环境搭建包括接线去看我这篇文章
使用SH1106库
首先将下面的代码保存为sh1106,并且上传到pico根目录
#
# MicroPython SH1106 OLED driver, I2C and SPI interfaces
#
# The MIT License (MIT)
#
# Copyright (c) 2016 Radomir Dopieralski (@deshipu),
# 2017-2021 Robert Hammelrath (@robert-hh)
# 2021 Tim Weber (@scy)
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# Sample code sections for ESP8266 pin assignments
# ------------ SPI ------------------
# Pin Map SPI
# - 3v - xxxxxx - Vcc
# - G - xxxxxx - Gnd
# - D7 - GPIO 13 - Din / MOSI fixed
# - D5 - GPIO 14 - Clk / Sck fixed
# - D8 - GPIO 4 - CS (optional, if the only connected device)
# - D2 - GPIO 5 - D/C
# - D1 - GPIO 2 - Res
#
# for CS, D/C and Res other ports may be chosen.
#
# from machine import Pin, SPI
# import sh1106
# spi = SPI(1, baudrate=1000000)
# display = sh1106.SH1106_SPI(128, 64, spi, Pin(5), Pin(2), Pin(4))
# display.sleep(False)
# display.fill(0)
# display.text('Testing 1', 0, 0, 1)
# display.show()
#
# --------------- I2C ------------------
#
# Pin Map I2C
# - 3v - xxxxxx - Vcc
# - G - xxxxxx - Gnd
# - D2 - GPIO 5 - SCK / SCL
# - D1 - GPIO 4 - DIN / SDA
# - D0 - GPIO 16 - Res
# - G - xxxxxx CS
# - G - xxxxxx D/C
#
# Pin's for I2C can be set almost arbitrary
#
# from machine import Pin, I2C
# import sh1106
#
# i2c = I2C(scl=Pin(5), sda=Pin(4), freq=400000)
# display = sh1106.SH1106_I2C(128, 64, i2c, Pin(16), 0x3c)
# display.sleep(False)
# display.fill(0)
# display.text('Testing 1', 0, 0, 1)
# display.show()
from micropython import const
import utime as time
import framebuf
# a few register definitions
_SET_CONTRAST = const(0x81)
_SET_NORM_INV = const(0xa6)
_SET_DISP = const(0xae)
_SET_SCAN_DIR = const(0xc0)
_SET_SEG_REMAP = const(0xa0)
_LOW_COLUMN_ADDRESS = const(0x00)
_HIGH_COLUMN_ADDRESS = const(0x10)
_SET_PAGE_ADDRESS = const(0xB0)
class SH1106(framebuf.FrameBuffer):
def __init__(self, width, height, external_vcc, rotate=0):
self.width = width
self.height = height
self.external_vcc = external_vcc
self.flip_en = rotate == 180 or rotate == 270
self.rotate90 = rotate == 90 or rotate == 270
self.pages = self.height // 8
self.bufsize = self.pages * self.width
self.renderbuf = bytearray(self.bufsize)
self.pages_to_update = 0
if self.rotate90:
self.displaybuf = bytearray(self.bufsize)
# HMSB is required to keep the bit order in the render buffer
# compatible with byte-for-byte remapping to the display buffer,
# which is in VLSB. Else we'd have to copy bit-by-bit!
super().__init__(self.renderbuf, self.height, self.width,
framebuf.MONO_HMSB)
else:
self.displaybuf = self.renderbuf
super().__init__(self.renderbuf, self.width, self.height,
framebuf.MONO_VLSB)
# flip() was called rotate() once, provide backwards compatibility.
self.rotate = self.flip
self.init_display()
def init_display(self):
self.reset()
self.fill(0)
self.show()
self.poweron()
# rotate90 requires a call to flip() for setting up.
self.flip(self.flip_en)
def poweroff(self):
self.write_cmd(_SET_DISP | 0x00)
def poweron(self):
self.write_cmd(_SET_DISP | 0x01)
if self.delay:
time.sleep_ms(self.delay)
def flip(self, flag=None, update=True):
if flag is None:
flag = not self.flip_en
mir_v = flag ^ self.rotate90
mir_h = flag
self.write_cmd(_SET_SEG_REMAP | (0x01 if mir_v else 0x00))
self.write_cmd(_SET_SCAN_DIR | (0x08 if mir_h else 0x00))
self.flip_en = flag
if update:
self.show(True) # full update
def sleep(self, value):
self.write_cmd(_SET_DISP | (not value))
def contrast(self, contrast):
self.write_cmd(_SET_CONTRAST)
self.write_cmd(contrast)
def invert(self, invert):
self.write_cmd(_SET_NORM_INV | (invert & 1))
def show(self, full_update = False):
