I developed a library that produces 3 lines of 8 characters, easy to read from a distance.
It simply uses line drawing to make the characters. The library draws upper case, numeric and a few special characters. I have used it successfully in a number of projects.
Include these files.
Modified PiicoDev Library. PiicoDev_SSD1306_Large.py
##################################################################################################
# Modified from git hub library used by SSD1306_Large Text routines ****
##################################################################################################
# Sends data to the Core Electronics PiicoDev OLED SSD1306 Display
# Ported by Peter Johnston at Core Electronics October 2021
# Original Repos:
# 2021-09-12:
# https://github.com/micropython/micropython/blob/master/drivers/display/ssd1306.py
# 2021-08-01:
# https://github.com/fizban99/microbit_ssd1306/blob/master/ssd1306_text.py
# 2021-07-15:
# https://github.com/adafruit/Adafruit_Python_SSD1306/blob/master/Adafruit_SSD1306/SSD1306.py
# 2021 OCT 14 - Initial release
# 2022 JAN 04 - Remove dependency on PIL module. Improve compatibility with pbm files.
# 2022 FEB 26 - Removed MicroBit and Linux routines to make smaller file
_SET_CONTRAST = 0x81
_SET_ENTIRE_ON = 0xA4
_SET_NORM_INV = 0xA6
_SET_DISP = 0xAE
_SET_MEM_ADDR = 0x20
_SET_COL_ADDR = 0x21
_SET_PAGE_ADDR = 0x22
_SET_DISP_START_LINE = 0x40
_SET_SEG_REMAP = 0xA0
_SET_MUX_RATIO = 0xA8
_SET_IREF_SELECT = 0xAD
_SET_COM_OUT_DIR = 0xC0
_SET_DISP_OFFSET = 0xD3
_SET_COM_PIN_CFG = 0xDA
_SET_DISP_CLK_DIV = 0xD5
_SET_PRECHARGE = 0xD9
_SET_VCOM_DESEL = 0xDB
_SET_CHARGE_PUMP = 0x8D
WIDTH = 128
HEIGHT = 64
from PiicoDev_Unified import *
from math import cos,sin,radians
import framebuf
class PiicoDev_SSD1306(framebuf.FrameBuffer):
def init_display(self):
self.width = WIDTH
self.height = HEIGHT
self.pages = HEIGHT // 8
self.buffer = bytearray(self.pages * WIDTH)
for cmd in (
_SET_DISP, # display off
# address setting
_SET_MEM_ADDR,
0x00, # horizontal
# resolution and layout
_SET_DISP_START_LINE, # start at line 0
_SET_SEG_REMAP | 0x01, # column addr 127 mapped to SEG0
_SET_MUX_RATIO,
HEIGHT - 1,
_SET_COM_OUT_DIR | 0x08, # scan from COM[N] to COM0
_SET_DISP_OFFSET,
0x00,
_SET_COM_PIN_CFG,
0x12,
# timing and driving scheme
_SET_DISP_CLK_DIV,
0x80,
_SET_PRECHARGE,
0xF1,
_SET_VCOM_DESEL,
0x30, # 0.83*Vcc
# display
_SET_CONTRAST,
0xFF,# maximum
_SET_ENTIRE_ON, # output follows RAM contents
_SET_NORM_INV, # not inverted
_SET_IREF_SELECT,
0x30, # enable internal IREF during display on
# charge pump
_SET_CHARGE_PUMP,
