You've already forked MicroPythonOS
mirror of
https://github.com/m5stack/MicroPythonOS.git
synced 2026-05-20 11:51:27 -07:00
Thomas Farstrike
40 lines
1.1 KiB
Python
40 lines
1.1 KiB
Python
import qrdecode
|
|
import random
|
|
|
|
# Create a 240x240 byte buffer
|
|
buffer = bytearray(240 * 240)
|
|
|
|
# Fill buffer with random bytes
|
|
|
|
# Image dimensions
|
|
width = 240
|
|
height = 240
|
|
buffer_size = width * height # 240 * 240 = 57600 bytes
|
|
try:
|
|
# Allocate buffer for grayscale image
|
|
buffer = bytearray(buffer_size)
|
|
#for i in range(240 * 240):
|
|
# buffer[i] = random.getrandbits(8)
|
|
# Read the raw grayscale image file
|
|
with open('qrcode2.raw', 'rb') as f:
|
|
bytes_read = f.readinto(buffer)
|
|
if bytes_read != buffer_size:
|
|
raise ValueError("File size does not match expected 240x240 grayscale image")
|
|
# Decode QR code using qrdecode module
|
|
print("decoding...")
|
|
print(f"buffer length: {len(buffer)}")
|
|
for i in range(15):
|
|
print(buffer[i])
|
|
result = qrdecode.qrdecode(buffer, width, height)
|
|
print(f"result: {result}")
|
|
# Remove BOM (\ufeff) from the start of the decoded string, if present
|
|
#if result.startswith('\ufeff'):
|
|
# result = result[1:]
|
|
print(f"result: {result}")
|
|
except OSError as e:
|
|
print("Error reading file:", e)
|
|
raise
|
|
except ValueError as e:
|
|
print("Error:", e)
|
|
raise
|