Description The M5Stack Atomic QRCode2 Base is a compact barcode QR code scanner base for ATOM series hosts and embedded data-capture projects. SKU M5-A133-B is designed as a small 1D 2D barcode scanner and UART scanner module for inventory scanning, retail scanning, logistics labels, kiosk verification, manufacturing traceability, and portable automation tools. This M5Stack Atomic QRCode2 Base integrates a 640 x 480 CMOS@M14 scan module, white illumination LED, red focus and aiming LED, and buzzer feedback inside a compact PC housing. The scanner reads PDF417, QR Code, Data Matrix, and common 1D barcode formats, so one barcode QR code scanner can handle QR code scanning, 2D code scanning, and standard barcode scanning workflows. The UART scanner module communicates through UART@115200, making the M5Stack Atomic QRCode2 Base straightforward to integrate with ATOM hosts and other embedded controllers. Rear magnets, M3 screw holes, and LEGO-compatible mounting holes make the 1D 2D barcode scanner easy to install in fixtures, handheld scanners, smart cabinets, access-control kiosks, and warehouse scanning prototypes. Features M5Stack Atomic QRCode2 Base: compact ATOM base barcode QR code scanner for embedded scanning and data collection. 1D 2D barcode scanner: supports PDF417, QR Code, Data Matrix, and 14 common 1D barcode formats. UART scanner module: UART@115200 interface keeps integration simple with ATOM hosts, ESP32 controllers, and serial data systems. 640 x 480 CMOS module: CMOS@M14 scan module supports reliable code recognition in compact installations. Built-in aiming and feedback: white illumination LED, red focus and aiming LED, and buzzer feedback help scanning operation. Flexible mounting: rear magnet, M3 screw holes, and LEGO-compatible mounting holes support kiosk, fixture, and mobile mounting. Compact PC housing: 48 x 24 x 17.5mm scanner base is suitable for small scanning devices and embedded barcode readers. A133-B integration path: useful for inventory scanner, retail QR code scanner, warehouse barcode scanner, and manufacturing traceability scanner projects. Specifications SKU M5-A133-B Product M5Stack Atomic QRCode2 Base UART 1D 2D Barcode QR Code Scanner Sensor 640 x 480 CMOS@M14 module Illumination White LED Focus and Aiming Red LED Supported 2D Code Types PDF417, QR Code, Data Matrix Supported 1D Code Types Code11, Code39, Code93, Code128, EAN-13, EAN-8, UPC-A, UPC-E, Codabar, Interleaved 2 of 5, Matrix 2 of 5, Industrial 2 of 5, MSI, GS1 Reading Accuracy >=5mil Print Contrast >=20% Scanning Angle Rotation 360 degrees, tilt +/-55 degrees, skew +/-55 degrees Field of View Horizontal 34 degrees, vertical 28 degrees Communication Interface UART@115200 Power Consumption Test Standby current without ATOM host: DC 5V/116.57mA; operating current with Atom-Lite: DC 5V/174.18mA Operating Temperature 0 to 40 degrees C Housing Material Plastic, PC Product Size 48 x 24 x 17.5mm Package Size 136 x 92 x 18mm Product Weight 12g Gross Weight 14.2g Applications Inventory scanning systems that need a compact barcode QR code scanner and UART scanner module. Retail scanning prototypes for shelf labels, ticket codes, loyalty QR codes, and customer payment QR code scanning. Warehouse barcode scanner fixtures for logistics labels, package tracking, bin labels, and asset identification. Manufacturing traceability stations for work-order labels, batch codes, serial numbers, and production line scanning. Kiosk scanning, access control, ticket validation, smart cabinet, and embedded data-capture systems. Product List 1 Atomic QRCode2 Base Other Content Integration note: The M5Stack Atomic QRCode2 Base is a base module. Confirm ATOM host compatibility, UART wiring, 5V power, mounting direction, scan distance, ambient light, and code size before installing the barcode QR code scanner in a fixture. Scanning note: The 1D 2D barcode scanner supports multiple 1D and 2D code families, but final reading distance depends on code size, print quality, contrast, lens angle, and lighting. UART note: The UART scanner module outputs decoded barcode data over UART@115200. Validate AT commands, trigger behavior, and host-side serial parsing before deployment. Mounting note: The rear magnet, M3 screw holes, and LEGO-compatible holes make A133-B suitable for quick scanning fixtures, handheld readers, and compact embedded barcode reader prototypes. Selection note: Choose the M5Stack Atomic QRCode2 Base when a project needs a small UART barcode QR code scanner rather than a large handheld scanner body. Resources M5Stack Atomic QRCode2 Base Official Documentation Atomic QRCode2 Base Schematic PDF Atomic QRCode2 Base AT Command Manual Barcode Reading Range Table M5Stack Arduino UART Example FAQ What is M5-A133-B? M5-A133-B is the M5Stack Atomic QRCode2 Base, a compact UART barcode QR code scanner base for ATOM hosts and embedded scanner projects. Can it scan both QR codes and 1D barcodes? Yes. This 1D 2D barcode scanner supports PDF417, QR Code, Data Matrix, and common 1D barcode types such as Code39, Code128, EAN, UPC, Codabar, MSI, and GS1. How does the scanner communicate? The UART scanner module communicates through UART@115200 and outputs decoded barcode or QR code data to the host controller. What mounting options are available? The M5Stack Atomic QRCode2 Base includes rear magnet mounting, M3 screw holes, and LEGO-compatible mounting holes. Where is this barcode QR code scanner most useful? It is useful for inventory scanning, retail scanning, warehouse barcode scanner fixtures, logistics labels, manufacturing traceability, kiosk scanning, ticket validation, and embedded data capture.
