Under the wave of Internet of Things and industrial intelligence, barcode scanning technology has become the core link of data collection. The GM65 embedded barcode/QR code scanning module has become the preferred hardware in logistics, retail, industrial automation and other fields due to its high performance and flexibility. This article deeply analyzes its technical characteristics, typical applications, and configuration points, providing practical references for developers and enterprises.
1、 Core technical characteristics and parameter analysis
1. Multi scenario adaptability
GM65 adopts CMOS image scanning technology, supporting omnidirectional recognition of one-dimensional barcodes (Code 128, Code 39, etc.) and two-dimensional codes (QR Code, Data Matrix, etc.), covering paper labels and electronic screen display barcodes. Its outstanding adaptability to the environment:
-Light adaptability: It can still work stably in strong light environments ranging from 0 to 86000 lux, meeting the needs of outdoor or high brightness scenes.
-Angle fault tolerance: Supports scanning with 360 ° rotation and ± 65 ° tilt, reducing manual angle adjustment time.
2. High efficiency and low-power design
-Scanning accuracy: resolution up to 0.1mm (4mil), capable of recognizing small barcodes.
-Energy efficiency optimization: The scanning current is 120mA, and the standby current is only 30mA, suitable for long-term operation of mobile devices.
-Interface compatibility: Supports USB (drive free) and UART interfaces, making it easy to integrate quickly with PCs and embedded systems.
3. Configurability and Scalability
Users can adjust module parameters by scanning the configuration QR code, for example:
-Work mode switching: button triggered (suitable for on-demand scanning) or automatic continuous scanning (suitable for pipeline).
-Communication parameter adjustment: baud rate (default 9600bps), data format (prefix/suffix can be added), etc.
-Function customization: Supports turning off prompt sounds, adjusting lighting brightness, and meeting the requirements of silent environments.
2、 Industry application cases and value
1. Logistics sorting and warehousing management
At the express sorting center, GM65 can quickly identify the package QR code and update the logistics status in real-time. Its omnidirectional scanning capability reduces the time required for manual angle adjustment, and combined with sorting robots, it can achieve efficient operations of processing thousands of packages per hour.
2. Intelligent retail and self-service
-Self checkout system: integrated into self-service terminals, automatically generates orders after scanning product barcodes, improving shopping efficiency.
-Member management: By scanning the member's QR code, points can be redeemed or identity verification can be achieved. A certain unmanned supermarket project has implemented a closed-loop system of "scanning code to open cabinets - automatic deduction of fees" through GM65.
3. Industrial automation and intelligent manufacturing
In intelligent material handling robots, GM65 is used to read material QR codes and combine color sensors (such as TCS3200) to achieve classified handling. Its response time is less than 1 second, ensuring continuous operation of the production line.
4. Interaction between IoT devices
As an IoT node, GM65 can upload data to the cloud through protocols such as MQTT. For example, intelligent access control systems enhance security by scanning dynamic QR codes to verify identity.
3、 Development Configuration Practice Guide
1. Hardware connection and initialization
-Interface selection: It is recommended to use UART interface to connect embedded systems (such as STM32), ensuring that TXD/RXD are cross connected and ground processed together.
-Power management: 5V power supply requires the addition of filtering capacitors to avoid voltage fluctuations affecting scanning stability.
2. Parameter configuration method
-Mode switching: Scan the "serial port output" or "USB virtual serial port" QR code to switch communication modes, accompanied by a prompt sound when successful.
-Command control: Adjust the function through hexadecimal commands, such as sending 0x7E 0x00 0x08... to set the lighting to be on or off mode.
3. Data reception and processing
-Data format: The scan result is output in string form, ending with a carriage return (0x0D) by default, and data can be captured through serial port interrupts.
-Exception handling: Set timeout detection (such as 5 seconds) to prevent system blocking caused by no response.
The GM65 scanning module has become a key component in the development of smart devices due to its high cost-effectiveness and ease of use. Whether it is the precise and efficient sorting of logistics or the unmanned transformation of retail scenes, its technological characteristics have demonstrated wide adaptability. Developers can unlock more innovative industry applications through flexible configuration and secondary development. For more information, please contact Hangzhou GROW Technology Co., Ltd. Hangzhou GROW Technology Co., Ltd. is a high-tech enterprise specializing in the design, research and development, production, and sales of fingerprint modules and scanning modules. With a skilled and experienced development team, we aim to become a supplier of excellent intelligent image recognition product technology and solutions.
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