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).
