M5Stack QR Code Scanner Unit
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M5Stack QR Code Scanner Unit
Description
QR Code Scanner Unit is an all-in-one 1D/2D code scanning unit for embedded code reading. It combines a 640 x 480 CMOS capture engine with an STM32F030 bus conversion MCU, so QR Code Scanner Unit can connect through I2C or UART by changing the side switch.
QR Code Scanner Unit supports PDF417, QR Code, Data Matrix and fourteen 1D barcode types. The trigger button, buzzer, white fill-light LED and red aiming LED help with manual or continuous scanning in logistics, retail and manufacturing workflows.
Features
- QR Code Scanner Unit code support: reads PDF417, QR Code, Data Matrix and fourteen common 1D code formats.
- Switchable host interface: QR Code Scanner Unit can work through I2C or UART with the side interface switch.
- Integrated scan hardware: the 640 x 480 CMOS engine, red aiming LED and white fill-light LED support stable code capture.
- Audible and manual control: QR Code Scanner Unit includes a trigger button and buzzer for scan operation feedback.
- Firmware-ready design: the capture engine keeps an interface reserved for firmware upgrades.
- Flexible trigger behavior: QR Code Scanner Unit can be configured for automatic continuous triggering or manual triggering.
Specifications
| MCU | STM32F030F4P6 32-bit ARM Cortex-M0 processor |
| Sensor | 640 x 480 CMOS M14 module |
| Illumination | White LED |
| Focus and Aim | Red LED |
| 2D Code Types | PDF417, QR Code, Data Matrix |
| 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 |
| Decode Resolution | ≥5mil |
| Print Contrast | ≥ 20% |
| Scan Angle | Pitch ±55°, skew ±55°; scan angle can be changed with the refraction lens attached |
| Communication Interface | I2C @ 0x21, UART selectable by side switch |
| Shell Material | Plastic (PC) |
| Product Size | 65.8 x 27.2 x 18.4mm |
| Product Weight | 14.0g |
| Package Size | 138.0 x 93.0 x 19.4mm |
| Gross Weight | 19.4g |
Applications
- Logistics barcode and QR code reading with QR Code Scanner Unit.
- Retail checkout, shelf labeling and inventory scanning workflows.
- Manufacturing traceability and work-in-process code verification.
- Embedded scanning terminals that need I2C or UART communication.
- Access, kiosk or device projects using QR Code Scanner Unit as a compact 1D/2D scanner.
Product List
- 1 x Unit QRCode
- 1 x HY2.0-4P Grove Cable (20cm)
Other Content
Interface Selection and PinMap
QR Code Scanner Unit uses the side switch to select I2C mode or UART mode. In I2C mode it communicates at address 0x21, while UART mode maps the yellow and white Grove lines to UART receive and transmit for QR Code Scanner Unit host integration.
| I2C Mode / PORT.A Black | GND |
| I2C Mode / PORT.A Red | 5V |
| I2C Mode / PORT.A Yellow | SDA |
| I2C Mode / PORT.A White | SCL |
| UART Mode / PORT.C Black | GND |
| UART Mode / PORT.C Red | 5V |
| UART Mode / PORT.C Yellow | UART_RX |
| UART Mode / PORT.C White | UART_TX |
| Trigger Button | STM32 PB1 / TRIG |
Scan Angle and Trigger Behavior
The refraction scan head can be installed to change the scan angle. Through program settings, QR Code Scanner Unit can use automatic continuous triggering or manual triggering for different scanning workflows, keeping QR Code Scanner Unit adaptable to fixed or handheld scanning.
Supported Code Families
QR Code Scanner Unit supports three 2D code types and fourteen 1D code types listed in the specifications, covering common logistics, retail and manufacturing labels.
Resources
- Unit QRCode product document
- Unit QRCode schematic PDF
- Unit QRCode model size drawing
- QRCode module datasheet
- Unit QRCode I2C mode test program
- Unit QRCode UART mode test program
- Unit QRCode UiFlow1 documentation
- Unit QRCode UiFlow2 documentation
- Unit QRCode internal firmware repository
- Unit QRCode control instruction PDF
- Unit QRCode I2C protocol PDF
FAQ
Which interfaces does QR Code Scanner Unit support?
QR Code Scanner Unit supports I2C and UART. The side switch selects the communication mode.
What code types can QR Code Scanner Unit read?
QR Code Scanner Unit reads PDF417, QR Code, Data Matrix and fourteen common 1D code types.
Does QR Code Scanner Unit support continuous scanning?
Yes. QR Code Scanner Unit can be configured for automatic continuous triggering or manual triggering.
What helps QR Code Scanner Unit aim and scan?
QR Code Scanner Unit includes a red aiming LED, white fill-light LED, trigger button and buzzer.
What is included in the package?
The package includes 1 x Unit QRCode and 1 x HY2.0-4P Grove Cable (20cm).
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.