0x14,
_SET_DISP | 0x01, # display on
): # on
self.write_cmd(cmd)
def poweroff(self):
self.write_cmd(_SET_DISP)
def poweron(self):
self.write_cmd(_SET_DISP | 0x01)
def setContrast(self, contrast):
self.write_cmd(_SET_CONTRAST)
self.write_cmd(contrast)
def invert(self, invert):
self.write_cmd(_SET_NORM_INV | (invert & 1))
def rotate(self, rotate):
self.write_cmd(_SET_COM_OUT_DIR | ((rotate & 1) << 3))
self.write_cmd(_SET_SEG_REMAP | (rotate & 1))
def show(self):
x0 = 0
x1 = WIDTH - 1
self.write_cmd(_SET_COL_ADDR)
self.write_cmd(x0)
self.write_cmd(x1)
self.write_cmd(_SET_PAGE_ADDR)
self.write_cmd(0)
self.write_cmd(self.pages - 1)
self.write_data(self.buffer)
def write_cmd(self, cmd):
try:
self.i2c.writeto_mem(self.addr, int.from_bytes(b'\x80','big'), bytes([cmd]))
self.comms_err = False
except:
print(i2c_err_str.format(self.addr))
self.comms_err = True
def write_data(self, buf):
try:
self.write_list[1] = buf
self.i2c.writeto_mem(self.addr, int.from_bytes(self.write_list[0],'big'), self.write_list[1])
self.comms_err = False
except:
print(i2c_err_str.format(self.addr))
self.comms_err = True
def circ(self,x,y,r,t=1,c=1):
for i in range(x-r,x+r+1):
for j in range(y-r,y+r+1):
if t==1:
if((i-x)**2 + (j-y)**2 < r**2):
self.pixel(i,j,1)
else:
if((i-x)**2 + (j-y)**2 < r**2) and ((i-x)**2 + (j-y)**2 >= (r-r*t-1)**2):
self.pixel(i,j,c)
def arc(self,x,y,r,stAng,enAng,t=0,c=1):
for i in range(r*(1-t)-1,r):
for ta in range(stAng,enAng,1):
X = int(i*cos(radians(ta))+ x)
Y = int(i*sin(radians(ta))+ y)
self.pixel(X,Y,c)
def load_pbm(self, filename, c):
with open(filename, 'rb') as f:
line = f.readline()
if line.startswith(b'P4') is False:
print('Not a valid pbm P4 file')
return
line = f.readline()
while line.startswith(b'#') is True:
line = f.readline()
data_piicodev = bytearray(f.read())
for byte in range(WIDTH // 8 * HEIGHT):
for bit in range(8):
if data_piicodev[byte] & 1 << bit != 0:
x_coordinate = ((8-bit) + (byte * 8)) % WIDTH
y_coordinate = byte * 8 // WIDTH
if x_coordinate < WIDTH and y_coordinate < HEIGHT:
self.pixel(x_coordinate, y_coordinate, c)
class graph2D:
def __init__(self, originX = 0, originY = HEIGHT-1, width = WIDTH, height = HEIGHT, minValue=0, maxValue=255, c = 1, bars = False):
self.minValue = minValue
self.maxValue = maxValue
self.originX = originX
self.originY = originY
self.width = width
self.height = height
self.c = c
self.m = (1-height)/(maxValue-minValue)
self.offset = originY-self.m*minValue
self.bars = bars
self.data = []
def updateGraph2D(self, graph, value):
graph.data.insert(0,value)
if len(graph.data) > graph.width:
graph.data.pop()
