DFRobot Gravity: Flexible Array Tactile Pressure Sensors
DFRobot Gravity Flexible Array Tactile Pressure Sensors capture pressure distribution and localized force changes using compact thin-film sensing matrices. The DFRobot portfolio includes the SEN0704 with a 6×6 array of 36 detection points and the SEN0705 with a 4×8 array of 32 detection points. Both sensors provide real-time pressure data through a UART interface, reducing the need for complex analog acquisition circuitry.
The DFRobot Gravity Flexible Array Tactile Pressure Sensors use bendable FPC construction to conform to compact, curved, or narrow surfaces. Adhesive backing simplifies installation on robotic grippers, wearable devices, experimental fixtures, and electronic-skin prototypes. UART cascading and compatibility with Arduino, ESP32, and Raspberry Pi ecosystems support rapid prototyping and multi-sensor development.
Dedicated host software can visualize the sensing data as pressure heatmaps for evaluating overall force distribution and localized contact points. Fast response, repeated-cycle durability, and stable pressure sensing support robotic manipulation, human-machine interaction, wearable monitoring, and research applications.
Features
- Flexible thin-film construction for electronic-skin-style integration
- Independent sensing points for pressure-distribution mapping
- Real-time pressure heatmap generation through dedicated host software
- UART communication for simplified digital data acquisition
- Cascading support for multi-sensor configurations
- Compatibility with Arduino, ESP32, and Raspberry Pi ecosystems
- Adhesive backing for installation on compact or curved surfaces
- Resistance to deformation under elevated temperatures
- Durable, flexible silicone connection cable included with each sensor
- SEN0704
- Square sensing matrix for multidirectional pressure mapping
- SEN0705
- Rectangular sensing matrix for narrow or elongated contact surfaces
Applications
- SEN0705
- Intelligent robotics
- Human-Machine Interaction (HCI)
- Research and education
- Wearable technology
- Smart gripper
- SEN0704
- Intelligent robotic grippers
- Wearable biomechanics analysis
- Advanced Human-Machine Interaction (HCI)
- Material and scientific research
Specifications
- Common characteristics
- Operating voltage of 5V
- Sampling-frequency options of 20Hz and 50Hz
- UART communication interface
- Trigger force of 20g
- Pressure range of 20g to 5kg per sensing point
- Compression and pressing pressure detection
- Response time of less than 10µs
- Sensing-point pitch of 2.5mm
- Repeatability of ±5%
- Durability exceeding 1,000,000 cycles at 1kg force
- Operating temperature range of -20°C to +65°C
- Adapter board dimensions of 20mm x 12mm
- SEN0704
- 6×6 array configuration
- 36 independent sensing points
- Sensing area of 15mm x 15mm
- SEN0705
- 4×8 array configuration
- 32 independent sensing points
- Sensing area of 20mm x 10mm
Required Equipment
- Compatible Arduino, ESP32, Raspberry Pi, or UART-enabled controller
- Logic-level conversion when connecting the 5V adapter board to a 3.3V controller, where required
Required Software
- Tactile Sensor Tool host software for visualization and pressure heatmaps
- Compatible embedded software for the selected controller platform
Kit Contents
- SEN0704
- 1x adapter board
- 1x 6×6 flexible array pressure sensor
- 1x 30cm flexible silicone connection cable
- SEN0705
- 1x adapter board
- 1x 4×8 flexible array pressure sensor
- 1x 30cm flexible silicone connection cable
Videos
SEN0704 6×6 Overview
SEN0705 4×8 Overview
