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SSD1306 OLED 屏幕模塊配備 0.9 英寸迷你單色屏，128×32 分辨率，白光像素點(diǎn)。擁有極高的對(duì)比度，顯示清晰極易辨識(shí)。OLED 僅使用樹(shù)莓派的 I2C 和電源引腳，無(wú)需獨(dú)立供電，即插即用。

接線

屏幕模塊的 VCC 接樹(shù)莓派 Pico 的 3V3 引腳
屏幕模塊的 GND 接樹(shù)莓派 Pico 的 GND 引腳
屏幕模塊的 SDA 引腳接樹(shù)莓派 Pico 的 GP14 引腳
屏幕模塊的 SCL 引腳接樹(shù)莓派 Pico 的 SCL 引腳

代碼

這里使用開(kāi)源的MicroPython ssd1306 庫(kù)。將下面的代碼保存在 Pico 上，命名為 ssd1306.py。

# MicroPython SSD1306 OLED driver, I2C and SPI interfaces
 
from micropython import const
import framebuf
 
# register definitions
SET_CONTRAST = const(0x81)
SET_ENTIRE_ON = const(0xA4)
SET_NORM_INV = const(0xA6)
SET_DISP = const(0xAE)
SET_MEM_ADDR = const(0x20)
SET_COL_ADDR = const(0x21)
SET_PAGE_ADDR = const(0x22)
SET_DISP_START_LINE = const(0x40)
SET_SEG_REMAP = const(0xA0)
SET_MUX_RATIO = const(0xA8)
SET_IREF_SELECT = const(0xAD)
SET_COM_OUT_DIR = const(0xC0)
SET_DISP_OFFSET = const(0xD3)
SET_COM_PIN_CFG = const(0xDA)
SET_DISP_CLK_DIV = const(0xD5)
SET_PRECHARGE = const(0xD9)
SET_VCOM_DESEL = const(0xDB)
SET_CHARGE_PUMP = const(0x8D)
 
# Subclassing FrameBuffer provides support for graphics primitives
# http://docs.micropython.org/en/latest/pyboard/library/framebuf.html
class SSD1306(framebuf.FrameBuffer):
    def __init__(self, width, height, external_vcc):
        self.width = width
        self.height = height
        self.external_vcc = external_vcc
        self.pages = self.height // 8
        self.buffer = bytearray(self.pages * self.width)
        super().__init__(self.buffer, self.width, self.height, framebuf.MONO_VLSB)
        self.init_display()
 
    def init_display(self):
        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,
            self.height - 1,
            SET_COM_OUT_DIR | 0x08,  # scan from COM[N] to COM0
            SET_DISP_OFFSET,
            0x00,
            SET_COM_PIN_CFG,
            0x02 if self.width > 2 * self.height else 0x12,
            # timing and driving scheme
            SET_DISP_CLK_DIV,
            0x80,
            SET_PRECHARGE,
            0x22 if self.external_vcc else 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,
            0x10 if self.external_vcc else 0x14,
            SET_DISP | 0x01,  # display on
        ):  # on
            self.write_cmd(cmd)
        self.fill(0)
        self.show()
 
    def poweroff(self):
        self.write_cmd(SET_DISP)
 
    def poweron(self):
        self.write_cmd(SET_DISP | 0x01)
 
    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 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 = self.width - 1
        if self.width != 128:
            # narrow displays use centred columns
            col_offset = (128 - self.width) // 2
            x0 += col_offset
            x1 += col_offset
        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)
 
class SSD1306_I2C(SSD1306):
    def __init__(self, width, height, i2c, addr=0x3C, external_vcc=False):
        self.i2c = i2c
        self.addr = addr
        self.temp = bytearray(2)
        self.write_list = [b"x40", None]  # Co=0, D/C#=1
        super().__init__(width, height, external_vcc)
 
