还记得去年这个时候因为能在树莓派上成功驱动一块屏幕激动不已,今年这个时候已经终于能自己搞驱动了。
这次的屏幕是1.54寸的墨水屏,屏幕这块我推荐大家直接买微雪的,不是打广告,而是确实业界大哥有保障,我手里这块是1.5inch e-Paper V2。
拿到以后参考了一下技术手册和官网的arduino代码,就直接开搞,其实更准确地说算是抄作业,并不是完全从头自己写的,但是驱动这玩意看多了都大同小异,先把技术手册中给的图拿来

照着抄就完了
自己p了个手表的UI,然后取模放进去试了试,效果还挺好,当然我只是初步跑了一下,没有做成驱动库的模式,也还没有研究局部刷新,先能跑起来再说,大家可以参考一下。效果如下,墨水瓶确实精致而且断电也会保持原状态,就是刷新慢一点。

最后还尝试网github上传了一下,不过弄得一知半解的,居然没有找到一个特别好的git教程,能把源码git下来不难,问题是真正作为项目的参与者,开发者,上传合并之类的操作我就有点蒙了。
参考代码:
from machine import Pin,SoftSPI
import utime
busy_pin=Pin(17,Pin.IN)
res_pin=Pin(16,Pin.OUT)
dc_pin=Pin(15,Pin.OUT)
cs_pin=Pin(14,Pin.OUT)
sck_pin=Pin(13,Pin.OUT)
sdi_pin=Pin(12,Pin.OUT)
miso_pin=Pin(2,Pin.OUT)
epaper=SoftSPI(baudrate=10000000,sck=sck_pin, mosi=sdi_pin,miso=miso_pin)
# with open('MY_WATCH.pbm','rb') as f:
# f.readline()
# width,height=[int(v) for v in f.readline().split()]
# uidata=bytearray(f.read())
# #print(uidata[23])
# #print(width,height)
# f.close()
#
# print(len(uidata))
testdata=(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,
0X00,0X00,0X3F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XF7,0XFF,
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0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XF7,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
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0XFC,0X3F,0XBF,0XFF,0XDF,0XFF,0XFF,0XDF,0XFF,0XFF,0XFF,0XFF,0XFF,0XF7,0XFF,0XFF,
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0XFF,0XFC,0X1F,0XFF,0XFF,0XFF,0XFF,0XFF,0XF7,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
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0XBF,0XFF,0XFE,0XF7,0XFF,0X0F,0X80,0X00,0XFF,0XFF,0XFF,0X00,0X00,0X38,0X7F,0XFC,
0X3E,0X77,0XFE,0XE7,0XFF,0XFC,0X98,0XFF,0XFF,0XBF,0X80,0X06,0XF7,0XFF,0X07,0X07,
0XFF,0XFF,0XFF,0XFE,0X0F,0XFC,0X18,0X3F,0XFC,0X3E,0X73,0XFC,0XE7,0XFF,0XFE,0X01,
0XFF,0XFF,0XBF,0X80,0X06,0XF7,0XFF,0X07,0X07,0XFF,0XFF,0XFF,0XFE,0X0F,0XFC,0X18,
0X3F,0XFC,0X3F,0X3B,0XFD,0XCF,0XFF,0XFE,0X03,0XFF,0XFE,0X3F,0X80,0X06,0XF7,0XFF,
0X07,0X0F,0XFF,0XFF,0XFF,0XFE,0X0F,0XFC,0X18,0X3F,0XFC,0X3F,0X3F,0XBF,0XCF,0XFF,
0XFF,0X0F,0XFF,0XFE,0X3F,0X80,0X06,0XF7,0XFF,0X07,0X07,0XFF,0XFF,0XFF,0XFE,0X0F,
0XFC,0X18,0X3F,0XFC,0X3F,0XBF,0X9F,0XDF,0XFF,0XFF,0X0F,0XFF,0XFE,0X3F,0X80,0X06,
0XF7,0XFF,0X07,0X80,0X00,0XFE,0X00,0X1E,0X0F,0XFC,0X18,0X3F,0XFC,0X3F,0XFF,0X9F,
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作者分享了从树莓派驱动屏幕的兴奋到独立制作1.54寸墨水屏驱动的过程,推荐了微雪品牌的墨水屏并提供了基于MicroPython的驱动代码片段。通过自绘手表UI并实现初步显示,强调了墨水屏的持久显示特性与刷新速率问题。
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