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def main(): from machine import Pin, I2C from ssd1306 import SSD1306_I2C from utime import sleep i2c=I2C(1,sda=Pin(2), scl=Pin(3), freq=400000) oled = SSD1306_I2C(128, 64, i2c) points = [\ (9,11),(10,11),(11,11), (12,12),\ (13,13),(13,14),(13,15),\ (14,16),\ (15,17),(16,17),(17,17),\ (18,16),\ (19,15),(19,14),(19,13),\ (20,12)] for snake in range(5): for p in points: oled.pixel(snake*(20-9)+p,p, 1) oled.show() sleep(.01) for snake in range(5): for p in points: oled.pixel(snake*(20-9)+p,p, 0) oled.show() sleep(.005) main()
if I unplug the pico and replug it in Windows shows this message: "USB device not recognized"
Device manager shows a device with the warning yellow triangle. Scanning devices, replugging the pico does not change the status.
Restarting the PC DOES fix it - Windows recognize the Pico again, and I was able to use Thonny to fix main.py so this no longer happen.
Interestingly, my Mac does NOT have this issue. Same Pico, same untouched main.py.
I suspect it has something to do with I2C being too busy to handle USB traffic.
Have you seen this behavior on your Pi Pico?