    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.write_list[1] = buf
        self.i2c.writevto(self.addr, self.write_list)
 
 
class SSD1306_SPI(SSD1306):
    def __init__(self, width, height, spi, dc, res, cs, external_vcc=False):
        self.rate = 10 * 1024 * 1024
        dc.init(dc.OUT, value=0)
        res.init(res.OUT, value=0)
        cs.init(cs.OUT, value=1)
        self.spi = spi
        self.dc = dc
        self.res = res
        self.cs = cs
        import time
 
        self.res(1)
        time.sleep_ms(1)
        self.res(0)
        time.sleep_ms(10)
        self.res(1)
        super().__init__(width, height, external_vcc)
 
    def write_cmd(self, cmd):
        self.spi.init(baudrate=self.rate, polarity=0, phase=0)
        self.cs(1)
        self.dc(0)
        self.cs(0)
        self.spi.write(bytearray([cmd]))
        self.cs(1)
 
    def write_data(self, buf):
        self.spi.init(baudrate=self.rate, polarity=0, phase=0)
        self.cs(1)
        self.dc(1)
        self.cs(0)
        self.spi.write(buf)
        self.cs(1)

該庫(kù)使用了 MicroPython 的framebuf 庫(kù)。關(guān)于 framebuf 庫(kù)的用法可以參考文檔，也可以通過(guò)這篇文章快速了解一下「MicroPython 幀緩沖區(qū)庫(kù) framebuf 的使用方法」。

下面是示例代碼，在屏幕上輸出指定的信息，將代碼保存在 Pico 上，命名為 main.py。

import machine
import ssd1306
 
i2c = machine.I2C(1, sda=machine.Pin(14), scl=machine.Pin(15), freq=400_000)
print("I2C device: " + str(i2c.scan()[0]))
oled = ssd1306.SSD1306_I2C(128, 64, i2c)
 
oled.text("PICO LAB", 0, 0)
oled.hline(0, 10, 128, 1)
oled.text("Hello World!", 0, 26)
oled.hline(0, 48, 128, 1)
oled.text("PICO.NXEZ.COM", 0, 52)
oled.show()

顯示效果如圖。

下面的示例代碼來(lái)畫(huà)一個(gè)樹(shù)莓派 Logo 并顯示在屏幕上。將代碼保存在 Pico 上，命名為 main.py。

import ssd1306
import framebuf
 
i2c = machine.I2C(1, sda=machine.Pin(14), scl=machine.Pin(15), freq=400_000)
oled = ssd1306.SSD1306_I2C(128, 64, i2c)
 
