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243 lines (230 loc) · 13.4 KB
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# Jens Dietrich jd@icplan.de
# 29.01.2024 (Raspberry Pico W)
# eigener Zeichensatz auf OLED Display
# 128 x 65 OLED (21 x 8 Zeichen)
# neu mit extra Kontrast verstellen
from machine import Pin, I2C
import ssd1306, time, display
sda = Pin(12)
scl = Pin(13)
i2c0=I2C(0,sda=sda, scl=scl, freq=400000)
oled = ssd1306.SSD1306_I2C(128, 64, i2c0)
# Zeichensatz 5 x 8 Zeichen, ascii zeichen 0x20 bis 0x7F, linkes byte ist linker Pixelstreifen
z_code = [
0x00,0x00,0x00,0x00,0x00,0x00, #
0x00,0x00,0x00,0x4F,0x00,0x00, # !
0x00,0x00,0x07,0x00,0x07,0x00, # "
0x00,0x14,0x7F,0x14,0x7F,0x14, # #
0x00,0x24,0x2A,0x7F,0x2A,0x12, # $
0x00,0x23,0x13,0x08,0x64,0x62, # %
0x00,0x36,0x49,0x55,0x22,0x50, # &
0x00,0x00,0x05,0x03,0x00,0x00, # '
0x00,0x00,0x1C,0x22,0x41,0x00, # (
0x00,0x00,0x41,0x22,0x1C,0x00, # )
0x00,0x14,0x08,0x3E,0x08,0x14, # *
0x00,0x08,0x08,0x3E,0x08,0x08, # +
0x00,0x00,0x50,0x30,0x00,0x00, # ,
0x00,0x08,0x08,0x08,0x08,0x08, # -
0x00,0x00,0x60,0x60,0x00,0x00, # .
0x00,0x20,0x10,0x08,0x04,0x02, # /
0x00,0x3E,0x51,0x49,0x45,0x3E, # 0
0x00,0x00,0x42,0x7F,0x40,0x00, # 1
0x00,0x42,0x61,0x51,0x49,0x46, # 2
0x00,0x21,0x41,0x45,0x4B,0x31, # 3
0x00,0x18,0x14,0x12,0x7F,0x10, # 4
0x00,0x27,0x45,0x45,0x45,0x39, # 5
0x00,0x3C,0x4A,0x49,0x49,0x30, # 6
0x00,0x01,0x71,0x09,0x05,0x03, # 7
0x00,0x36,0x49,0x49,0x49,0x36, # 8
0x00,0x06,0x49,0x49,0x29,0x1E, # 9
0x00,0x00,0x36,0x36,0x00,0x00, # :
0x00,0x00,0x56,0x36,0x00,0x00, # ;
0x00,0x08,0x14,0x22,0x41,0x00, # <
0x00,0x14,0x14,0x14,0x14,0x14, # =
0x00,0x00,0x41,0x22,0x14,0x08, # >
0x00,0x02,0x01,0x51,0x09,0x06, # ?
0x00,0x32,0x49,0x79,0x41,0x3E, # @
0x00,0x7E,0x11,0x11,0x11,0x7E, # A
0x00,0x7F,0x49,0x49,0x49,0x36, # B
0x00,0x3E,0x41,0x41,0x41,0x22, # C
0x00,0x7F,0x41,0x41,0x22,0x1C, # D
0x00,0x7F,0x49,0x49,0x49,0x41, # E
0x00,0x7F,0x09,0x09,0x09,0x01, # F
0x00,0x3E,0x41,0x49,0x49,0x7A, # G
0x00,0x7F,0x08,0x08,0x08,0x7F, # H
0x00,0x00,0x41,0x7F,0x41,0x00, # I
0x00,0x20,0x40,0x41,0x3F,0x01, # J
0x00,0x7F,0x08,0x14,0x22,0x41, # K
0x00,0x7F,0x40,0x40,0x40,0x40, # L
0x00,0x7F,0x02,0x0C,0x02,0x7F, # M
0x00,0x7F,0x04,0x08,0x10,0x7F, # N
0x00,0x3E,0x41,0x41,0x41,0x3E, # O
0x00,0x7F,0x09,0x09,0x09,0x06, # P
0x00,0x3E,0x41,0x51,0x21,0x5E, # Q
0x00,0x7F,0x09,0x19,0x29,0x46, # R
0x00,0x46,0x49,0x49,0x49,0x31, # S
0x00,0x01,0x01,0x7F,0x01,0x01, # T
0x00,0x3F,0x40,0x40,0x40,0x3F, # U
0x00,0x1F,0x20,0x40,0x20,0x1F, # V
0x00,0x3F,0x40,0x38,0x40,0x3F, # W
0x00,0x63,0x14,0x08,0x14,0x63, # X
0x00,0x07,0x08,0x70,0x08,0x07, # Y
0x00,0x61,0x51,0x49,0x45,0x43, # Z
0x00,0x00,0x7F,0x41,0x41,0x00, # [
0x00,0x15,0x16,0x7C,0x16,0x15, # slash
0x00,0x00,0x41,0x41,0x7F,0x00, # ]
0x00,0x04,0x02,0x01,0x02,0x04, # ^
0x00,0x40,0x40,0x40,0x40,0x40, # _
0x00,0x00,0x01,0x02,0x04,0x00, # `
0x00,0x20,0x54,0x54,0x54,0x78, # a
0x00,0x7F,0x48,0x44,0x44,0x38, # b
0x00,0x38,0x44,0x44,0x44,0x20, # c
0x00,0x38,0x44,0x44,0x48,0x7F, # d
0x00,0x38,0x54,0x54,0x54,0x18, # e
0x00,0x08,0x7E,0x09,0x01,0x02, # f
0x00,0x0C,0x52,0x52,0x52,0x3E, # g
0x00,0x7F,0x08,0x04,0x04,0x78, # h
0x00,0x00,0x44,0x7D,0x40,0x00, # i
0x00,0x20,0x40,0x44,0x3D,0x00, # j
0x00,0x7F,0x10,0x28,0x44,0x00, # k
0x00,0x00,0x41,0x7F,0x40,0x00, # l
0x00,0x7C,0x04,0x18,0x04,0x78, # m
