Square bounces on the LEFT if NO SD card detected, otherwise it bounces on the RIGHT

MaixPy_SD_check.py

import image
import lcd
import sensor

import os
import time
from machine import SDCard

lcd.init(freq=15000000)

sensor.reset()                      # Reset and initialize the sensor. It will
sensor.set_pixformat(sensor.RGB565) # Set pixel format to RGB565 (or GRAYSCALE)
sensor.set_framesize(sensor.QVGA)   # Set frame size to QVGA (320x240)
sensor.skip_frames(time = 2000)     # Wait for settings take effect.


# mostra ["flash", "sd"] se disponivel
print(os.listdir("/"))

def sd_check():
    try:
        os.listdir("/sd/.")
    except Exception as e:
        return False
    return True

i = 0
dir = 1

img = sensor.snapshot()

while(True):
    img.clear()
    img.draw_rectangle(i, 50, 50, 50)
    lcd.display(img)

    SDCard.remount()
    time.sleep(2)

    if sd_check():
        if i == 270:
            i=250
        else:
            i=270
    else:
        if i == 0:
            i=20
        else:
            i=0