初始化连接到 Raspberry Pi Pico 的 ssd1306 OLED 时出错

Question

发生什么事了？

i2c.scan()

返回 [60]，因为它应该是：

from machine import Pin, I2C
import ssd1306

i2c = I2C(0, sda=Pin(0), scl=Pin(1), freq=400000)
oled=ssd1306.SSD1306_I2C(128, 64, i2c)

Traceback (most recent call last):
    File "<stdin>", line 6, in <module>
    File "/lib/ssd1306.py", line 110, in __init__
    File "/lib/ssd1306.py", line 36, in __init__
    File "/lib/ssd1306.py", line 73, in init_display
    File "/lib/ssd1306.py", line 101, in show
    File "/lib/ssd1306.py", line 119, in write_data
OSError: [Errno 5] EIO

Answer 1

使用 pico_ssd1306 驱动程序并运行以下代码：

from machine import Pin, I2C
from ssd1306 import SSD1306_I2C

i2c = I2C(0,sda=Pin(16),scl=Pin(17),freq=40000)
oled = SSD1306_I2C(128,64,i2c)

oled.fill(0)
oled.text("Hello",0,0)

Answer 2

请检查您的 OLED 是否支持 I2C 或 SPI？如果其SPI模式使用SSD1306_SPT。