# Gravity: Ring 2D QR Code Scanner

**Type:** Product page · **SKU:** SEN0486 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/gravity-ring-2d-qr-code-scanner.html ([markdown](https://core-electronics.com.au/gravity-ring-2d-qr-code-scanner.html.md))

This highly-integrated QR code scanner with excellent performance can recognize common 1D codes and 2D codes. Operating at 3.3V/5V, the scanner is...

## Pricing

- **Price:** $65.27 (inc GST) — $59.34 AUD, exc GST
- **Quantity discounts:** 10+ $57.55 (exc GST) · 20+ $57.40 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Oct 30 and Nov 03.

## 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-Overview

Operating 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 R3**

**![Gravity:Ring 2D QR Code Scanner](https://core-electronics.com.au/attachments/localcontent/Connection-Diagram_39482f3f2c0.png)**

It can be used in self-service vending machines, subway gates, access control, payment machines, etc.

### Features

- Use-to-connect Gravity interface
- 3.3V/5V power supply
- I2C & UART supported

### Applications

- Self-service vending machines
- Subway gates
- Access control
- Payment machines

### Specification

- Power Supply: DC3.3V/5V
- Working Current: <70mA
- Communication: I2C, UART
- Image Pixel: 640\*480
- Light Source: colorful indicator/green light flashing prompt successful reading
- Code System: 1D: EAN13, EAN8, UPCA, UPCE0, UPCE1, Code128, Code39, Code93, CodeBar, Interleaved 2 of 5
- 2D: QR code, Data Matrix, PDF417
- Depth 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: =5mil
- Working Temperature: 20°C ~60°C
- Storage Temperature: -40°C ~80°C
- Environment Light: 0~100000Lux
- Relative Humidity: 5% to 95% (non-condensing)

### Documents

- [Product wiki](https://wiki.dfrobot.com/SKU_SEN0486_Gravity_Ring_2D_QR_Code_Scanner)

### Parts List

- Ring 2D QR Code Scanner x1
- Adapter Board x1
- PH2.0-4P Dupont Wire 30cm(Red Black Blue Green) x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_12476.jpg)