DFRobot
GM73 Barcode & QR Code Scanning Module
The GM73 is a high-performance barcode and QR code scanning module capable of reading common 1D and 2D codes from labels, paper, and screens in approximately...
The GM73 is a high-performance barcode and QR code scanning module capable of reading common 1D and 2D codes from labels, paper, and screens in approximately 1 second. It uses advanced smart image recognition and decoding algorithms for fast, accurate scanning.
With onboard Micro USB and UART (TTL-232) interfaces, the module is easy to embed into custom projects. Parameters can be configured by scanning setup codes, simplifying integration and reducing development time.
Key Features
- Smart Image Recognition – Advanced decoding algorithms for fast, accurate reads
- 1D & 2D Code Support – Reads barcodes, QR codes, Data Matrix, PDF417, and more
- Fast Capture – Approximately 1-second scan speed
- Dual Interface – Onboard Micro USB and UART (TTL-232)
- Compact Size – Just 30 × 24 × 7mm for easy embedding
Specifications
- Sensor: 640 × 480 CMOS
- Illumination: White LED
- Focus Indicator: Red LED
- 1D Codes: EAN, UPC, Code 39, Code 93, Code 128, UCC/EAN 128, Codabar, Interleaved 2 of 5, MSI-Plessey, GS1 Databar, Code 11, Industrial 25, Standard 25, Matrix 2 of 5
- 2D Codes: QR Code, Data Matrix, PDF417
- Reading Accuracy: ≥5mil
- Depth of Field: 30–150mm
- Scanning Angle: 360° intersection, ±55° elevation and deflection
- Interface: TTL-232, USB
- Operating Voltage: 5V DC
- Operating Current: ≤180mA
- Ambient Light: 0–10,000 lux
- Operating Temperature: −20°C to 50°C
- Dimensions: 30 × 24 × 7mm
Ideal For
- Self-service vending machines and kiosks
- Access control and gate systems
- Checkout counters and POS systems
- Inventory management and asset tracking
Package Contents
- 1× GM73 barcode & QR code scanning module
- 1× USB cable
- 1× TTL adapter
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- lux
- Lux is the standard unit for measuring how much light falls on a surface, similar to how a light meter reports brightness. A sensor that outputs lux gives readings that are easier to compare between rooms, outdoor conditions, and different projects.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
Supplier page — dfrobot.com
Supplier Description · 257.0 KB · Click any page to view full size
Related Tutorials
Free guides on learn.littlebird.com.au