x = graph.originX+graph.width-1
m = graph.c
for value in graph.data:
y = round(graph.m*value + graph.offset)
if graph.bars == True:
for idx in range(y, graph.originY+1):
if x >= graph.originX and x < graph.originX+graph.width and idx <= graph.originY and idx > graph.originY-graph.height:
self.pixel(x,idx, m)
else:
if x >= graph.originX and x < graph.originX+graph.width and y <= graph.originY and y > graph.originY-graph.height:
self.pixel(x,y, m)
x -= 1
class PiicoDev_SSD1306_MicroPython(PiicoDev_SSD1306):
def __init__(self, bus=None, freq=None, sda=None, scl=None, addr=0x3C):
self.i2c = create_unified_i2c(bus=bus, freq=freq, sda=sda, scl=scl)
self.addr = addr
self.temp = bytearray(2)
self.write_list = [b'\x40', None] # Co=0, D/C#=1
self.init_display()
super().__init__(self.buffer, WIDTH, HEIGHT, framebuf.MONO_VLSB)
self.fill(0)
self.show()
def create_PiicoDev_SSD1306(addr=0x3C,bus=None, freq=None, sda=None, scl=None):
return PiicoDev_SSD1306_MicroPython(addr=addr, bus=bus, freq=freq, sda=sda, scl=scl)
Library to draw characters SSD1306_Large.py
################################
# Large Font on SSD1306 OLED
#
# 3 lines of 8 characters each
################################
from PiicoDev_SSD1306_Large import *
class SSD1306_8x3():
def __init__(self):
self.oled = create_PiicoDev_SSD1306()
def display(self, text, p):
# print(posArray[0][0])
for i in range (len(text)):
x=p[i][0]
y=p[i][1]
if text[i]=="A" or text[i]=="a":
self.oled.line(x+1,y+15,x+5,y+1,1)
self.oled.line(x+5,y+1,x+10,y+15,1)
self.oled.line(x+3,y+11,x+8,y+11,1)
elif text[i]=="B" or text[i]=="b":
self.oled.line(x+1,y+15,x+1,y+1,1)
self.oled.line(x+1,y+1,x+6,y+1,1)
self.oled.line(x+6,y+1,x+8,y+3,1)
self.oled.line(x+8,y+3,x+8,y+4,1)
self.oled.line(x+8,y+4,x+6,y+7,1)
self.oled.line(x+5,y+7,x+1,y+7,1)
self.oled.line(x+6,y+7,x+9,y+10,1)
self.oled.line(x+9,y+10,x+9,y+12,1)
self.oled.line(x+9,y+12,x+6,y+15,1)
self.oled.line(x+6,y+15,x+1,y+15,1)
elif text[i]=="C" or text[i]=="c":
self.oled.line(x+10,y+2,x+9,y+1,1)
self.oled.line(x+9,y+1,x+4,y+1,1)
self.oled.line(x+4,y+1,x+2,y+3,1)
self.oled.line(x+2,y+3,x+1,y+7,1)
self.oled.line(x+1,y+7,x+1,y+12,1)
self.oled.line(x+1,y+12,x+4,y+15,1)
self.oled.line(x+4,y+15,x+8,y+15,1)
self.oled.line(x+8,y+15,x+10,y+13,1)
elif text[i]=="D" or text[i]=="d":
self.oled.line(x+1,y+15,x+1,y+1,1)
self.oled.line(x+1,y+1,x+6,y+1,1)
self.oled.line(x+6,y+1,x+9,y+3,1)
self.oled.line(x+9,y+3,x+9,y+12,1)
self.oled.line(x+9,y+12,x+6,y+15,1)
self.oled.line(x+6,y+15,x+1,y+15,1)
elif text[i]=="E" or text[i]=="e":
self.oled.line(x+1,y+15,x+1,y+1,1)
self.oled.line(x+1,y+1,x+9,y+1,1)
