Flex Sensor 2.2″

Description

Flex Sensor 2.2″

The Flex Sensor 2.2″ is an innovative bend detection device widely used in robotics, gaming, medical applications, and more. This flexible analog sensor changes resistance as it bends, providing precise motion-sensing capabilities. The Flex Sensor 2.2″ is easy to integrate with microcontrollers, making it a perfect choice for Arduino, Raspberry Pi, and embedded systems.

How the Flex Sensor 2.2″ Works

The Flex Sensor 2.2″ is coated with a conductive polymer ink, embedded with microscopic conductive particles. When the sensor is in its straight position, it has a baseline resistance of about 30KΩ. As it bends, the conductive particles move apart, increasing the resistance. When fully bent at 90°, the resistance reaches approximately 50KΩ – 70KΩ.

This variation in resistance can be measured using an analog-to-digital converter (ADC) in microcontrollers. By mapping these values, it is possible to determine the degree of bending, making it useful for motion tracking, robotic limbs, and gaming controllers.

Key Features of Flex Sensor 2.2″

• Precise Angle Displacement Measurement – Detects and measures bending angles accurately.
• Bend and Flex Capability – Designed to bend only in one direction for accurate results.
• High Sensitivity – Resistance varies from 30KΩ to 70KΩ, ensuring precise readings.
• Easy to Interface – Works with Arduino, Raspberry Pi, and microcontrollers.
• Durable & Long-lasting – Withstands over 1 million bending cycles.
• Compact & Lightweight – Measures 2.2″ (7 cm) in length with a thickness of 0.43mm.
• Low Power Consumption – Requires minimal power, making it ideal for battery-powered applications.
• Standardized Connectors – 0.1″ spaced pins make it breadboard-friendly.
• Versatile Applications – Used in robotics, medical devices, wearables, and gaming.
• Compatible with Multiple Platforms – Works with I²C, SPI, and ADC-based microcontrollers.

Applications of Flex Sensor 2.2″

The Flex Sensor 2.2″ is widely used in various fields:

• Robotics – Helps in detecting joint movements in robotic arms and limbs.
• Gaming (Virtual Motion) – Enables motion control in wearable gaming devices.
• Medical Devices – Used in prosthetics and physical therapy sensors.
• Computer Peripherals – Integrated into gesture-based input devices.
• Musical Instruments – Detects finger movements in electronic instruments.
• Physical Therapy – Tracks muscle and joint movements for rehabilitation.
• Wearable Technology – Used in smart gloves and fitness tracking devices.
• Angle Displacement Measurement – Measures precise angular movement.

How to Use the Flex Sensor 2.2″ in Projects

1. Connecting to an Arduino:

   • Connect one pin of the Flex Sensor 2.2″ to 5V and the other pin to an ADC pin on Arduino.
   • Add a pull-down resistor (10KΩ-47KΩ) for stable readings.
   • Read the sensor data using analogRead() and map the resistance changes to bending angles.

2. Interfacing with Raspberry Pi:

   • Use an ADC module (e.g., ADS1115) as Raspberry Pi lacks an analog input.
   • Read sensor data via I²C communication.

3. Using in Robotics Applications:

   • Attach the Flex Sensor 2.2″ to robotic joints or fingers.
   • Process resistance changes to control servo motors and mimic human movements.

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