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Micro QR Code is a two-dimensional barcode based on the popular QR Code. By dropping two of the three position detection patterns of its predecessor, Micro QR Codes are able to be printed at a fraction of the size while still encoding a relatively substantial amount of data. Micro QR Codes have four versions corresponding to sizes and error correction levels, the maximum of which can encode up to 15 bytes, 21 alphanumeric or 35 numeric digits.

LEADTOOLS MicroQR Code SDK Technology

Sample Barcode:

• Uses Error Correction Code (ECC) to reconstruct damaged barcode symbols.
• Store up to 15 bytes, 21 alphanumeric or 35 numeric digits in one Micro QR Code.

Leadtools.Barcode support:

LEADTOOLS symbology identifier	BarcodeSymbology.MicroQR
Data class	MicroQRBarcodeData
Read options	MicroQRBarcodeReadOptions
Write options	MicroQRBarcodeWriteOptions

Information for Writing MicroQR Barcodes with LEADTOOLS

The Micro QR standard specifies 4 different sizes for the Micro QR barcode. The maximum data capacity varies, depending on the size of the barcode and its Error Correction level.

The following tables contain information for writing 2D Micro QR barcodes:

Model - Error Correction Level (MicroQRBarcodeSymbolModel)	Modules	Data Bits	Numeric	Alphanumeric	Binary	Kanji
M1	11x11	20	5	-	-	-
M2 - L	13x13	40	10	6	-	-
M2 - M	13x13	32	8	5	-	-
M3 - L	15x15	84	23	14	9	6
M3 - M	15x15	68	18	11	7	4
M4 - L	17x17	128	35	21	15	9
M4 - M	17x17	112	30	18	13	8
M4 - Q	17x17	80	21	13	9	5

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