# self.* lookups in loops take significant time (~4fps).
(w, p, db, rb) = (self.width, self.pages,
self.displaybuf, self.renderbuf)
if self.rotate90:
for i in range(self.bufsize):
db[w * (i % p) + (i // p)] = rb[i]
if full_update:
pages_to_update = (1 << self.pages) - 1
else:
pages_to_update = self.pages_to_update
#print("Updating pages: {:08b}".format(pages_to_update))
for page in range(self.pages):
if (pages_to_update & (1 << page)):
self.write_cmd(_SET_PAGE_ADDRESS | page)
self.write_cmd(_LOW_COLUMN_ADDRESS | 2)
self.write_cmd(_HIGH_COLUMN_ADDRESS | 0)
self.write_data(db[(w*page):(w*page+w)])
self.pages_to_update = 0
def pixel(self, x, y, color=None):
if color is None:
return super().pixel(x, y)
else:
super().pixel(x, y , color)
page = y // 8
self.pages_to_update |= 1 << page
def text(self, text, x, y, color=1):
super().text(text, x, y, color)
self.register_updates(y, y+7)
def line(self, x0, y0, x1, y1, color):
super().line(x0, y0, x1, y1, color)
self.register_updates(y0, y1)
def hline(self, x, y, w, color):
super().hline(x, y, w, color)
self.register_updates(y)
def vline(self, x, y, h, color):
super().vline(x, y, h, color)
self.register_updates(y, y+h-1)
def fill(self, color):
super().fill(color)
self.pages_to_update = (1 << self.pages) - 1
def blit(self, fbuf, x, y, key=-1, palette=None):
super().blit(fbuf, x, y, key, palette)
self.register_updates(y, y+self.height)
def scroll(self, x, y):
# my understanding is that scroll() does a full screen change
super().scroll(x, y)
self.pages_to_update = (1 << self.pages) - 1
def fill_rect(self, x, y, w, h, color):
super().fill_rect(x, y, w, h, color)
self.register_updates(y, y+h-1)
def rect(self, x, y, w, h, color):
super().rect(x, y, w, h, color)
self.register_updates(y, y+h-1)
def register_updates(self, y0, y1=None):
# this function takes the top and optional bottom address of the changes made
# and updates the pages_to_change list with any changed pages
# that are not yet on the list
start_page = max(0, y0 // 8)
end_page = max(0, y1 // 8) if y1 is not None else start_page
# rearrange start_page and end_page if coordinates were given from bottom to top
if start_page > end_page:
start_page, end_page = end_page, start_page
for page in range(start_page, end_page+1):
self.pages_to_update |= 1 << page
def reset(self, res):
if res is not None:
res(1)
time.sleep_ms(1)
res(0)
time.sleep_ms(20)
res(1)
time.sleep_ms(20)
class SH1106_I2C(SH1106):
def __init__(self, width, height, i2c, res=None, addr=0x3c,
rotate=0, external_vcc=False, delay=0):
self.i2c = i2c
self.addr = addr
self.res = res
self.temp = bytearray(2)
self.delay = delay
if res is not None:
res.init(res.OUT, value=1)
super().__init__(width, height, external_vcc, rotate)
def write_cmd(self, cmd):
self.temp[0] = 0x80 # Co=1, D/C#=0
self.temp[1] = cmd
self.i2c.writeto(self.addr, self.temp)
def write_data(self, buf):
self.i2c.writeto(self.addr, b'\x40'+buf)
def reset(self):
super().reset(self.res)
class SH1106_SPI(SH1106):
def __init__(self, width, height, spi, dc, res=None, cs=None,
rotate=0, external_vcc=False, delay=0):
dc.init(dc.OUT, value=0)
if res is not None:
res.init(res.OUT, value=0)
if cs is not None:
cs.init(cs.OUT, value=1)
self.spi = spi
self.dc = dc
self.res = res
self.cs = cs
self.delay = delay
super().__init__(width, height, external_vcc, rotate)
def write_cmd(self, cmd):
if self.cs is not None:
self.cs(1)
self.dc(0)
self.cs(0)
self.spi.write(bytearray([cmd]))
self.cs(1)
else:
self.dc(0)
self.spi.write(bytearray([cmd]))
def write_data(self, buf):
if self.cs is not None:
self.cs(1)
self.dc(1)
self.cs(0)
self.spi.write(buf)
self.cs(1)
