【得捷电子Follow me第1期】任务2：驱动外设

dql2016

【得捷电子Follow me第1期】任务2：驱动外设 [复制链接]

 

驱动LED、OLED显示屏、蜂鸣器等外设。
搭配器件：Raspberry Pi Pico w开发板、GROVE SHIELD、GROVE OLED扩展板、GROVE BUZZER扩展板

参考

https://projects.raspberrypi.org/en/projects/sound-machine/2

安装picozero库

点击工具栏->管理包

搜索框输入 ‘picozero’ ，然后安装picozero，安装好效果如下：多了lib目录，picozero驱动库在lib目录里面

驱动LED

from picozero import pico_led
from time import sleep

pico_led.on()
sleep(1)
pico_led.off()

 

驱动蜂鸣器

from picozero import Speaker
speaker = Speaker(20)#连接蜂鸣器到GP20
speaker.play('c4', 0.5)#播放'c4'时长0.5秒

 

驱动OLED

在包管理器搜索驱动ssd1306

选择安装micropython-ssd1306，安装完毕,在lib目录可以看到ssd1306.py了

oled驱动基本使用：

from machine import Pin,I2C
from ssd1306 import SSD1306_I2C

i2c=machine.I2C(1, sda=machine.Pin("GP6"), scl=machine.Pin("GP7"), freq=400000)
display = SSD1306_I2C(128, 64, i2c)

display.fill(0)
display.show()
display.text("hello eeworld",5,10)
display.show()

display.poweroff()     # power off the display, pixels persist in memory
display.poweron()      # power on the display, pixels redrawn
display.contrast(0)    # dim
display.contrast(255)  # bright
display.invert(1)      # display inverted
display.invert(0)      # display normal
display.show()         # write the contents of the FrameBuffer to display memory

display.fill(0)                         # fill entire screen with colour=0
display.pixel(0, 10)                    # get pixel at x=0, y=10
display.pixel(0, 10, 1)                 # set pixel at x=0, y=10 to colour=1
display.hline(0, 8, 4, 1)               # draw horizontal line x=0, y=8, width=4, colour=1
display.vline(0, 8, 4, 1)               # draw vertical line x=0, y=8, height=4, colour=1
display.line(0, 0, 127, 63, 1)          # draw a line from 0,0 to 127,63
display.rect(10, 10, 107, 43, 1)        # draw a rectangle outline 10,10 to 117,53, colour=1
display.fill_rect(10, 10, 107, 43, 1)   # draw a solid rectangle 10,10 to 117,53, colour=1
display.text('Hello World', 0, 0, 1)    # draw some text at x=0, y=0, colour=1
display.scroll(20, 0)                   # scroll 20 pixels to the right

# draw another FrameBuffer on top of the current one at the given coordinates
import framebuf
fbuf = framebuf.FrameBuffer(bytearray(8 * 8 * 1), 8, 8, framebuf.MONO_VLSB)
fbuf.line(0, 0, 7, 7, 1)
display.blit(fbuf, 10, 10, 0)           # draw on top at x=10, y=10, key=0
display.show()

display.fill(0)
display.fill_rect(0, 0, 32, 32, 1)
display.fill_rect(2, 2, 28, 28, 0)
display.vline(9, 8, 22, 1)
display.vline(16, 2, 22, 1)
display.vline(23, 8, 22, 1)
display.fill_rect(26, 24, 2, 4, 1)
display.text('MicroPython', 40, 0, 1)
display.text('SSD1306', 40, 12, 1)
display.text('OLED 128x64', 40, 24, 1)
display.show()

#raspberry logo 
buffer = bytearray(b'\x00\x00\x00\x00\x00\x00\xf0\xf8\x18XX\xd8\x980\xf0\xe0\xf0\x98\x98\xd8X\x18\x18\xf0\xf0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\xf3\xff\xee\xec|?o\xe7\xe7\xef?<|\xec\xde\xfb\xe3\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0e\x7f\xf8??8\xf0\xf8\x18\x0f\x0f\x0e\x98\xf8x8\x1f\xfc\xf1?\x0e\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x03\x06\x0e\x0e\x1f?323\x1f\x0f\x0e\x06\x06\x03\x00\x00\x00\x00\x00\x00\x00')
fb = framebuf.FrameBuffer(buffer, 30, 32, framebuf.MVLSB)
display.blit(fb, 10, 10)
display.show()
   

效果

 

 

Jacktang

oled驱动是关键步骤

damiaa

楼主还专门画了个底板？