Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Sensor Type	Strain Gauge Bend Sensor
Measurement Range	+/- 90 Degrees
Output Signal	Analog Voltage
Operating Voltage	3.3V - 5V DC
Linearity	High Precision (
Substrate Material	Flexible Polyimide
Connector Type	3-Pin Header (GND, VCC, SIG)
Dimensions	60mm x 10mm x 0.5mm
Response Time	< 5ms
Compatibility	Arduino, Raspberry Pi, ESP32

6 reviews

Anonymous

Mar 31, 2026

Rating: 4/5

Great precision, needs careful mounting

The accuracy is impressive for the price point. However, you need to ensure it is mounted flat and securely to get consistent readings. Once installed correctly, it works flawlessly with my Arduino Uno.

Anonymous

Mar 23, 2026

Rating: 5/5

Ideal for joint angle measurement

I am using these on a hexapod robot to measure leg joint angles. The linearity is excellent, and the signal noise is minimal. Highly recommended for anyone needing precise angular data without complex encoders.

Anonymous

Mar 22, 2026

Rating: 5/5

Much better than standard flex sensors

This strain gauge module is incredibly responsive compared to the cheap resistive flex sensors I used before. The ability to detect both positive and negative bending angles makes it perfect for my robotic finger project. Calibration was straightforward.

Anonymous

Mar 18, 2026

Rating: 5/5

Perfect for university projects

Bought this for my final year capstone project involving a smart glove. It detected subtle finger movements accurately. The documentation provided by the seller helped me integrate it quickly.

Anonymous

Mar 09, 2026

Rating: 4/5

Solid performance

Works as advertised. The build quality feels durable, and the flexible substrate hasn't shown signs of fatigue after thousands of bend cycles in my testing rig. Would buy again.

Anonymous

Mar 01, 2026

Rating: 5/5

Exceeded expectations

I was skeptical about the 'high-precision' claim, but after plotting the output values against a protractor, the correlation is nearly perfect. A fantastic alternative to expensive industrial sensors for hobbyists.

5 FAQ

Q: What is the maximum number of bend cycles this sensor can withstand?

A: Based on our stress testing, the sensor maintains accuracy for over 100,000 bend cycles within its specified range. Avoid bending beyond +/- 90 degrees to prevent damage.

Q: Can this be used underwater or in high humidity environments?

A: The base module is not waterproof. For humid or wet environments, we recommend applying a conformal coating or enclosing the sensor in a flexible waterproof membrane while ensuring the bending mechanism remains unrestricted.

Q: Does this sensor require an external amplifier or can it connect directly to an ADC?

A: The module includes a built-in signal conditioning circuit, so you can connect the SIG pin directly to the analog input of microcontrollers like Arduino or ESP32 without extra amplification.

Q: Is there a library available for Arduino to read this specific module?

A: Since it outputs a standard analog voltage, you do not need a specific library. You can simply use the standard analogRead() function and map the values to degrees in your code.

Q: What is the resistance value of the strain gauge itself?

A: The internal strain gauge bridge is designed with a nominal resistance of 350 ohms, optimized for the onboard Wheatstone bridge circuit included on the PCB.

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