adafruit_miniqr
¶
A non-hardware dependant miniature QR generator library. All native Python!
Author(s): ladyada
Implementation Notes¶
Hardware:
Any!
Software and Dependencies:
Python 3
- class adafruit_miniqr.QRBitBuffer¶
Storage class for a length of individual bits
- get(index)¶
The bit value at a location
- get_length_bits()¶
Size of bit buffer
- put(num, length)¶
Add a number of bits from a single integer value
- put_bit(bit)¶
Insert one bit at the end of the bit buffer
- class adafruit_miniqr.QRBitMatrix(width, height)¶
A bit-packed storage class for matrices
- class adafruit_miniqr.QRCode(*, qr_type=None, error_correct=1)¶
The generator class for QR code matrices
- add_data(data)¶
Add more data to the QR code, must be bytestring stype
- make(*, test=False, mask_pattern=0)¶
Perform the actual generation of the QR matrix. To keep things small and speedy we don’t generate all 8 mask patterns and pick the best. Instead, please pass in a desired mask_pattern, the default mask is 0.
- class adafruit_miniqr.QRPolynomial(num, shift)¶
Structure for creating and manipulating error code polynomials
- get(index)¶
The exponent at the index location
- get_length()¶
Length of the poly
- multiply(e)¶
Multiply two polynomials, returns a new one
- class adafruit_miniqr.QRUtil¶
A selection of bit manipulation tools for QR generation and BCH encoding
- static get_BCH_digit(data)¶
Count digits in data
- static get_BCH_type_info(data)¶
Encode with G15 BCH mask
- static get_BCH_type_number(data)¶
Encode with G18 BCH mask
- static get_error_correct_polynomial(ecc_length)¶
Generate a ecc polynomial
- static get_mask(mask, i, j)¶
Perform matching calculation on two vals for given pattern mask
- static get_pattern_position(qr_type)¶
The mask pattern position array for this QR type