Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Brand | KEYES |
| Model Number | KY-038 |
| Sensor Type | Flexible Piezoresistive |
| Operating Voltage | 3.3V - 5V DC |
| Output Signal | Analog Voltage |
| Compatible Platforms | Arduino, Raspberry Pi, ESP32 |
| Active Area Diameter | 18mm |
| Force Range | 0g to 10kg (approx.) |
| Interface Type | 3-Pin Header (VCC, GND, SIG) |
| Package Includes | 1x Sensor Module, 1x FPC Cable |
Anonymous
Mar 26, 2026
Rating: 4/5
Great value for learning
Excellent module for understanding pressure sensing. It took a little calibration to get steady readings, but once set up, it responds well to touch and weight changes.
Anonymous
Mar 24, 2026
Rating: 5/5
Sensitive and durable
I've been using this for a digital scale prototype. The sensitivity is impressive for the price point. The thin film feels sturdy enough for repeated testing.
Anonymous
Mar 23, 2026
Rating: 4/5
Good integration with IDE
The analog output is very linear within the mid-range. You need to write your own mapping code for specific weight units, but the hardware does its job perfectly.
Anonymous
Mar 13, 2026
Rating: 5/5
Perfect for robotics grippers
This sensor works flawlessly with my Arduino Uno project. The resistance-to-voltage conversion is smooth, and the flexible film makes it easy to mount on curved surfaces of my robot hand.
Anonymous
Mar 04, 2026
Rating: 5/5
Compact and effective
Small footprint makes it ideal for wearable tech projects. I attached it to a shoe insole to track step pressure, and the data logs are consistent.
Anonymous
Mar 03, 2026
Rating: 3/5
Needs careful wiring
The sensor works, but the connector pins are a bit fragile. Make sure you solder carefully or use a breadboard gently. Once connected, the performance is solid.
Q: Is there a library available for this specific model?
A: While there isn't a brand-specific library, it functions as a standard analog sensor. You can use basic analogRead() functions or generic force sensor libraries available in the Arduino IDE.
Q: What is the maximum weight this can accurately measure?
A: The sensor is optimized for low to medium force applications, typically up to 10kg. Beyond this range, the readings may saturate or become non-linear.
Q: Does this module come with the connecting wires?
A: Yes, the package includes a short FPC cable to connect the sensor film to the breakout board module.
Q: Can this sensor measure dynamic force like tapping?
A: Absolutely. The piezoresistive element reacts quickly to changes in pressure, making it suitable for detecting taps or sudden impacts.
Q: Can I cut the flexible film to make it smaller?
A: No, cutting the active area of the thin film will damage the conductive traces and render the sensor non-functional. Please use the sensor as provided.
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