PCtoLCD图像取模oled绘制，主要还是自己懂

oled显示图像，网上有很多方案

无外乎取模--》绘制

这里重新整理一次

需求：要绘制一个48x48的方图在x,y

首先在PCtoLCD中取模

这里使用最形象的绘制过程：

从上到下 一行一行的绘制点，

所以需要一个二维数组代表这个图片

图像宽48个像素，取模的时候每8个像素用一个数字代表，那么每行就是6个数字，所以这里点阵为6，即每一行有6个数字

图像高48个像素，所以生成的数字应该有48个一维x数组

生成的模

[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],
[0x00,0x00,0x00,0x00,0x00,0x01],
[0x00,0x00,0x00,0x00,0x00,0x01],
[0x00,0x00,0x00,0x00,0x00,0x03],
[0x00,0x00,0x00,0x00,0x00,0x06],
[0x00,0x00,0x00,0x00,0x00,0x04],
[0x00,0x00,0x00,0x00,0x00,0x0C],
[0x00,0x00,0x00,0x00,0x00,0x18],
[0x00,0x00,0x00,0x00,0x00,0x30],
[0x00,0x00,0x00,0x00,0x00,0x60],
[0x00,0x00,0x00,0x00,0x00,0xC0],
[0x00,0x00,0x00,0x00,0x00,0x80],
[0x00,0x00,0x00,0x00,0x01,0x80],
[0x00,0x00,0x00,0x00,0x03,0x00],
[0x00,0x00,0x00,0x00,0x06,0x00],
[0x00,0x00,0x00,0x00,0x0C,0x00],
[0x00,0x00,0x00,0x00,0x18,0x00],
[0x00,0x00,0x00,0x00,0x30,0x00],
[0x00,0x00,0x00,0x00,0x60,0x00],
[0x00,0x00,0x00,0x00,0xC0,0x00],
[0x00,0x00,0x00,0x01,0x80,0x00],
[0x10,0x00,0x00,0x03,0x00,0x00],
[0x10,0x00,0x00,0x06,0x00,0x00],
[0x18,0x00,0x00,0x0C,0x00,0x00],
[0x08,0x00,0x00,0x18,0x00,0x00],
[0x0C,0x00,0x00,0x30,0x00,0x00],
[0x04,0x00,0x00,0xC0,0x00,0x00],
[0x06,0x00,0x01,0x80,0x00,0x00],
[0x02,0x00,0x03,0x00,0x00,0x00],
[0x03,0x00,0x0C,0x00,0x00,0x00],
[0x01,0x80,0x38,0x00,0x00,0x00],
[0x00,0xC0,0xE0,0x00,0x00,0x00],
[0x00,0x61,0x80,0x00,0x00,0x00],
[0x00,0x3E,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],
[0x00,0x00,0x00,0x00,0x00,0x00],

使用方法

from machine import Pin, I2C
from ssd1306 import SSD1306_I2C
import time

print("ssd")

display = None

def check():
    print('connect oled module to esp8266')
    global display
    while True:
        print('connecting')
        i2c = I2C(scl=Pin(5), sda=Pin(4))
        addr = i2c.scan()
        if len(addr):
            display = SSD1306_I2C(128, 64, i2c, addr=addr[0])
            print('connected')
            break
        time.sleep(1)
        

check()


x_axis=0
y_axis=0


byte_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],
[0x00,0x00,0x00,0x00,0x00,0x01],
[0x00,0x00,0x00,0x00,0x00,0x01],
[0x00,0x00,0x00,0x00,0x00,0x03],
[0x00,0x00,0x00,0x00,0x00,0x06],
[0x00,0x00,0x00,0x00,0x00,0x04],
[0x00,0x00,0x00,0x00,0x00,0x0C],
[0x00,0x00,0x00,0x00,0x00,0x18],
[0x00,0x00,0x00,0x00,0x00,0x30],
[0x00,0x00,0x00,0x00,0x00,0x60],
[0x00,0x00,0x00,0x00,0x00,0xC0],
[0x00,0x00,0x00,0x00,0x00,0x80],
[0x00,0x00,0x00,0x00,0x01,0x80],
[0x00,0x00,0x00,0x00,0x03,0x00],
[0x00,0x00,0x00,0x00,0x06,0x00],
[0x00,0x00,0x00,0x00,0x0C,0x00],
[0x00,0x00,0x00,0x00,0x18,0x00],
[0x00,0x00,0x00,0x00,0x30,0x00],
[0x00,0x00,0x00,0x00,0x60,0x00],
[0x00,0x00,0x00,0x00,0xC0,0x00],
[0x00,0x00,0x00,0x01,0x80,0x00],
[0x10,0x00,0x00,0x03,0x00,0x00],
[0x10,0x00,0x00,0x06,0x00,0x00],
[0x18,0x00,0x00,0x0C,0x00,0x00],
[0x08,0x00,0x00,0x18,0x00,0x00],
[0x0C,0x00,0x00,0x30,0x00,0x00],
[0x04,0x00,0x00,0xC0,0x00,0x00],
[0x06,0x00,0x01,0x80,0x00,0x00],
[0x02,0x00,0x03,0x00,0x00,0x00],
[0x03,0x00,0x0C,0x00,0x00,0x00],
[0x01,0x80,0x38,0x00,0x00,0x00],
[0x00,0xC0,0xE0,0x00,0x00,0x00],
[0x00,0x61,0x80,0x00,0x00,0x00],
[0x00,0x3E,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],
[0x00,0x00,0x00,0x00,0x00,0x00]
]

print('byte_data',len(byte_data))
#print(fonts[k], "offset=", offset_)
for y in range(len(byte_data)):
    line=''
    for x8 in range(len(byte_data[y])):
        
        # 进制转换、补全
        a_ = '{:0>8b}'.format(byte_data[y][x8])
        
        line=line+a_
        for x in range(0, 8):
            display.pixel( x+(x8*8), y , int(a_[x]))

    print('y',y,'line',line)

 可以很形象的看出绘制的来源

 

 之后可以优化为函数，也可以直接操作一维数组