GROW GM77 1D 2D Barcode Scanner Module USB UART Interface 640×480 CMOS

The GROW GM77 1D 2D Barcode Scanner Module is a compact, high-performance 1D/2D barcode scanner module featuring a 640×480 CMOS sensor. It supports USB and UART interfaces for seamless integration and offers efficient recognition of a wide range of barcode types including QR Code, Data Matrix, PDF417, Aztec, EAN, UPC, Code 39, and more.

With a high reading accuracy of 4mil and fast scan speed of 15m/min, it delivers reliable performance for various industrial and embedded applications such as retail, inventory tracking, mobile payment, and access control.

The module’s white LED illumination and red LED focusing enable effective barcode reading even in low-light conditions. It operates at DC 3.3-5V with low power consumption and offers broad compatibility with Windows, Linux, Android, and Mac systems.

Features:

• Dual communication interfaces: USB 2.0 and UART (TTL-232)
• High-resolution 640×480 CMOS image sensor for clear scanning
• Supports 1D and 2D barcodes including QR Code, Data Matrix, PDF417, Aztec, EAN, UPC, Code 39, Code 128, and more
• Accurate reading with minimum 4mil resolution
• Fast scanning speed up to 15 meters per minute
• White LED illumination and red LED collimation for enhanced low-light performance
• Compact size (approx. 21.6 x 12 x 13.2 mm) for easy integration into equipment
• Low operating voltage (3.3V to 5V) and low current consumption (180mA)
• Wide operating temperature range (-20℃ to +50℃) and humidity tolerance (5%-95%)
• Plug-and-play with no driver installation needed
• Compatible with a variety of operating systems

Specifications:

• Sensor: 640×480 CMOS
• Lighting: White LED
• Collimate: Red LED
• Interface: USB 2.0, UART (TTL-232, HID-KBW, Virtual serial port)
• Supported Code Types: QR Code, Data Matrix, PDF417, Aztec, Micro QR, EAN, UPC, Code 39, Code 128, Codabar, ISSN, ISBN, MSI-Plessey, GS1 Databar, etc.
• Reading Resolution: ≥4mil
• Depth of Field: EAN-13: 50-220mm (13mil), Code39: 40-90mm (5mil)
• Operating Voltage: DC 3.3V – 5V
• Operating Current: 180mA
• Standby Current: USB: 50mA; TTL: 10mA
• Operating Temperature: -20℃ to +50℃
• Storage Temperature: -40℃ to +70℃
• Operating Humidity: 5% to 95% (Non-condensing)
• Dimensions: 21.6 x 12 x 13.2 mm

Applications:

• Retail point-of-sale barcode scanning
• Inventory and warehouse management
• Mobile payment systems
• Access control and visitor management
• Embedded system integration
• Self-service kiosks and vending machines

Package Includes:

• 1 x GROW GM77 Barcode Scanner Module
• 1 x 15cm 4-Pin Serial Cable
• 1 x 1.5m USB Cable

Useful Link:

• GROW GM77 Barcode Scanner Module User Manual