self.oled.line(x+1,y+7,x+7,y+7,1)
self.oled.line(x+1,y+15,x+9,y+15,1)
elif text[i]=="F" or text[i]=="f":
self.oled.line(x+1,y+15,x+1,y+1,1)
self.oled.line(x+1,y+1,x+9,y+1,1)
self.oled.line(x+1,y+7,x+6,y+7,1)
elif text[i]=="G" or text[i]=="g":
self.oled.line(x+9,y+2,x+8,y+1,1)
self.oled.line(x+8,y+1,x+4,y+1,1)
self.oled.line(x+4,y+1,x+2,y+3,1)
self.oled.line(x+2,y+3,x+1,y+7,1)
self.oled.line(x+1,y+7,x+1,y+12,1)
self.oled.line(x+1,y+12,x+4,y+15,1)
self.oled.line(x+4,y+15,x+8,y+15,1)
self.oled.line(x+8,y+15,x+10,y+13,1)
self.oled.line(x+10,y+13,x+10,y+9,1)
self.oled.line(x+10,y+9,x+6,y+9,1)
elif text[i]=="H" or text[i]=="h":
self.oled.line(x+1,y+15,x+1,y+1,1)
self.oled.line(x+1,y+7,x+9,y+7,1)
self.oled.line(x+9,y+15,x+9,y+1,1)
elif text[i]=="I" or text[i]=="i":
self.oled.line(x+1,y+1,x+9,y+1,1)
self.oled.line(x+1,y+15,x+9,y+15,1)
self.oled.line(x+5,y+15,x+5,y+1,1)
elif text[i]=="J" or text[i]=="j":
self.oled.line(x+9,y+1,x+9,y+10,1)
self.oled.line(x+9,y+10,x+7,y+15,1)
self.oled.line(x+7,y+15,x+3,y+15,1)
self.oled.line(x+3,y+15,x+1,y+10,1)
elif text[i]=="K" or text[i]=="k":
self.oled.line(x+1,y+15,x+1,y+1,1)
self.oled.line(x+1,y+9,x+8,y+1,1)
self.oled.line(x+4,y+7,x+9,y+15,1)
elif text[i]=="L" or text[i]=="l":
self.oled.line(x+1,y+15,x+1,y+1,1)
self.oled.line(x+1,y+15,x+9,y+15,1)
elif text[i]=="M" or text[i]=="m":
self.oled.line(x+1,y+15,x+1,y+1,1)
self.oled.line(x+1,y+1,x+5,y+7,1)
self.oled.line(x+9,y+1,x+5,y+7,1)
self.oled.line(x+9,y+15,x+9,y+1,1)
elif text[i]=="N" or text[i]=="n":
self.oled.line(x+1,y+15,x+1,y+1,1)
self.oled.line(x+1,y+1,x+9,y+15,1)
self.oled.line(x+9,y+15,x+9,y+1,1)
elif text[i]=="O" or text[i]=="o":
self.oled.line(x+10,y+5,x+8,y+1,1)
self.oled.line(x+8,y+1,x+4,y+1,1)
self.oled.line(x+4,y+1,x+2,y+3,1)
self.oled.line(x+2,y+3,x+1,y+7,1)
self.oled.line(x+1,y+7,x+1,y+12,1)
self.oled.line(x+1,y+12,x+4,y+15,1)
self.oled.line(x+4,y+15,x+7,y+15,1)
self.oled.line(x+7,y+15,x+10,y+12,1)
self.oled.line(x+10,y+12,x+10,y+5,1)
elif text[i]=="P" or text[i]=="p":
self.oled.line(x+1,y+15,x+1,y+1,1)
self.oled.line(x+1,y+1,x+7,y+1,1)
self.oled.line(x+7,y+1,x+9,y+4,1)
self.oled.line(x+9,y+4,x+9,y+6,1)
self.oled.line(x+9,y+6, x+6,y+9,1)
self.oled.line(x+5,y+9,x+1,y+9,1)
elif text[i]=="Q" or text[i]=="q":
self.oled.line(x+10,y+5,x+8,y+1,1)
self.oled.line(x+8,y+1,x+4,y+1,1)
self.oled.line(x+4,y+1,x+2,y+3,1)
self.oled.line(x+2,y+3,x+1,y+7,1)
self.oled.line(x+1,y+7,x+1,y+12,1)
self.oled.line(x+1,y+12,x+4,y+15,1)
self.oled.line(x+4,y+15,x+7,y+15,1)
self.oled.line(x+7,y+15,x+10,y+12,1)
self.oled.line(x+10,y+12,x+10,y+5,1)
self.oled.line(x+6,y+10,x+10,y+15,1)
