DFRobot
4x8 Flexible Tactile Pressure Sensor with UART
· MPN: SEN0705
This flexible tactile pressure sensor gives your project a compact 4 x 8 pressure matrix for mapping contact across a small surface. It integrates 32 indepen...
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This flexible tactile pressure sensor gives your project a compact 4 x 8 pressure matrix for mapping contact across a small surface. It integrates 32 independent sensing points in a 20 x 10mm active area, making it useful for robotic grippers, electronic skin, wearable electronics, human-machine interaction and research setups.
The thin-film FPC sensor is designed for tight spaces and curved contact areas, with adhesive backing for easier mounting. A compact adapter board handles the sensing interface, so you can read matrix pressure data over UART instead of building separate analogue acquisition circuitry for each point.
UART cascade support helps reduce wiring complexity in multi-sensor prototypes, and the module is suited to Arduino, ESP32 and Raspberry Pi ecosystems. The kit includes the adapter board, the 4×8 flexible array pressure sensor and a 30cm flexible silicone connection cable.
Features:
- 4 x 8 tactile matrix with 32 independent pressure sensing points
- 20 x 10mm compact sensing area for high-density pressure mapping
- 2.5mm sensing point pitch for localised force distribution detection
- Response time below 10μs for dynamic tactile signal capture
- UART communication interface with cascade support
- Compatible with Arduino, ESP32, and Raspberry Pi ecosystems
- Ultra-thin flexible FPC structure for electronic skin-style integration
- Adhesive backing for easy mounting on compact or curved surfaces
- Durability above 1,000,000 cycles at 1kg force
- Repeatability of ±5% for long-term pressure sensing applications
Specifications:
- Operating Voltage: 5V
- Sampling Frequency: 20Hz / 50Hz
- Sensing Area: 20 x 10mm
- Array Configuration: 4 x 8 (32 points)
- Communication Interface: UART
- Trigger Force: 20g
- Pressure Range: 20g ~ 5kg (per sensing point)
- Pressure Type: Compression/Pressing
- Durability: >1,000,000 times (at 1kg force)
- Operating Temperature: -20℃ ~ +65℃
- Adapter Board Size: 20 x 12mm
A strong fit for smart grippers, tactile feedback experiments, wearable pressure monitoring and compact interactive controls.
Jargon buster
Plain-language definitions for the technical terms used above.
- ESP32
- ESP32 is a family of low-cost microcontroller chips and modules from Espressif with built-in WiFi and Bluetooth. They support programmable firmware and over-the-air updates, and are commonly programmed with toolchains such as the Arduino core and ESP-IDF.
- FPC
- FPC stands for flexible printed circuit, a thin flat flexible cable or connector style often used where space is tight or some movement is needed, commonly for displays, cameras and other high-density connections. Connecting to an FPC connector generally needs a matching cable with the correct pin count, pitch and contact orientation.
- UART
- UART is a simple asynchronous serial interface that sends data over separate transmit and receive wires, usually labelled TX and RX, with both ends set to the same baud rate. It is a common way for microcontrollers and other serial devices to exchange data.
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Sensors & Input
Supplier page — dfrobot.com
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