ATOM QR-CODE_v1.1(Excluding Atom)



ATOM QR-CODE_v1.1 is a M5Atom Base for reading Barcode/QR-codes. It supports 6 kinds of 2D codes and 19 kinds of 1D codes. It has built-in lighting LED, which can easily identify codes even in a dark environment. The green LED is convenient for focusing and aiming. The effective recognition accuracy of high-resolution CMOS imaging reaches 5mil. In addition, it has a variety of reading modes, which can be adjusted to automatic continuous trigger or manual trigger as required. The module has its own buzzer, which has different prompt sound effects in different states. The module also supports adding custom prefix/suffix to the data, defining multi-national keyboard, data editing and many other functions, it uses TTL for communication, and can easily use serial port for data transmission. It can be easily used in Arduino or UIFlow programming,You can send the scanned data to the receiver for processing via wired or wireless connection through M5Atom Controller.

SKU A133 is available for purchase without the ATOM Lite
Code scanning precautions
If you want to Enable special code category scanning, scan the corresponding QR code in the manual to enable the QR code


  • Compatible with Atom Matrix/Atom Lite/Atom S3/AtomS3 Lite
  • Built in lighting and focus LED
  • UART/TTL communication
  • Manual and automatic scanning mode
  • Light and sound reminders
  • Multiple output formats
  • Data can be pre-edited and hidden
  • Rich custom instructions
  • Support RAW / GBK / Unicode
  • Support Arduino/UIFlow




  • Cash register scanning
  • Barcode/QR-code input device
  • Warehouse inventory


Resources Parameters
Read QR code type QR Code,Micro QR, Data Matrix, PDF417,Micro PDF417,Aztec
Read Barcode type 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
Recognition reading accuracy ≥5mil
Reading range EAN-13: 50-200mm(13mil), Code39: 40-90mm(5mil 10bytes), QR Code: 25-240mm(20mil 16bytes), Data Matrix: 50-90mm(10mil 20bytes), PDF 417: 30-130mm(6.67mil 7bytes)
Contrast ratio ≥25%
Scanning angle Rotate 360°, Pitch ±55°, Yaw ±55°
FOV Horizontal 34°,Vertical 28°
Communication interface UART/TTL
Voltage and Current DC 3.3V/170mA,Standby 10mA
Case material Plastic ( PC )
Product Size 48mm × 24mm × 18mm
Package Size 136mm × 92mm × 13mm
Product Weight 12g
Package Weight 25g





UIFlow Blocks

  • Init QRCode
  • Get read
  • Get status
  • Trigger ( ON / OFF )


  • Scan Different Code

Version Change

Release Date Product Changes Notes
------- First Release /
2023.7 Not paired with Controller ATOM Lite, Optimize the circuit /