DFRobot

GM77 Barcode and QR Code Scanning Module

Name: GM77 Barcode and QR Code Scanning Module
Brand: DFRobot
SKU: DF-SEN0512
Price: 97.45 AUD
Availability: InStock

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This scanning module reads barcodes or 2D codes with a scan speed of 15m/min. With small size and high-efficiency recognition, it is easy to be integrated in...

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This scanning module reads barcodes or 2D codes with a scan speed of 15m/min. With small size and high-efficiency recognition, it is easy to be integrated into various industrial equipment and applications.

The module is equipped with a 0.3megapixel camera and auxiliary lights, white light illumination, and red light focusing, which makes it able to effectively identify codes in low-light environments.

The module automatically senses and scans, identifies the surrounding environment. Once being auto-triggered, it quickly recognizes and reads code. The scanner also has TTL-232 and USB two communication interfaces for more actual scenarios.

It uses CMOS image recognition and core decoding algorithms to quickly recognize various barcodes and QR codes. Plug and play, no need to install drivers. The module is compatible with many mainstream operating systems such as Windows, Linux, Android, and Mac.

In addition to recognizing ordinary QR codes and barcodes, it can also recognize laser codes and other high-density code systems, which is applicable to various embedded environments such as mobile payment, access control, and self-service shopping.

Features

Small size

High-efficiency recognition

Automatically senses and scans

Applications

Mobile payment

Access control

Self-service shopping

Specification

Sensor: 640*480 CMOS

Illumination: White LED

Focus: Red LED

Support 1D code types: EAN, UPC, Code 39, Code 93, Code 128, UCC/EAN 128, Codabar, Interleaved 2 of 5, ITF-6, ITF-14, ISBN, ISSN, MSI-Plessey, GS1 Databar, Code 11, Industrial 25, Standard 25, Plessey, Matrix 2 of 5

Support 2D code types: QR Code, Micro QR, Data Matrix, PDF417, Mrico PDF417, Aztec

Reading Accuracy: ≥4mil

Reading Depth of Field: EAN-13: 50mm- 200mm (13mil); Code39: 40mm 90mm (5mil 10 bytes); QR Code: 25mm- 200mm (20mil 16 bytes); Data Marix: 50mm- 90mm (10mil 20 bytes) ); PDF 417: 30mm- 120mm (6. 67mil 7 bytes)

Scanning Angle: rotation angle 360°, elevation angle ±55°, deflection angle ±55°

Field of View: 47° (horizontal), 36° (vertical)

Contrast: ≥25%

Communication Interface: TTL-232, USB (HID-KBW, virtual serial port)

Size: 48.5*27.5*14mm/1.91*1.08*0.55 inch

Working Voltage: DC 5V

Working Current: 180mA

Standby Current: USB: 50mA; TTL: 10mA

Ambient Light: 0~100000lux

Working Temperature: -20°C~50°C

Storage Temperature: -40°C~70°C

Working Humidity: 5%~95% (non-condensing)

Shipping List

GM77 Barcode & QR Code Scanning Module x1

USB Adapter Cable x1

TTL Adapter Cable x1

Jargon buster

Plain-language definitions for the technical terms used above.

DC: DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
HID: Human Interface Device is a USB device class used for keyboards, mice, gamepads and similar controls. If a board supports HID over USB, it can act like an input device to a computer without needing a custom driver.
LED: A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.

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