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Grow GM77 Barcode Scanner Module - USB 2.0 & UART Interface

₹3,529.00 (Inclusive of all taxes)
Out of Stock

The Grow GM77 is a compact, high-resolution barcode scanner module featuring a 640×480 CMOS sensor for reading 1D and 2D codes down to 4 mil. It integrates seamlessly into embedded systems, POS terminals, and industrial automation via its USB 2.0 and UART interfaces, operating on a standard 5V DC supply.

Features

  • High-resolution 640×480 CMOS sensor for precise 1D/2D barcode reading.
  • Dual-interface support with USB 2.0 and UART for flexible system integration.
  • Compact form factor (48.5 x 27.5 x 14 mm) suitable for space-constrained designs.
  • Wide reading distance range from 25 mm to 200 mm.
  • Low operating current of 180 mA for efficient power consumption.

Out of stock

Description

The Grow GM77 Barcode Scanner utilizes a high-performance CMOS imaging engine to capture and decode a wide array of 1D and 2D symbologies, including EAN, UPC, Code 39, and QR codes. Its 4 mil resolution ensures reliable reading of high-density and damaged barcodes, making it suitable for demanding industrial and commercial applications.

Designed for embedded integration, the module provides stable data output through its selectable USB 2.0 or asynchronous serial (UART) interfaces. The 5V DC operation and low power draw make it compatible with a broad range of microcontroller platforms, single-board computers, and industrial PLCs, facilitating deployment in retail POS, inventory management, and automated logistics systems.

Key Features

  • High-Definition CMOS Sensor: 640 x 480 pixel array ensures accurate capture of fine barcode details.
  • Dual Communication Protocol: Switchable between plug-and-play USB HID and configurable TTL-level UART serial.
  • Optimized Optical Engine: Reading distance from 25 mm to 200 mm with a wide field of view.
  • Broad Symbology Support: Decodes all major 1D linear and 2D Matrix barcodes for universal application.
  • Compact and Durable Housing: Small footprint and robust construction for integration into fixed or handheld devices.
  • Low-Power Operation: 5V @ 180mA consumption enables use in battery-powered or energy-sensitive setups.

Applications

  • Retail Point-of-Sale (POS) Systems: Integrated scanning for fast product checkout and inventory lookup.
  • Industrial Automation & Logistics: Automated identification and tracking of items on conveyor belts or in kitting stations.
  • Embedded Kiosks & Vending Machines: User interaction via QR code scanning for payments or information access.
  • Library and Asset Management: Efficient cataloging and check-in/out of books, tools, or equipment.
  • Mobile Data Collection Devices: Core scanning module for handheld terminals used in field service and warehouse operations.

Technical Specifications

Manufacturer / BrandGrow
ModelGM77
Sensor Type640x480 CMOS Image Sensor
Supported Barcodes1D & 2D (EAN, UPC, Code 39, QR Code, etc.)
Minimum Resolution4 mil
Reading Distance25 mm to 200 mm
InterfacesUSB 2.0, UART (TTL)
Operating Voltage5 V DC
Operating Current180 mA
Dimensions (W x D x H)48.5 mm x 27.5 mm x 14 mm
DPM (Direct Part Mark) SupportNo
Primary ApplicationsEmbedded Systems, POS, Industrial Automation

Frequently Asked Questions

What are the pinout and wiring details for the GM77's UART interface?

The GM77 uses a standard 4-pin connector for its TTL-level UART interface. The pins typically correspond to VCC (5V), GND, TX (transmit), and RX (receive). You must connect the module's TX pin to your microcontroller's RX pin and vice-versa. Ensure a common ground and provide a stable 5V power supply. The baud rate and other serial parameters are usually configurable via command codes sent over the interface.

Can the GM77 scanner read QR codes and other 2D barcodes?

Yes, the GM77 is equipped with a 2D imaging sensor capable of reading both 1D linear barcodes (like Code 39, EAN-13) and 2D Matrix codes (including QR Code, Data Matrix, and PDF417). Its 4 mil resolution allows it to reliably decode high-density and small-sized 2D symbols within its specified 25mm to 200mm working range.

What is the power requirement for the GM77 module, and can it be powered via USB?

The GM77 requires a 5V DC power supply and draws approximately 180 mA during operation. It can be powered directly through its USB 2.0 interface connection, which supplies both power and data. When using the UART interface, you must provide a separate 5V source to the module's VCC pin, ensuring your power supply can deliver the necessary current.

Package Includes

  • 1 x Grow GM77 Barcode Scanner Module
  • 1 x 15 cm 4-Pin Serial Cable (UART)
  • 1 x 1.5 m USB Cable

Additional Information

Weight 0.025 kg
Dimensions 2.75 × 4.85 × 1.4 cm