else:
self.dc(1)
self.spi.write(buf)
def reset(self):
super().reset(self.res)显示英文
from machine import Pin, I2C, ADC
from sh1106 import SH1106_I2C
import framebuf
WIDTH = 128 # oled display width
HEIGHT = 64 # oled display height
i2c = I2C(0, scl=Pin(21),sda=Pin(20),freq=400000)
# Display I2C config
oled = SH1106_I2C(WIDTH, HEIGHT, i2c) # Init oled display
oled.text('www.qingningz.cn',2,0)
oled.show()
显示中文
中文取模软件和方法也在这篇文章里
from machine import Pin, I2C, ADC
from sh1106 import SH1106_I2C
import framebuf
WIDTH = 128 # oled display width
HEIGHT = 64 # oled display height
i2c = I2C(0, scl=Pin(21),sda=Pin(20),freq=400000)
# Display I2C config
oled = SH1106_I2C(WIDTH, HEIGHT, i2c) # Init oled display
fontlib = {
'青':[0x01,0x00,0x01,0x00,0x7F,0xFC,0x01,0x00,0x3F,0xF8,0x01,0x00,0xFF,0xFE,0x00,0x00,
0x1F,0xF0,0x10,0x10,0x1F,0xF0,0x10,0x10,0x1F,0xF0,0x10,0x10,0x10,0x50,0x10,0x20
],
'柠':[0x20,0x40,0x20,0x20,0x20,0x20,0x23,0xFE,0xFA,0x02,0x24,0x04,0x20,0x00,0x70,0x00,
0x6B,0xFE,0xA0,0x20,0xA0,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0xA0,0x20,0x40,
],
'博':[0x20,0x50,0x20,0x48,0x2F,0xFE,0x20,0x40,0x27,0xFC,0xFC,0x44,0x27,0xFC,0x24,0x44,
0x27,0xFC,0x24,0x44,0x20,0x08,0x2F,0xFE,0x22,0x08,0x21,0x08,0x21,0x28,0x20,0x10,
],
'客':[0x02,0x00,0x01,0x00,0x7F,0xFE,0x40,0x02,0x88,0x04,0x0F,0xF0,0x10,0x20,0x2C,0x40,
0x03,0x80,0x1C,0x70,0xE0,0x0E,0x1F,0xF0,0x10,0x10,0x10,0x10,0x1F,0xF0,0x10,0x10,
],
}
def text_hz(hz, x, y):
zm = bytearray(fontlib[hz])
buf = framebuf.FrameBuffer(zm, 16, 16, framebuf.MONO_HLSB)
oled.blit(buf, x, y)
(x, y) = (5, 5)
for hz in "青柠博客":
text_hz(hz, x, y)
x += 16
oled.show()
中英文结合
from machine import Pin, I2C, ADC
from sh1106 import SH1106_I2C
import framebuf
WIDTH = 128 # oled display width
HEIGHT = 64 # oled display height
i2c = I2C(0, scl=Pin(21),sda=Pin(20),freq=400000)
# Display I2C config
oled = SH1106_I2C(WIDTH, HEIGHT, i2c) # Init oled display
fontlib = {
'青':[0x01,0x00,0x01,0x00,0x7F,0xFC,0x01,0x00,0x3F,0xF8,0x01,0x00,0xFF,0xFE,0x00,0x00,
0x1F,0xF0,0x10,0x10,0x1F,0xF0,0x10,0x10,0x1F,0xF0,0x10,0x10,0x10,0x50,0x10,0x20
],
'柠':[0x20,0x40,0x20,0x20,0x20,0x20,0x23,0xFE,0xFA,0x02,0x24,0x04,0x20,0x00,0x70,0x00,
0x6B,0xFE,0xA0,0x20,0xA0,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0xA0,0x20,0x40,
],
'博':[0x20,0x50,0x20,0x48,0x2F,0xFE,0x20,0x40,0x27,0xFC,0xFC,0x44,0x27,0xFC,0x24,0x44,
0x27,0xFC,0x24,0x44,0x20,0x08,0x2F,0xFE,0x22,0x08,0x21,0x08,0x21,0x28,0x20,0x10,
],
'客':[0x02,0x00,0x01,0x00,0x7F,0xFE,0x40,0x02,0x88,0x04,0x0F,0xF0,0x10,0x20,0x2C,0x40,
0x03,0x80,0x1C,0x70,0xE0,0x0E,0x1F,0xF0,0x10,0x10,0x10,0x10,0x1F,0xF0,0x10,0x10,
],
}
def text_hz(hz, x, y):
zm = bytearray(fontlib[hz])
buf = framebuf.FrameBuffer(zm, 16, 16, framebuf.MONO_HLSB)
oled.blit(buf, x, y)
(x, y) = (5, 5)
for hz in "青柠博客":
text_hz(hz, x, y)
x += 16
buffer = bytearray(b"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00|?\x00\x01\x86@\x80\x01\x01\x80\x80\x01\x11\x88\x80\x01\x05\xa0\x80\x00\x83\xc1\x00\x00C\xe3\x00\x00~\xfc\x00\x00L'\x00\x00\x9c\x11\x00\x00\xbf\xfd\x00\x00\xe1\x87\x00\x01\xc1\x83\x80\x02A\x82@\x02A\x82@\x02\xc1\xc2@\x02\xf6>\xc0\x01\xfc=\x80\x01\x18\x18\x80\x01\x88\x10\x80\x00\x8c!\x00\x00\x87\xf1\x00\x00\x7f\xf6\x00\x008\x1c\x00\x00\x0c \x00\x00\x03\xc0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00")
# Load the raspberry pi logo into the framebuffer (the image is 32x32)
fb = framebuf.FrameBuffer(buffer, 32, 32, framebuf.MONO_HLSB)
# Clear the oled display in case it has junk on it.
# Blit the image from the framebuffer to the oled display
oled.blit(fb, 96, 0)
oled.text('www.qingningz.cn',2,30)
oled.show()
© 版权声明
THE END
暂无评论内容