M5Stack Atomic QRCode2 Base UART 1D 2D Barcode QR Code Scanner
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M5Stack Atomic QRCode2 Base UART 1D 2D Barcode QR Code Scanner
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.
1. General Shipping Information
- We provide reliable shipping services with a tracking number for each order.
- Shipping addresses must be entered in English and should not contain special symbols, so that the courier system can recognize your location correctly.
- Please make sure your shipping address is accurate before placing your order. We ship strictly according to the address provided at checkout.
- In-stock orders are usually dispatched within 1 business day after order confirmation.
- Estimated delivery times refer to the period after dispatch and do not include order processing time, weekends, public holidays, customs inspection, or force majeure delays.
- If you need to cancel or modify your order, please contact us before the order is marked as “Shipped”. Once shipped, the order cannot be canceled or changed.
🚀 Need Faster Shipping?
If you require expedited shipping, please contact our customer support team at info@upenelab.com for a customized quote based on your destination.
2. Shipping Rates & Options
Shipping rates are calculated based on order value, destination, and available shipping methods. The final available options will be displayed at checkout.
2.1 Germany Domestic Shipping
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| Deutsche Post | €0.00 - €50.00 | €4.95 | 2-4 Business Days |
| Deutsche Post | Over €50.00 | Free | 2-4 Business Days |
|
DHL Paket (Faster Delivery) |
€0.00 - €50.00 | €6.95 | 1-3 Business Days |
|
DHL Paket (Faster Delivery) |
€50.00 - €100.00 | €2.00 | 1-3 Business Days |
|
DHL Paket (Faster Delivery) |
Over €100.00 | Free | 1-3 Business Days |
2.2 Selected EU Countries / Regions
Available EU shipping destinations are shown at checkout based on your shipping address. For orders shipped to selected EU countries or regions outside Germany, we use FedEx Regional Economy.
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| FedEx Regional Economy | €0.00 - €100.00 | €7.95 | 3-5 Business Days |
| FedEx Regional Economy | Over €100.00 | Free | 3-5 Business Days |
EU orders may be fulfilled from our Munich warehouse or, when applicable, from our Shenzhen warehouse depending on inventory availability. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.
2.3 United States
| Region | Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|---|
|
Continental U.S. (50 States) |
USPS Ground Advantage | €0.00 - €45.00 | €4.95 | 3-7 Business Days |
| USPS Ground Advantage | Over €45.00 | Free | 3-7 Business Days | |
| USPS Priority Mail | €0.00 - €45.00 | €16.95 | 1-4 Business Days | |
| USPS Priority Mail | Over €45.00 | €14.95 | 1-4 Business Days | |
|
Non-Continental U.S. (AK, HI, PR, etc.) |
USPS Ground Advantage | €0.00 - €60.00 | €6.95 | 5-9 Business Days |
| USPS Ground Advantage | Over €60.00 | Free | 5-9 Business Days |
Non-Continental U.S. regions include Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, and U.S. Armed Forces addresses.
2.4 International Destinations Outside the EU
For selected international destinations outside the EU, including Switzerland, the United Kingdom, and Norway, shipping rates are as follows:
| Order Amount | Shipping Cost |
|---|---|
| €0.00 - €300.00 | €19.95 |
| Over €300.00 | Free |
For non-EU destinations, import duties, taxes, and customs fees may be charged by the destination country and are the responsibility of the recipient.
3. Warehouses & Fulfillment
Our products may be stored in our Munich, Arlington, and Shenzhen warehouses. The actual shipping warehouse depends on product availability and destination.
3.1 Munich Warehouse
For products stored in our Munich warehouse, we use Deutsche Post or DHL Paket for domestic deliveries within Germany. For selected EU destinations outside Germany, we use FedEx Regional Economy.
3.2 Arlington Warehouse
For products stored in our Arlington warehouse, we use USPS or UPS for deliveries within the United States.
3.3 Shenzhen Warehouse
For pre-order items or products fulfilled directly from our Shenzhen warehouse, we arrange reliable international shipping based on destination and inventory status. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.
4. Inventory, Pre-orders & Split Shipments
- Inventory Status: Please check the product page for real-time stock information. If an item is out of stock in our local warehouses, it may be marked as “Pre-order”.
- Pre-order Fulfillment: Pre-order items may be shipped directly from Shenzhen or restocked to a local warehouse first before final delivery.
- Split Shipments: If your order contains both in-stock and pre-order items, we may ship them separately. No additional shipping fee will be charged for split shipments caused by our fulfillment arrangement.
5. Customs, Taxes & Delivery Issues
5.1 Customs and Taxes
For EU Member States:
Whether shipped from Germany or China, OpenELAB covers applicable import duties and taxes under DDP service where required. Customers in EU member states should not be charged additional import duties or VAT upon delivery.
For destinations outside the European Union, such as Switzerland, Norway, and the United Kingdom, import duties, taxes, and customs fees may be charged by local authorities upon delivery. These fees are the responsibility of the recipient.
5.2 Damaged, Delayed, or Lost Parcels
Please inspect your parcel upon delivery where possible. If you notice visible damage, please report it to the courier and contact us as soon as possible. This does not affect your statutory consumer rights.
If your parcel is delayed, lost, returned to sender, or the tracking information has not updated for an unusual period of time, please contact us at info@upenelab.com. We will assist you in checking the shipment status with the courier.
5.3 Incorrect Address or Failed Delivery
If a parcel cannot be delivered due to an incorrect or incomplete address provided by the customer, refusal of delivery, or failure to collect the parcel, additional shipping or return costs may apply.
6. VAT
For orders within the EU, VAT is collected at checkout according to the applicable destination rules. No additional VAT should be collected upon delivery for EU member state orders covered under our DDP shipping arrangement.








