{"title":"Gravity: Ring 2D QR Code Scanner","handle":"gravity-ring-2d-qr-code-scanner","url":"/products/gravity-ring-2d-qr-code-scanner","description":"This highly integrated QR code scanner with excellent performance can recognize common 1D codes and 2D codes. With a small size, it employs easy-to-connect Gravity Interface and is equipped with a colorful indicator that feeds back the sensor recognition status by showing different colors. Board-OverviewOperating at 3.3V/5V, the scanner is compatible with UART and I2C communication, which makes it easier to develop on controllers like Arduino, ESP32, Raspberry Pi, etc. Connection-Diagram with DFRduino UNO R3It can be used in self-service vending machines, subway gates, access control, payment machines, etc.FeaturesUse-to-connect Gravity interface3.3V/5V power supplyI2C & UART supportedApplicationsSelf-service vending machinesSubway gatesAccess controlPayment machinesSpecificationPower Supply: DC3.3V/5VWorking Current: <70mACommunication: I2C, UARTImage Pixel: 640*480Light Source: colorful indicator/green light flashing prompt successful readingCode System: 1D: EAN13, EAN8, UPCA, UPCE0, UPCE1, Code128, Code39, Code93, CodeBar, Interleaved 2 of 5      2D: QR code, Data Matrix, PDF417Depth of Field: QR Code (25mm-150mm product performance may be affected to varying degrees due to barcode quality and environmental conditions)Contrast: ≥25%Reading Angle: roll 360°, pitch 55°,  yaw 55°Scanning Angle: 69° (horizontal), 56° (vertical)Reading Accuracy: ≥5milWorking Temperature: 20°C ~60°CStorage Temperature: -40°C ~80°CEnvironment Light: 0~100000LuxRelative Humidity: 5% to 95% (non-condensing)DocumentsProduct wikiShipping ListRing 2D QR Code Scanner     x1Adapter Board     x1PH2.0-4P Dupont Wire 30cm(Red Black Blue Green)   x1","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":2569,"title":"Default Title","sku":"DF-SEN0486","price":67.57,"on_sale":false,"in_stock":true,"available_quantity":59,"option1":"Default Title"}]}