data = [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xF8,0x3E,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xE0,0x07,0x00,0x00,0x00,0x7F,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0x80,0x03,0x80,0x00,0x01,0xF7,0xC0,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,0x01,0xFF,0x80,0x01,0xF8,0x00,0x0F,0x90,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xFF,0xE0,0x01,0xFF,0x00,0x0E,0x00,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0x01,0xF8,0x01,0xFF,0xC0,0x3C,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x00,0xFF,0xFF,0xE1,0xE0,0x70,0x00,0x60,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,0x38,0x00,0xFF,0xFF,0xE0,0x70,0x70,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x70,0x00,0xFF,0xFF,0xF0,0x39,0xC0,0x00,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0x00,0xFF,0xDF,0xF0,0x1D,0xC0,0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0x01,0xFE,0x01,0xF8,0x0F,0x80,0x00,0x30,0x00,0x00,0x00,
        0x00,0x00,0x00,0x01,0xC0,0x01,0xF8,0x00,0x7C,0x0F,0x00,0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xC0,0x03,0xF8,0x00,0x3E,0x0F,0x00,0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xC0,0x07,0xF0,0x00,0x1F,0x06,0x00,0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xC0,0x0F,0xE0,0x00,0x1F,0x86,0x00,0x20,0x30,0x00,0x00,0x00,
        0x00,0x00,0x00,0x07,0xC0,0x3F,0xE0,0x00,0x0F,0x86,0x00,0x20,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0xC0,0x7F,0xE0,0x00,0x0F,0xC6,0x00,0x40,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0xFF,0xFF,0xE0,0x00,0x0F,0xF7,0x00,0xC0,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xFF,0xFF,0xE0,0x00,0x0F,0xFF,0x00,0x80,0x60,0x00,0x00,0x00,
        0x00,0x00,0x00,0x3F,0xFF,0xFF,0xF0,0x00,0x0F,0xFF,0x01,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x39,0xFF,0x80,0xF0,0x00,0x0F,0x9F,0x83,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x70,0xFE,0x00,0x78,0x00,0x0F,0x0F,0xC6,0x00,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0xFE,0x00,0x3C,0x00,0x0E,0x07,0xFC,0x00,0xC0,0x00,0x00,0x00,
        0x00,0x00,0x00,0xE0,0x7C,0x00,0x1E,0x00,0x1E,0x03,0xFC,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x78,0x00,0x1F,0x00,0x3C,0x03,0xFC,0x03,0x80,0x00,0x00,0x00,0x00,0x00,0x01,0xC0,0x78,0x00,0x0F,0xE0,0xFC,0x03,0xFE,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xC0,0x78,0x00,0x0F,0xFF,0xFC,0x01,0xFF,0xFC,0x00,0x00,0x00,0x00,
        0x00,0x00,0x01,0xC0,0x78,0x00,0x0F,0xFF,0xFC,0x01,0xFF,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xC0,0x78,0x00,0x0F,0xFF,0xFC,0x03,0xFF,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xC0,0x78,0x00,0x0F,0xFF,0xFC,0x03,0xFF,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x78,0x00,0x0F,0xE0,0xFC,0x03,0xFE,0x07,0x00,0x00,0x00,0x00,
        0x00,0x00,0x00,0xC0,0x78,0x00,0x0F,0x00,0x3C,0x03,0xFC,0x03,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0x7C,0x00,0x1E,0x00,0x1E,0x07,0xF8,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x70,0x7E,0x00,0x3C,0x00,0x0E,0x07,0xFC,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x70,0xFE,0x00,0x38,0x00,0x0F,0x0F,0xC6,0x00,0xE0,0x00,0x00,0x00,
        0x00,0x00,0x00,0x38,0xFF,0x80,0xF8,0x00,0x07,0x9F,0x83,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xFF,0xE3,0xF0,0x00,0x07,0xFF,0x01,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0xFF,0xFF,0xF0,0x00,0x07,0xF7,0x00,0x80,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0xE0,0xFF,0xF0,0x00,0x07,0xE7,0x00,0xC0,0x30,0x00,0x00,0x00,
        0x00,0x00,0x00,0x07,0xC0,0x3F,0xF0,0x00,0x0F,0x86,0x00,0x40,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xC0,0x0F,0xF0,0x00,0x0F,0x86,0x00,0x20,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xC0,0x07,0xF0,0x00,0x1F,0x0E,0x00,0x20,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xC0,0x03,0xF0,0x00,0x3E,0x0E,0x00,0x10,0x30,0x00,0x00,0x00,
        0x00,0x00,0x00,0x01,0xC0,0x01,0xF8,0x00,0x7C,0x4F,0x00,0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x00,0xFC,0x00,0xF8,0x1F,0x00,0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0x00,0xFF,0x03,0xF8,0x1D,0x80,0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0x00,0x7F,0xFF,0xF0,0x39,0xC0,0x00,0x30,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,0x70,0x00,0x7F,0xFF,0xE0,0xF1,0xC0,0x00,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x38,0x00,0x7F,0xFF,0xE1,0xE0,0x70,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1C,0x00,0x7F,0x00,0xFF,0xC0,0x70,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0x01,0xF0,0x00,0xFF,0x00,0x3C,0x00,0x60,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,0x07,0xFF,0xC0,0x01,0xF8,0x00,0x0E,0x00,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xFF,0x80,0x03,0xC0,0x00,0x07,0x90,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0xE0,0x07,0x80,0x00,0x01,0xF7,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xF8,0x1F,0x00,0x00,0x00,0x7F,0xC0,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0xFC,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]
 
buf = framebuf.FrameBuffer(bytearray(data), 128, 64, framebuf.MONO_HLSB)
oled.blit(buf, 0, 0)
oled.show()

運(yùn)行效果如圖。

審核編輯：湯梓紅

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原文標(biāo)題：樹(shù)莓派 Pico 上使用 SSD1306 OLED 屏幕