elif text[i]=="R" or text[i]=="r":
self.oled.line(x+1,y+15,x+1,y+1,1)
self.oled.line(x+1,y+1,x+7,y+1,1)
self.oled.line(x+7,y+1,x+9,y+4,1)
self.oled.line(x+9,y+4,x+9,y+6,1)
self.oled.line(x+9,y+6, x+6,y+9,1)
self.oled.line(x+5,y+9,x+1,y+9,1)
self.oled.line(x+5,y+9,x+9,y+15,1)
elif text[i]=="S" or text[i]=="s":
self.oled.line(x+9,y+2,x+7,y+1,1)
self.oled.line(x+7,y+1,x+3,y+1,1)
self.oled.line(x+3,y+1,x+2,y+2,1)
self.oled.line(x+3,y+1,x+2,y+2,1)
self.oled.line(x+2,y+2,x+1,y+5,1)
self.oled.line(x+1,y+5,x+5,y+7,1)
self.oled.line(x+5,y+7,x+9,y+8,1)
self.oled.line(x+9,y+8,x+10,y+11,1)
self.oled.line(x+10,y+11,x+10,y+13,1)
self.oled.line(x+10,y+13,x+7,y+15,1)
self.oled.line(x+7,y+15,x+4,y+15,1)
self.oled.line(x+4,y+15,x+1,y+13,1)
elif text[i]=="T" or text[i]=="t":
self.oled.line(x+5,y+15,x+5,y+1,1)
self.oled.line(x+1,y+1,x+9,y+1,1)
elif text[i]=="U" or text[i]=="u":
self.oled.line(x+1,y+1,x+1,y+13,1)
self.oled.line(x+1,y+13,x+3,y+15,1)
self.oled.line(x+3,y+15,x+7,y+15,1)
self.oled.line(x+7,y+15,x+9,y+13,1)
self.oled.line(x+9,y+13,x+9,y+1,1)
elif text[i]=="V" or text[i]=="v":
self.oled.line(x+1,y+1,x+5,y+15,1)
self.oled.line(x+5,y+15,x+9,y+1,1)
elif text[i]=="W" or text[i]=="w":
self.oled.line(x+1,y+1,x+3,y+15,1)
self.oled.line(x+3,y+15,x+5,y+8,1)
self.oled.line(x+5,y+8,x+8,y+15,1)
self.oled.line(x+8,y+15,x+10,y+1,1)
elif text[i]=="X" or text[i]=="x":
self.oled.line(x+1,y+1,x+9,y+15,1)
self.oled.line(x+9,y+1,x+1,y+15,1)
elif text[i]=="Y" or text[i]=="y":
self.oled.line(x+5,y+15,x+5,y+7,1)
self.oled.line(x+5,y+7,x+1,y+1,1)
self.oled.line(x+5,y+7,x+10,y+1,1)
elif text[i]=="Z" or text[i]=="z":
self.oled.line(x+1,y+1,x+9,y+1,1)
self.oled.line(x+1,y+15,x+9,y+1,1)
self.oled.line(x+1,y+15,x+9,y+15,1)
elif text[i]==".":
self.oled.line(x+1,y+14,x+2,y+14,1)
self.oled.line(x+1,y+15,x+2,y+15,1)
elif text[i]=="!":
self.oled.line(x+1,y+14,x+1,y+15,1)
self.oled.line(x+1,y+1,x+1,y+10,1)
elif text[i]=="?":
self.oled.line(x+5,y+14,x+6,y+14,1)
self.oled.line(x+5,y+15,x+6,y+15,1)
self.oled.line(x+5,y+10,x+5,y+8,1)
self.oled.line(x+5,y+8,x+8,y+6,1)
self.oled.line(x+8,y+6,x+9,y+2,1)
self.oled.line(x+8,y+1,x+4,y+1,1)
elif text[i]=="/":
self.oled.line(x+9,y+1,x+1,y+15,1)
elif text[i]==":":
self.oled.line(x+1,y+14,x+2,y+14,1)
self.oled.line(x+1,y+15,x+2,y+15,1)
self.oled.line(x+1,y+6,x+2,y+6,1)
self.oled.line(x+1,y+5,x+2,y+5,1)
elif text[i]==",":
self.oled.line(x+1,y+13,x+1,y+14,1)
self.oled.line(x+2,y+13,x+2,y+17,1)
self.oled.line(x+1,y+17,x+2,y+17,1)
elif text[i]=="&":
self.oled.line(x+4,y+7,x+2,y+5,1)
self.oled.line(x+2,y+5,x+2,y+3,1)
self.oled.line(x+2,y+3,x+3,y+2,1)
