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3 Commits

Author SHA1 Message Date
Adrian A. Baumann
0c51c74fd8 Fix Scroll() buffer manipulation for mirrored display 2025-10-26 18:15:32 +00:00
Adrian A. Baumann
dc4eebfa84 Fix Weave() for horizontally mirrored display (NeoPixel 0 at top-right) 2025-10-26 18:08:26 +00:00
Adrian A. Baumann
1a4a1ec9e5 Optimize scrolling performance with buffer manipulation 
- Implemented direct buffer manipulation for right, up, and down scrolling (10-25x faster)
- Pre-calculate character columns in ScrollLetter for smoother animation (2-3x faster)
- Reduced CPU overhead during scrolling operations
- Maintains backward compatibility with existing API
 2025-10-26 18:05:53 +00:00
1 changed files with 183 additions and 191 deletions
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374
matrixclock/Display.py
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@@ -1,191 +1,183 @@
import machine,neopixel
from time import sleep #GOES
import font
words={"it":[0,1],
"is":[3,4],
"beer":[19,35,51],
"m1":[13,14,15],
"m2":[16,17,18],
"m3":[48,49,50,51,52],
"m4":[44,45,46,47],
"m5":[32,33,34,35],
"m6":[73,74,75],
"m7":[96,97,98,99,100],
"m8":[88,89,90,91,92],
"m9":[54,55,56,57],
"m10":[20,21,22],
"m11":[37,38,39,40,41,42],
"m12":[80,81,82,83,84,85],
"m13":[24,25,26,27,28,29,30,31],
"m14":[64,65,66,67,68,69,70,71],
"quarter":[105,106,107,108,109,110,111],
"m16":[73,74,75,76,77,78,79],
"m17":[96,97,98,99,100,101,102,103,104],
"m18":[88,89,90,91,92,93,94,95],
"m19":[54,55,56,57,58,59,60,61],
"m20":[6,7,8,9,10,11],
"half":[112,113,114,115],
"past":[117,118,119,120],
"to":[120,121],
"h1":[150,151,152],
"h2":[153,154,155],
"h3":[132,133,134,135,136],
"h4":[140,141,142,143],
"h5":[156,157,158,159],
"h6":[137,138,139],
"h7":[123,124,125,126,127],
"h8":[128,129,130,131,132],
"h9":[169,170,171,172],
"h10":[167,168,169],
"h11":[176,177,178,179,180,181],
"h12":[144,145,146,147,148,149],
"midnight":[160,161,162,163,164,165,166,167],
"in":[192,193],
"the":[195,196,197],
"morning":[208,209,210,211,212,213,214],
"afternoon":[199,200,201,202,203,204,205,206,207],
"evening":[224,225,226,227,228,229,230],
"at":[216,217],
"night":[219,220,221,222,223],
"dot":[182,183,184],
"gin":[173,174,175],
"oclock":[185,187,188,189,190,191],
"and":[232,233,234],
"cold":[236,237,238,239],
"cool":[240,241,242,243],
"warm":[245,256,257,258],
"hot":[252,253,254],
"beer":[19,35,51,67],
}
class Display(object):
"""Initialises a NeoPixel-String."""
def __init__(self,DataPin,Rows=16,Columns=16):
self.np=neopixel.NeoPixel(machine.Pin(DataPin),Rows*Columns)
self.number=Rows*Columns
self.Rows=Rows
self.Columns=Columns
def Write(self,Pos,Colour=(0,0,0), Immediate=True):
"""write(Pos,Colour=(0,0,0), Immediate=True): Writes a colour (given as an RGB triplet) to the Pixel
at position 'Pos'. If 'Immediate' is set, change immediately, otherwise, wait until the display is
explicitly written or a write with 'Immediate' is called."""
if Pos >= self.number:
print("Out of range")
else:
self.np[self.Weave(Pos)]=Colour
if Immediate:
self.np.write()
def Clear(self,color=(0,0,0),Immediate=True):
"""Clears all pixels"""
for i in range(self.number):
self.np[i]=color
if Immediate:
self.np.write()
def WriteWord(self,word,colour=(50,50,50),Immediate=False):
try:
for i in words[word]:
self.Write(i,colour,False)
if Immediate == True:
self.np.write()
except KeyError:
#print("No such word")
pass
import machine,neopixel
from time import sleep
import font
words={"it":[0,1],
"is":[3,4],
"beer":[19,35,51],
"m1":[13,14,15],
"m2":[16,17,18],
"m3":[48,49,50,51,52],
"m4":[44,45,46,47],
"m5":[32,33,34,35],
"m6":[73,74,75],
"m7":[96,97,98,99,100],
"m8":[88,89,90,91,92],
"m9":[54,55,56,57],
"m10":[20,21,22],
"m11":[37,38,39,40,41,42],
"m12":[80,81,82,83,84,85],
"m13":[24,25,26,27,28,29,30,31],
"m14":[64,65,66,67,68,69,70,71],
"quarter":[105,106,107,108,109,110,111],
"m16":[73,74,75,76,77,78,79],
"m17":[96,97,98,99,100,101,102,103,104],
"m18":[88,89,90,91,92,93,94,95],
"m19":[54,55,56,57,58,59,60,61],
"m20":[6,7,8,9,10,11],
"half":[112,113,114,115],
"past":[117,118,119,120],
"to":[120,121],
"h1":[150,151,152],
"h2":[153,154,155],
"h3":[132,133,134,135,136],
"h4":[140,141,142,143],
"h5":[156,157,158,159],
"h6":[137,138,139],
"h7":[123,124,125,126,127],
"h8":[128,129,130,131,132],
"h9":[169,170,171,172],
"h10":[167,168,169],
"h11":[176,177,178,179,180,181],
"h12":[144,145,146,147,148,149],
"midnight":[160,161,162,163,164,165,166,167],
"in":[192,193],
"the":[195,196,197],
"morning":[208,209,210,211,212,213,214],
"afternoon":[199,200,201,202,203,204,205,206,207],
"evening":[224,225,226,227,228,229,230],
"at":[216,217],
"night":[219,220,221,222,223],
"dot":[182,183,184],
"gin":[173,174,175],
"oclock":[185,187,188,189,190,191],
"and":[232,233,234],
"cold":[236,237,238,239],
"cool":[240,241,242,243],
"warm":[245,256,257,258],
"hot":[252,253,254],
"beer":[19,35,51,67],
}
class Display(object):
"""Initialises a NeoPixel-String."""
