Gravity: Ring 2D QR Code Scanner
Compact barcode scanner supporting 1D (Code128, EAN13, etc.) and 2D (QR, Data Matrix, PDF417) codes via UART or I2C, 3.3/5V supply. Depth of field 25–150mm for QR codes.
Pinout
- SDATX1Type · I2C, UART
- SCLRX2Type · I2C, UART
- GND3Type · Ground
- VCC4Type · Power
| Pin | Position | Type |
|---|---|---|
| SDATX | 1 | I2C, UART |
| SCLRX | 2 | I2C, UART |
| GND | 3 | Ground |
| VCC | 4 | Power |
Pin details
4 connections- SDATX1I2C, UART
- SCLRX2I2C, UART
- GND3Ground
- VCC4Power
Start wiring
USB · UART · I2C · 3.3 V · Module
Confirm the data interface matches your host board.
Module pins: VCC, GND, SDA/TX, SCL/RX. Schematik maps them to your board in the app.
Cameras
140 other optionsPi CSI modules, USB cameras, MCU-class OV2640/OV5640 boards, on-camera AI like HuskyLens and OpenMV, and thermal or ToF imagers — over 130 listings across very different pipelines.
0.3M Pixel Serial JPEG Camera Module visual preview0.3M Pixel Serial JPEG Camera Module
100X Industrial Microscope Lens for Raspberry Pi HQ Camera visual preview100X Industrial Microscope Lens for Raspberry Pi HQ Camera
12.3MP Camera Module for NVIDIA Jetson Nano & Raspberry Pi CM3 visual preview12.3MP Camera Module for NVIDIA Jetson Nano & Raspberry Pi CM3
2.4G Wireless Video Transmission Module (640*480 Resolution) visual preview2.4G Wireless Video Transmission Module (640*480 Resolution)
2MP GMSL Camera Module (A) visual preview2MP GMSL Camera Module (A)
2MP USB Night Camera with Microphone visual preview2MP USB Night Camera with Microphone
3D ToF Depth Sensor Camera with 1.14" LCD (0.15~1.5m, ROS1 & ROS2) visual preview3D ToF Depth Sensor Camera with 1.14" LCD (0.15~1.5m, ROS1 & ROS2)
5MP 25mm Lens for Raspberry Pi Camera - M12 Mount visual preview5MP 25mm Lens for Raspberry Pi Camera - M12 Mount
6mm Industrial Wide Angle Lens visual preview6mm Industrial Wide Angle Lens
6mm Wide Angle Lens for Raspberry Pi High Quality Camera visual preview6mm Wide Angle Lens for Raspberry Pi High Quality Camera
7inch DSI LCD with 5MP Front Camera for Raspberry Pi visual preview7inch DSI LCD with 5MP Front Camera for Raspberry Pi
8 Megapixels USB Camera with Microphone visual preview8 Megapixels USB Camera with Microphone
Related groups
4 groups
BOSON: Heart Rate Monitor Sensor i20 visual previewBiometrics
UART/I2C fingerprint modules, MAX30102 PPG breakouts, and analog ECG/EMG front-ends for access control and hobby biometric sensing.
Sensors · Biometric sensors · 26 parts
0.28 Inch LED Digital DC Voltmeter - Green visual previewPower monitors
INA-series I2C monitors, Hall-effect sensors like the ACS723 and Gravity 20A/50A boards, and non-invasive CT clamps for everything from 3.3V rail telemetry to mains current sensing.
Sensors · Current & voltage · 25 parts
25m Long Distance ToF Laser Sensor (±3cm Accuracy, 100Hz, 100K LUX Resistant) visual previewDistance sensors
About 180 listings spanning VL53-series ToF breakouts, HC-SR04 and MaxSonar ultrasonics, 360° triangulation LiDARs, IR proximity sensors, 24GHz mmWave presence detection and laser break-beam sensors.
Sensors · Distance sensors · 177 parts
4mm Mini Circular Force Sensor visual previewForce & weight
Interlink-style FSRs, strain-gauge load cells with HX711 amplifiers, and ready-made kits like DFRobot's Gravity I2C 1kg scale — from simple touch detection to accurate mass measurement.
Sensors · Force & weight · 28 parts