self.oled.line(x+3,y+2,x+4,y+1,1)
self.oled.line(x+4,y+1,x+6,y+1,1)
self.oled.line(x+6,y+1,x+7,y+2,1)
self.oled.line(x+7,y+2,x+8,y+3,1)
self.oled.line(x+8,y+3,x+8,y+4,1)
self.oled.line(x+8,y+4,x+6,y+6,1)
self.oled.line(x+6,y+6,x+1,y+10,1)
self.oled.line(x+1,y+10,x+1,y+13,1)
self.oled.line(x+1,y+13,x+3,y+15,1)
self.oled.line(x+3,y+15,x+6,y+15,1)
self.oled.line(x+6,y+15,x+9,y+9,1)
self.oled.line(x+4,y+8,x+10,y+15,1)
elif text[i]=="+":
self.oled.line(x+5,y+5,x+5,y+11,1)
self.oled.line(x+2,y+8,x+8,y+8,1)
elif text[i]=="-":
self.oled.line(x+2,y+8,x+8,y+8,1)
elif text[i]=="=":
self.oled.line(x+2,y+6,x+8,y+6,1)
self.oled.line(x+2,y+9,x+8,y+9,1)
elif text[i]=="0":
self.oled.line(x+10,y+5,x+8,y+1,1)
self.oled.line(x+8,y+1,x+4,y+1,1)
self.oled.line(x+4,y+1,x+2,y+3,1)
self.oled.line(x+2,y+3,x+1,y+7,1)
self.oled.line(x+1,y+7,x+1,y+12,1)
self.oled.line(x+1,y+12,x+4,y+15,1)
self.oled.line(x+4,y+15,x+7,y+15,1)
self.oled.line(x+7,y+15,x+10,y+12,1)
self.oled.line(x+10,y+12,x+10,y+5,1)
self.oled.line(x+9,y+4,x+2,y+12,1)
elif text[i]=="1":
self.oled.line(x+5,y+15,x+5,y+1,1)
self.oled.line(x+5,y+1,x+2,y+3,1)
elif text[i]=="2":
self.oled.line(x+1,y+3,x+2,y+1,1)
self.oled.line(x+2,y+1,x+7,y+1,1)
self.oled.line(x+7,y+1,x+9,y+3,1)
self.oled.line(x+9,y+3,x+9,y+6,1)
self.oled.line(x+9,y+6,x+2,y+13,1)
self.oled.line(x+2,y+13,x+1,y+15,1)
self.oled.line(x+1,y+15,x+10,y+15,1)
elif text[i]=="3":
self.oled.line(x+1,y+3,x+2,y+1,1)
self.oled.line(x+2,y+1,x+7,y+1,1)
self.oled.line(x+7,y+1,x+9,y+3,1)
self.oled.line(x+9,y+3,x+9,y+5,1)
self.oled.line(x+9,y+5,x+7,y+7,1)
self.oled.line(x+7,y+7,x+4,y+7,1)
self.oled.line(x+7,y+8,x+9,y+9,1)
self.oled.line(x+9,y+9,x+9,y+12,1)
self.oled.line(x+9,y+12,x+7,y+15,1)
self.oled.line(x+7,y+15,x+3,y+15,1)
self.oled.line(x+3,y+15,x+1,y+13,1)
elif text[i]=="4":
self.oled.line(x+8,y+1,x+8,y+15,1)
self.oled.line(x+1,y+1,x+1,y+7,1)
self.oled.line(x+1,y+7,x+9,y+7,1)
elif text[i]=="5":
self.oled.line(x+9,y+1,x+1,y+1,1)
self.oled.line(x+1,y+1,x+1,y+7,1)
self.oled.line(x+7,y+7,x+1,y+7,1)
self.oled.line(x+7,y+8,x+9,y+9,1)
self.oled.line(x+9,y+9,x+9,y+12,1)
self.oled.line(x+9,y+12,x+7,y+15,1)
self.oled.line(x+7,y+15,x+3,y+15,1)
self.oled.line(x+3,y+15,x+1,y+13,1)
elif text[i]=="6":
self.oled.line(x+10,y+3,x+8,y+1,1)
self.oled.line(x+8,y+1,x+4,y+1,1)
self.oled.line(x+4,y+1,x+2,y+3,1)
self.oled.line(x+2,y+3,x+1,y+7,1)
self.oled.line(x+1,y+7,x+1,y+12,1)
self.oled.line(x+1,y+12,x+4,y+15,1)
self.oled.line(x+4,y+15,x+7,y+15,1)
self.oled.line(x+7,y+15,x+10,y+13,1)
self.oled.line(x+10,y+13,x+10,y+9,1)
self.oled.line(x+10,y+9,x+8,y+7,1)
self.oled.line(x+8,y+7,x+4,y+7,1)
