🧩 The QRCode Unit is a compact and integrated 1D/2D barcode scanner module combining a high-resolution 640×480 CMOS QR capture engine with a STM32F030 MCU for bus conversion. It features a physical toggle switch for seamless switching between I2C and UART communication interfaces.
📷 The scanner supports 3 types of QR codes and 8 types of 1D barcodes commonly used in logistics, retail, and manufacturing. It includes a firmware upgrade interface, a scan trigger button, a built-in buzzer, and LED lighting for aiming and feedback. The buzzer and green LED provide audio-visual cues to assist with focusing and targeting.
⚙️ The QRCode Unit can be configured for manual trigger mode or automatic continuous scanning via programming. It’s ideal for material flow tracking, inventory management, and smart retail systems.
⚠️ To switch to UART mode: Power off the device, toggle the mode switch to UART, then press and hold the TRIG button for 2 seconds while powering on. Release once startup completes. For assistance, contact technical support.
🔧 Key Features
- 🧠 STM32F030F4P6 @ 32-bit ARM Cortex-M0 processor
- 📷 Supports 3 types of QR codes and 8 types of 1D barcodes
- 🔄 Firmware upgradeable
- 🔌 I2C/UART communication interface switch
- 🔊 Built-in buzzer for sound prompts
- 💡 Integrated white LED for illumination
- 🎯 High-resolution imaging with focusing and aiming indicators
📦 Package Includes
- 1 × QRCode Unit
- 1 × HY2.0-4P Cable (20cm)
💡 Optional refracting scan head can be installed to adjust scanning angle, as shown above.
🚀 Applications
- 📦 Material flow tracking
- 🛒 Retail checkout and inventory
- 🏭 Manufacturing and production line scanning
📊 Specifications
| Specification | Details |
|---|---|
| MCU | STM32F030F4P6 @ 32-bit ARM Cortex-M0 |
| Sensor | 640×480 CMOS |
| Illumination | White LED |
| Aiming | Green LED |
| QR Code Types | PDF417, QR Code, Data Matrix |
| 1D Barcode Types | Code39, Code93, Code128, EAN-13, EAN-8, UPC-A, UPC-E, Interleaved 2 of 5 |
| Reading Accuracy | ≥5mil |
| Print Contrast | ≥20% |
| Scanning Angle | Elevation ±55°, Declination ±55° (adjustable with refractor lens) |
| Communication | I2C (0x21) or UART |
| Shell Material | Plastic (PC) |
| Product Size | 65.8 × 18.4 × 15.8 mm |
| Package Size | 136 × 92 × 16 mm |
| Product Weight | 14 g |
| Package Weight | 19.4 g |
📐 Schematics
📄 Datasheets