micropython+esp32+1.3寸oled显示驱动sh1106.py

1.3寸oled 4针 sh1106驱动

本人萌新，在淘宝买了4针oled，使用之前0.92存的代码出现花屏的情况，然后根据商家介绍使用了sh1106进行驱动而不是ssd1315，且没有提供micropython相关驱动，因此在git找到相关代码，这里仅做分享，若有错误或版权问题请及时与我联系，原文链接：GitHub - robert-hh/SH1106：用于 SH1106 OLED 控制器的 MicroPython 驱动程序

原文I2C使用的是GPIO5和GPIO4，我将其改为了GPIO22和GPIO21

屏幕引脚	ESP32对应GPIO口
Vcc	3V
Gnd	Gnd
SCL	GPIO22
SDA	GPIO21

驱动文件 sh1106.py ：

#
# 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 22   - SCK / SCL
#   - D1 - GPIO 21   - 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 t