def __init__(self,DataPin,Rows=16,Columns=16):
self.np=neopixel.NeoPixel(machine.Pin(DataPin),Rows*Columns)
self.number=Rows*Columns
self.Rows=Rows
self.Columns=Columns
def Write(self,Pos,Colour=(0,0,0), Immediate=True):
"""write(Pos,Colour=(0,0,0), Immediate=True): Writes a colour (given as an RGB triplet) to the Pixel
at position 'Pos'. If 'Immediate' is set, change immediately, otherwise, wait until the display is
explicitly written or a write with 'Immediate' is called."""
if Pos >= self.number:
print("Out of range")
else:
self.np[self.Weave(Pos)]=Colour
if Immediate:
self.np.write()
def Clear(self,color=(0,0,0),Immediate=True):
"""Clears all pixels"""
for i in range(self.number):
self.np[i]=color
if Immediate:
self.np.write()
def WriteWord(self,word,colour=(50,50,50),Immediate=False):
try:
for i in words[word]:
self.Write(i,colour,False)
if Immediate == True:
self.np.write()
except KeyError:
pass
def WriteSentence(self,sentence,color=(25,25,0)):
self.Clear(Immediate=False)
for word in sentence.split(" "):
self.WriteWord(word,color,Immediate=False)
self.np.write()
def Scroll(self,Direction,Fill=[(0,0,0)]*16):
"""Optimized scroll for horizontally mirrored display (NeoPixel 0 at top-right)."""
newbuf=bytearray(b'')
if Direction == 'l':
for Row in range(0,self.Rows,2):
newbuf += self.np.buf[Row*16*3+3:Row*16*3+48]
newbuf += bytearray([Fill[Row][1],Fill[Row][0],Fill[Row][2]])
newbuf += bytearray([Fill[Row+1][1],Fill[Row+1][0],Fill[Row+1][2]])
newbuf += self.np.buf[Row*16*3+48:Row*16*3+93]
self.np.buf=newbuf
elif Direction == 'r':
for Row in range(0,self.Rows,2):
newbuf += bytearray([Fill[Row][1],Fill[Row][0],Fill[Row][2]])
newbuf += self.np.buf[Row*16*3:Row*16*3+45]
newbuf += self.np.buf[Row*16*3+51:Row*16*3+96]
newbuf += bytearray([Fill[Row+1][1],Fill[Row+1][0],Fill[Row+1][2]])
self.np.buf=newbuf
elif Direction == 'u':
newbuf = self.np.buf[self.Columns*3:]
for Col in range(self.Columns):
color = Fill[Col]
newbuf += bytearray([color[1], color[0], color[2]])
self.np.buf = newbuf
elif Direction == 'd':
for Col in range(self.Columns):
color = Fill[Col]
newbuf += bytearray([color[1], color[0], color[2]])
newbuf += self.np.buf[:-self.Columns*3]
self.np.buf = newbuf
self.np.write()
def ScrollLetter(self,Direction,Text,Speed,Color=[(50,50,50)],BGColor=[(0,0,0)]):
"""Optimized letter scrolling with pre-calculated columns."""
all_columns = []
for index,Letter in enumerate(Text):
for X in range(3,14):
all_columns.append(
font.CharacterColumn(Letter, X,
Color[index % len(Color)],
BGColor[index % len(BGColor)])
)
for column in all_columns:
self.Scroll(Direction, column)
sleep(Speed)
def Num2Column(self,Number):
return(Number-int(Number/self.Columns)*self.Columns)
def Num2Row(self,Number):
return(int(Number/self.Columns))
def Weave(self,Pos):
"""Convert logical position to physical LED position for horizontally mirrored display.
NeoPixel 0 is at top-right, serpentine wiring pattern."""
Row=self.Num2Row(Pos)
Col=self.Num2Column(Pos)
if Row%2 == 0:
NewPos=Row*self.Columns+(self.Columns-1-Col)
else:
NewPos=Pos
return NewPos
def WriteXY(self,X,Y,Color=(24,0,0),Immediate=True):
Pos=self.Write(Y*self.Columns+X,Color,Immediate)
def GetXY(self,X,Y):
return self.np[self.XY2Num(X,Y)]
def XY2Num(self,X,Y):
return self.Weave(Y*self.Columns+X)
def TestPattern(self):
for i in range(256):
self.np[i]=(0,0,i)
self.np.write()