self.oled.line(x+4,y+7,x+2,y+9,1)
elif text[i]=="7":
self.oled.line(x+1,y+1,x+10,y+1,1)
self.oled.line(x+10,y+1,x+3,y+15,1)
elif text[i]=="8":
self.oled.line(x+4,y+7,x+2,y+5,1)
self.oled.line(x+2,y+5,x+2,y+3,1)
self.oled.line(x+2,y+3,x+3,y+2,1)
self.oled.line(x+3,y+2,x+4,y+1,1)
self.oled.line(x+4,y+1,x+6,y+1,1)
self.oled.line(x+6,y+1,x+7,y+2,1)
self.oled.line(x+7,y+2,x+8,y+3,1)
self.oled.line(x+8,y+3,x+8,y+5,1)
self.oled.line(x+8,y+5,x+6,y+7,1)
self.oled.line(x+1,y+10,x+1,y+13,1)
self.oled.line(x+1,y+13,x+3,y+15,1)
self.oled.line(x+3,y+15,x+7,y+15,1)
self.oled.line(x+7,y+15,x+9,y+13,1)
self.oled.line(x+9,y+13,x+9,y+10,1)
self.oled.line(x+9,y+10,x+6,y+7,1)
self.oled.line(x+6,y+7,x+4,y+7,1)
self.oled.line(x+4,y+7,x+2,y+9,1)
elif text[i]=="9":
self.oled.line(x+10,y+6,x+8,y+8,1)
self.oled.line(x+8,y+8,x+3,y+8,1)
self.oled.line(x+3,y+8,x+1,y+5,1)
self.oled.line(x+1,y+5,x+1,y+3,1)
self.oled.line(x+1,y+3,x+3,y+1,1)
self.oled.line(x+3,y+1,x+8,y+1,1)
self.oled.line(x+8,y+1,x+10,y+3,1)
self.oled.line(x+10,y+3,x+10,y+10,1)
self.oled.line(x+10,y+10,x+9,y+13,1)
self.oled.line(x+9,y+13,x+7,y+15,1)
self.oled.line(x+7,y+15,x+3,y+15,1)
self.oled.line(x+3,y+15,x+1,y+13,1)
elif text[i]==" ":
self.oled.fill_rect(x, y, 14, 21, 0)
pass
return
def line1(self, line1text):
self.display(line1text, [(0,0), (15,0), (30,0), (45,0), (60,0), (75,0), (90,0), (105,0)])
return
def line2(self, line2text):
self.display(line2text, [(0,22),(15,22),(30,22),(45,22),(60,22),(75,22),(90,22),(105,22)])
return
def line3(self, line3text):
self.display(line3text, [(0,44),(15,44),(30,44),(45,44),(60,44),(75,44),(90,44),(105,44)])
return
def draw_pixel(self, x, y):
self.oled.pixel(x,y,1)
# self.oled.show()
def draw_line(self, x1, y1, x2, y2):
self.oled.line(x1,y1,x2,y2,1)
# self.oled.show()
def Clear(self):
self.oled.fill(0)
self.oled.show()
return
def Show(self):
self.oled.show()
return
"""
def wrap(string):
if len(string)> 8:
spaceArray = []
cut1 = 23
cut2 = 23
cut3 = 23
for character in range (len(string)):
if string[character] == " ":
spaceArray.append(character)
for i in range (len(spaceArray)):
if spaceArray[i] < 8 :
cut1= spaceArray[i]
#cut[0]=space
if 8 < spaceArray[i] < 16 :
cut2=spaceArray[i]
if 16 < spaceArray[i] < 24 :
cut3=spaceArray[i]
line1(string[0:(cut1)])
line2(string[(cut1+1):(cut2)])
line3(string[(cut2+1):(cut3)])
else:
line1(string)
#line2(line2text)
#line3(line3text)
return
"""
How to use library.
from SSD1306_Large import SSD1306_8x3
display = SSD1306_8x3()
display.Clear()
display.line1('ABCDEFGH')
display.line2('01234567')
display.line3(',!?/:+-=')
display.Show()
Regards
Jim
