
#RGB array) on the ledpanel driver output buffer
out_file = open("/sys/class/ledpanel/rgb_buffer", "w")
out_file.write(buf[13:])
out_file.close()
#Visualizzazione punteggio
def show_scores(self, blue_score, red_score, time_lapse, the_winner_is):
#Legge il tastino dietro Arietta per vedere se deve
#scambiare i risultati
if self.arietta_button.digitalRead() == 0:
if (self.scores_order == 0):
self.scores_order = 1
else:
self.scores_order = 0
print "Premuto %d" % self.scores_order
#Create a draw object to draw primitives on the new image
draw = ImageDraw.Draw(self.im)
#No anti-aliasing
draw.fontmode = "1"
#Disegna un rettangolo nero per coprire scritte precedenti
draw.rectangle((0, 0, 31, 31), outline=0, fill=0)
#Scrive i punteggi
if the_winner_is == "none":
blue_color = (0, 0, 5)
red_color = (5, 0, 0)
if the_winner_is == "blue":
blue_color = (0, 0, 31)
red_color = (2, 0, 0)
if the_winner_is == "red":
blue_color = (0, 0, 2)
red_color = (31, 0, 0)
if self.scores_order == 0:
draw.text((-1, 0), blue_score, blue_color, font=self.medium_font)
draw.text((17, 0), red_score, red_color, font=self.medium_font)
else:
draw.text((-1, 0), red_score, red_color, font=self.medium_font)
draw.text((17, 0), blue_score, blue_color, font=self.medium_font)
#Scrive il tempo
if the_winner_is == "none":
draw.text((0, 18), time_lapse, (0, 3, 0), font=self.small_font)
else:
draw.text((0, 18), time_lapse, (15, 15, 0), font=self.small_font)
if the_winner_is == "none":
#Disegna le linee divisorie
draw.line([0, 16, 32, 16], (3, 3, 0), 2)
draw.line([15, 0, 15, 16], (3, 3, 0), 2)
if the_winner_is == "blue":
draw.line([15, 0, 15, 16], (0, 0, 5), 2)
draw.line([0, 16, 32, 16], (0, 0, 5), 4)
if the_winner_is == "red":
draw.line([15, 0, 15, 16], (5, 0, 0), 2)
draw.line([0, 16, 32, 16], (5, 0, 0), 4)
del draw
self.refresh()
def nolink(self):
draw = ImageDraw.Draw(self.im)
draw.fontmode = "1" #No antialias
#Disegna prima un rettangolo nero per coprire scritte precedenti
draw.rectangle((0, 0, 31, 31), outline=0, fill=0)
draw.text((0, 0), "No", (5, 0, 0), font=self.small_font)
draw.text((0, 10), "Link", (5, 0, 0), font=self.small_font)
draw.text((0, 20), self.get_time(), (0, 5, 0), font=self.small_font)
del draw
self.refresh()
def get_time(self):
d = datetime.now()
return "{:%H:%M}".format(d)
#!/usr/bin/python
from acmepins import GPIO
pin_out = GPIO('J4.39', 'OUTPUT') # PC0
pin_in = GPIO('J4.37', 'INPUT') # PC1
while True:
pin_out.digitalWrite(0 if pin_in.digitalRead() else 1)