Bend Labs Digital Flex Sensor - 1-Axis, 4 Inch

The Bend Labs Digital Flex Sensors are an innovative solution for measuring motion, providing a unique alternative to existing sensor technologies for measuring a highly accurate and drift-free angular displacement in a soft form factor while maintaining extremely low power consumption. Constructed using highly durable, medical grade silicone elastomers, this is a single axis bidirectional flex sensor which measures one angle for 2D orientation. Its low-power, integrated analog front end, with I²C interface, provides angular displacement data in degrees and includes onboard calibration and bootloader.

The angular displacement is path independent, meaning extraneous bending is rejected. Common mode signals such as stretching and temperature fluctuations are also rejected, providing a high fidelity measurement of angular displacement ideal for a wide variety of applications. This sensor requires 1.62-3.6V regulated supply for proper operation. Python example showing how to bend in real time.

Features:

• Highly flexible, soft, silicone elastomers for unrestricted bending
• Water/weather resistant and highly durable
• Onboard calibration and bootloader
• Sensitivity: 0.016° LSB
• Voltage: 1.62-3.63V
• Output: I²C
• Power Consumption @ 3.3V
  • 200uA @ 100Hz
  • Active run down to 97uA
  • 1.7uA suspended
  • 50nA shutdown
• Power Consumption @ 1.8V
  • 183uA @ 100Hz
  • Active run down to 78uA
  • 1.7uA suspended
  • 50nA shutdown
• Dimensions: 100mm x 7.62mm x 1.27mm
• Life Cycle: >1M cycles

Documents:

• Getting Started Guide
• Demonstration Video
• Datasheet
• Pinout
• Theory Guide
• Displacement Sensor Arduino Library
• GitHub Hardware Repo

Videos