0.5 Inch Circular Force Sensor (FSR) - Compoden
0.5 Inch Circular Force Sensor (FSR)
The 0.5 inch (14.7mm) circular force sensor is a robust, thin force-sensitive resistor (FSR) that changes its resistance when pressure is applied. Use it to detect physical force, squeeze, or weight in interactive electronics, robotics, or medical applications. Its compact size makes it easy to embed in prototypes and finished products.
Key Specifications
| Specification | Value |
|---|---|
| Diameter | 0.5 inch (14.7 mm) |
| Thickness | 0.46 mm |
| Force Range | 0.1 N to 100 N (0.01 kg to 10 kg) |
| Resistance | >1MΩ (no load) to ~1kΩ (full load) |
| Repeatability | ±2% |
| Operating Temperature | -30°C to +70°C |
What You Can Build With This
- Grip strength trainer with real-time feedback.
- Presence detection mat for seating or occupancy.
- Robot fingertip sensor for gentle grasping.
- Simple weight measurement scale with calibration.
Compatibility
This force sensor works with any microcontroller that has an analog input, such as Arduino, ESP32, and Raspberry Pi (via ADC). Operate it with a 3.3V or 5V supply. Common pairings include the Arduino Uno for prototyping or the ESP32 for IoT force-monitoring projects.
Wiring Notes
Connect one pin to VCC through a 10kΩ pull-up resistor, the other to GND, and read the voltage at the junction with an analog input. Keep current below 1mA to prevent damage. For stable readings, place a 0.1µF capacitor across the sensor to reduce noise.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino?
Yes, simply create a voltage divider with a fixed resistor and connect the output to an analog pin. Example code is widely available.
Can it measure exact weight?
It provides relative force readings. For absolute weight, calibrate with known masses in a stable mechanical setup, but accuracy may vary.
Does it come with a connector?
The force sensor has two bare pins; you need to solder leads or use a connector. A 2.54mm pitch header works well.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items