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發(fā)表于 12-07 12:33

SSD1306芯片介紹

一、基礎(chǔ)認(rèn)識(shí)及引腳介紹屏幕參數(shù)：尺寸：0.96英寸分辨率：128*64驅(qū)動(dòng)芯片：SSD1306驅(qū)動(dòng)接口協(xié)議：SPI引腳說(shuō)明：二、SSD1306芯片介紹SSD1306是一款帶控制器的用于

發(fā)表于 01-25 06:24

OLED的SSD1306軟件包上電瞬間出現(xiàn)花屏如何解決

OLED的SSD1306軟件包，初始化順序有誤，上電瞬間顯存的數(shù)據(jù)是隨機(jī)的，所以會(huì)出現(xiàn)花屏，需要在OLED打開(kāi)之前做一次顯存清除操作，如下所示PS：github太卡用不了，gitee只

發(fā)表于 08-09 10:06

【BPI-Pico-RP2040 開(kāi)發(fā)板】SSD1306 OLED顯示

本文主要使用BPI-Pico-RP2040開(kāi)發(fā)板驅(qū)動(dòng)SSD1306 OLED模塊。一、硬件（一）BPI-Pico-RP2040 開(kāi)發(fā)板BPI-Pic

發(fā)表于 03-26 22:52

SSD1306數(shù)據(jù)表

128*64 OLED的驅(qū)動(dòng)芯片SSD1306的數(shù)據(jù)手冊(cè)0.96oled一般用ssd1306驅(qū)動(dòng),ssd1306的指令豐富,但是在平常顯示使

發(fā)表于 09-27 07:59

ssd1306 OLED花屏怎么解決？

ssd1306用spi連接arduino，幾率花屏，但是在樹(shù)莓派上用就沒(méi)問(wèn)題，請(qǐng)問(wèn)各位大佬有什么好的建議嗎

發(fā)表于 10-19 08:26

內(nèi)部SSD1306驅(qū)動(dòng)芯片手冊(cè)

OLED顯示屏控制芯片SSD1306，它的驅(qū)動(dòng)芯片手冊(cè)

發(fā)表于 11-26 15:10 ?894次下載

基于SSD1306的OLED開(kāi)發(fā)模塊

基于SSD1306的OLED開(kāi)發(fā)模塊，包含SSD1306-Revision-1.1.pdf和SSD1306命令.doc

發(fā)表于 02-24 14:03 ?98次下載

SSD1306(OLED驅(qū)動(dòng)芯片介紹)

SSD1306(OLED驅(qū)動(dòng)芯片介紹)在介紹0.96寸 SSD1306之前先附上模塊鏈接：點(diǎn)擊購(gòu)買(mǎi)SSD1306 OLED顯示模塊概述

發(fā)表于 11-09 18:36 ?64次下載

SSD1306 OLED上的ESP8266 NTP時(shí)鐘

電子發(fā)燒友網(wǎng)站提供《SSD1306 OLED上的ESP8266 NTP時(shí)鐘.zip》資料免費(fèi)下載

發(fā)表于 11-09 11:28 ?0次下載

基于樹(shù)莓派的SSD1306 OLED視頻播放器

該項(xiàng)目使用 Raspberry Pi 在 Python 上運(yùn)行 OpenCV 以在 SSD1306 OLED 顯示器上播放視頻/電影。

發(fā)表于 12-08 09:43 ?2次下載

SSD1306 OLED顯示屏上的Arduino Flash文本

電子發(fā)燒友網(wǎng)站提供《SSD1306 OLED顯示屏上的Arduino Flash文本.zip》資料免費(fèi)下載

發(fā)表于 01-31 10:12 ?1次下載

Arduino在SSD1306 OLED顯示屏上隨機(jī)移動(dòng)文本

電子發(fā)燒友網(wǎng)站提供《Arduino在SSD1306 OLED顯示屏上隨機(jī)移動(dòng)文本.zip》資料免費(fèi)下載

發(fā)表于 06-09 10:09 ?0次下載

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SSD1306 OLED驅(qū)動(dòng)芯片概述

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【BPI-Pico-RP2040 開(kāi)發(fā)板】SSD1306 OLED顯示

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ssd1306 OLED花屏怎么解決？

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Arduino在SSD1306 OLED顯示屏上隨機(jī)移動(dòng)文本