DFRobot
Gravity: Digital Capacitive Touch Sensor For Arduino
A digital capacitive touch sensor from DFRobot's Gravity series. It detects touch through the same capacitive sensing technology used in smartphones — even t...
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A digital capacitive touch sensor from DFRobot's Gravity series. It detects touch through the same capacitive sensing technology used in smartphones — even through thin cloth or paper. The sensor outputs a digital high/low signal, making it a simple drop-in replacement for mechanical buttons in Arduino and Raspberry Pi projects.
Part of the Gravity ecosystem, the sensor features a standard 3-pin digital interface that connects directly to Gravity-compatible expansion shields. It operates at 3.3–5 V, making it compatible with Arduino, Raspberry Pi, and other 3.3 V platforms.
Key Features
- Capacitive Touch Detection – Senses touch through thin materials like cloth or paper
- Digital Output – High/low signal for easy integration
- 3.3–5 V Compatible – Works with Arduino, Raspberry Pi, and other boards
- Gravity Interface – Plug-and-play with Gravity expansion shields
- Immersion Gold PCB – High-quality, corrosion-resistant surface
Specifications
- Supply Voltage: 3.3–5 V
- Interface: Digital
- Dimensions: 22 × 30 mm
Package Contents
- 1× Capacitive touch sensor
- 1× Digital cable
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- capacitive sensing
- Capacitive sensing detects changes in electrical capacitance caused by a nearby object or material, such as a finger, water, or moisture in soil. It is used for touch buttons, proximity detection, and liquid or moisture-level sensing, and it matters because it can work without exposed metal contacts, avoiding the corrosion that bare probes suffer in damp conditions.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- PCB
- A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
Find this product in
Brands
Sensors & Input
Supplier page — dfrobot.com
Supplier Description · 608.7 KB · Click any page to view full size
DFR0030 capacitive touch sensor schematics V1.0
Schematic · 36.7 KB · Click any page to view full size
Related Tutorials
Free guides on learn.littlebird.com.au