0x00,0x7C,0x08,0x04,0x04,0x78, # n
0x00,0x38,0x44,0x44,0x44,0x38, # o
0x00,0x7C,0x14,0x14,0x14,0x08, # p
0x00,0x08,0x14,0x14,0x18,0x7C, # q
0x00,0x7C,0x08,0x04,0x04,0x08, # r
0x00,0x48,0x54,0x54,0x54,0x20, # s
0x00,0x04,0x3F,0x44,0x40,0x20, # t
0x00,0x3C,0x40,0x40,0x20,0x7C, # u
0x00,0x1C,0x20,0x40,0x20,0x1C, # v
0x00,0x3C,0x40,0x30,0x40,0x3C, # w
0x00,0x44,0x28,0x10,0x28,0x44, # x
0x00,0x0C,0x50,0x50,0x50,0x3C, # y
0x00,0x44,0x64,0x54,0x4C,0x44, # z
0x00,0x00,0x08,0x36,0x41,0x00, # {
0x00,0x00,0x00,0x7F,0x00,0x00, # |
0x00,0x00,0x41,0x36,0x08,0x00, # }
0x00,0x08,0x08,0x2A,0x1C,0x08, # pfeil rechts
0x00,0x08,0x1C,0x2A,0x08,0x08, # pfeil links
]
# line zeichnen
# x=spalte (seitlich) y=zeile (hoch) farbe 0=loeschen 1=schwarz
def dis_line(ax,ay,bx,by,farbe):
x = 0,1
y = 0,1
x1 = 0,1
a = 0
s = 0
if( ax > bx ): # umdrehen
a = bx
bx = ax
ax = a
a = by
by = ay
ay = a
if(ay <= by ): # ay ist kleiner als by -> nach unten
x = bx - ax
y = by - ay
if( x >= y): # flach nach unten
x1 = y / x;
for a in range (ax,bx+1.1):
s = a - ax # schrittweite
x = a
y = ay + (s * x1)
oled.pixel(int(x),int(y),farbe)
else: # steil nach unten
x1 = x / y
for a in range (ay,by+1,1):
s = a - ay # schrittweite
y = a
x = ax + (s * x1)
oled.pixel(int(x),int(y),farbe)
else: # ay ist groesser als by -> noch oben
x = bx - ax
y = ay - by
if( x >= y): # flach nach oben
x1 = y / x
for a in range (ax,bx,1):
s = a - ax # schrittweite
x = a
y = ay - (s * x1)
oled.pixel(int(x),int(y),farbe)
else: # steil nach oben
x1 = x / y
for a in range (by,ay+1,1):
s = a - by # schrittweite
y = ay + by - a
x = ax + (s * x1)
oled.pixel(int(x),int(y),farbe)
return
# zeichenausgabe an bestimmte displayposition direkt auf dogspeicher
# z=zeichen 0x20-0x7f ; x=0-127 ; y=0-63 ; groesse=0-3; farbe=0-1
# xy position ist zeichen (6x8) oben links
def dis_z (z,x,y,g,f):
a=b=c=d=e=h=cn=s=stelle=0
bit = [0,0,0,0,0,0,0,0]
if((z<0x20) or( z>0x7f)):
z=0x20 # nur sichtbare ascii zeichen
stelle = 6*(z-0x20) # stelle berechnen
if (f==0): # farbbit und negation farbbit
c = 0 # keine farbe
cn = 1
else:
c = 1 # mit farbe
cn = 0
for s in range (0,6,1):
a = z_code[stelle]; # 6 streifen laden
stelle +=1
if ((a & 0x80) > 0): bit[0] = c
else: bit[0] = cn # lt. bit farbe setzen
if ((a & 0x40) > 0): bit[1] = c
else: bit[1] = cn
if ((a & 0x20) > 0): bit[2] = c
else: bit[2] = cn
if ((a & 0x10) > 0): bit[3] = c
else: bit[3] = cn
if ((a & 0x08) > 0): bit[4] = c
else: bit[4] = cn
if ((a & 0x04) > 0): bit[5] = c
else: bit[5] = cn
if ((a & 0x02) > 0): bit[6] = c
else: bit[6] = cn
if ((a & 0x01) > 0): bit[7] = c
else: bit[7] = cn
d = g + 1
if((d > 4) or (d < 1)): d = 1 # d darf nur 1-4 sein (groessenscalierung)
for e in range (0,d,1):
for b in range (0,8,1):
for h in range (0,d,1):
if(bit[7-b]==f):
oled.pixel(int(x),int(y),bit[7-b]) # nur farbpixel, kein rahmen um zeichen machen
y+=1
x+=1
y = y - (d*8)
return
# OLED Kontrast
def contrast(x):
oled.contrast(int(x)) # 0-255 moeglich
return
# OLED loeschen
def clear():
oled.fill(0)
return
# Zeichenkette anzeigen (g: 0=21x8 1=10x4 2=5x2)
def dis (t,x,y,g):
if(len(t)<1):
return
w = len(t) # laenge der Zeichenkette
for a in range (0,w,1):
dis_z(ord(t[a]),x,y,g,1)
if(g==0): h=6
if(g==1): h=11
if(g==2): h=21
if(g==3): h=42
x = x + h
return
# OLED anzeigen
def show():
oled.show()
return