QR Code Scanner Unit (STM32F030)


Regular price $18.50

10+ In Stock

Shipping calculated at checkout.


QRCode Unit is an integrated one-dimensional/two-dimensional code scanning unit that combines a CMOS QR code capture engine with a resolution of 640x480 and a bus conversion MCU (STM32F030). It features a device-side toggle switch that allows for switching between I2C and UART communication interfaces.

The capture engine supports three types of mainstream QR codes and eight types of one-dimensional codes found in the market. It also provides a firmware upgrade interface. The unit includes a scan trigger button, a built-in buzzer, and supplementary LED lights. The buzzer and green LED provide audio and visual cues in different states, assisting with focusing and aiming.

The QRCode Unit can be configured through programming to operate in automatic continuous trigger or manual trigger mode. It is suitable for various fields such as logistics, retail, and manufacturing where barcode scanning is required.

To switch to UART serial communication mode, ensure the device is powered off, toggle the mode switch to the UART serial position. Then, press and hold the TRIG button for 2 seconds while powering on until the device completes startup to successfully switch to UART serial communication mode. If you have any questions, feel free to contact technical support.


  • STM32F030F4P6@32 bit ARM Cortex-M0 processor
  • Supports 3 types of two-dimensional code and 8 types of one-dimensional code
  • Upgradable firmware
  • Built-in I2C and UART communication interface switch
  • Built-in buzzer sound prompts
  • Built-in lighting LED
  • High resolution imaging
  • Focusing and aiming functions


  • 1x QRCode Unit
  • 1x HY2.0-4P Cable (20cm)

The refracting head scan head can be installed to change the scanning Angle, as shown in the picture above.


  • Material Flow
  • Retail
  • Manufacture


Resources Parameters
MCU STM32F030F4P6@32 bit ARM Cortex-M0 processor
Sensor 640x480 CMOS
Illumination White LED
Focusing and aiming Green led
Read the type of QR code PDF417,QR Code,Data Matrix
Read one-dimensional code types Code39, Code93,Code 128,EAN-13,EAN-8,UPC-A, UPC-E,Interleaved 2 of 5
Recognition reading accuracy ≥5mil
Print contrast ≥ 20%
Scanning angle Elevation ±55°, declination ±55° (plus refractor lens, can change the scanning Angle)
Communication Interface I2c serial communication(0x21)
Shell Material Plastic ( PC )
Product Size 65.8*18.4*15.8mm
Package Size 136*92*16mm
Product Weight 14g
Package Weight 19.4g


  • Customer Reviews

    Based on 1 review
    Damien Declercq
    Missing compatibility with UIFlow 2.0

    Ordered the QR code scanner and was expecting that it would be compatible with the AS3L and UIFlow 2.0.
    A shame you do not have the latest controllers and units / modules compatible with UIFlow 2.0

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