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The FSR410 25.42mm Round Force Sensing Resistor is a rugged, flexible, thin-film polymer component specifically engineered to deliver reliable tactile force data. Unlike rigid load cells or strain gauges that require bulky mechanical frames and precise physical alignment, this FSR is entirely flat. It operates on a robust shunt-mode principle: compressing the sensor forces micro-conductive particles inside the polymer film into closer contact, creating a measurable drop in resistance across its output leads.

With a generous 25.42 mm active sensing window, the FSR410 provides an excellent contact surface for human finger presses, foot placement tracking, or generic mechanical actuators. The sensor features a wide dynamic triggering threshold, registerable from an ultra-light 30 grams up to a firm 10 kilograms. It is highly resilient, capable of enduring millions of compression cycles without material fatigue, making it perfect for custom control panels, medical devices, and robotic grip arrays.

Key Features & Benefits:

• Wide Dynamic Response Range: Faithfully scales its analog output across a vast sensing range from 30g to 10kg, handling everything from light touch interactions to heavy mechanical loads.

• Ultra-Thin & Adaptable: At less than 0.5mm thick, the flexible backing material easily adheres to flat or slightly curved surfaces using simple double-sided adhesive sheets.

• Straightforward Circuit Integration: Converts physical pressure into an easily readable analog voltage curve using a simple voltage divider circuit paired with an external fixed resistor.

• Industry-Standard Pin Spacing: Features a flexible connection tail terminated with dual male pins spaced at a standard 2.54mm (0.1") pitch, making it fully compatible with breadboards and header sockets.

Technical Specifications

How to Use

The FSR410 Force Sensing Resistor operates essentially as a variable resistor whose value changes depending on physical squeeze, weight, or impact. Under no-load conditions, the sensor functions as an open circuit (infinity ohms). Once a light force exceeding its threshold (~30g) is applied, the resistance drops sharply below 100kΩ and continues to taper down log-linearly toward ~1kΩ under a maximum 10kg force.

How to Wire and Use:

Because it is a two-terminal variable resistor, the easiest way to read force data via a microcontroller (like Arduino, ESP32, or Raspberry Pi Pico) is by building a simple Voltage Divider Circuit:

1. Connect one pin of the FSR410 to the positive supply voltage (5V or 3.3V).

2. Connect the second pin of the FSR410 to an Analog Input Pin (e.g., A0) on your microcontroller.

3. Connect a fixed pull-down resistor (typically 10kΩ) from that same Analog Input Pin to GND.

4. Read the changing voltage values via your microcontroller's Analog-to-Digital Converter (ADC) using the analogRead() function. Higher pressure readings correspond to a higher voltage input.

Mechanical Integration Tips:

• Firm Backing: To achieve accurate metrics, the FSR410 must be mounted to a flat, rigid, non-yielding support surface.

• Actuator Placement: Ensure the applied mechanical force covers the active circular area uniformly rather than pressing directly against the outer traces or tail junction.

Common Applications

Thanks to its wide pressure range, large sensing area, and low profile, this sensor is widely integrated across multi-disciplinary designs:

• Human-Machine Interfaces (HMI): Used as smart touch-sensitive buttons, foot pads, or pressure-activated switches.

• Robotics Grippers: Measuring grasp force on mechanical arms to ensure delicate objects are held securely without being crushed.

• Smart Beds & Seating: Tracking occupancy, posture alignment, or patient movement in medical and ergonomics research.

• Electronic Musical Instruments: Serving as velocity-sensitive drum trigger pads, expressions controls, and MIDI control surfaces.

• Industrial Safety Systems: Acting as weight-activated perimeter alerts or safety bumper stops around heavy automation zones.

Package Includes

• 1 x FSR410 25.42mm Round Force Sensing Resistor

Shipping & Delivery

At Electroboat Technologies, we guarantee pristine delivery and rapid logistical processing for all your advanced development modules.

• Free Shipping: Enjoy Free Shipping on all orders above ₹999 across India.

• Dispatch Time: Your order will be carefully packed and dispatched within 1-3 business days.

• Estimated Delivery: Expect your package at your doorstep within 3-7 business days (depending on your specific location).

• Secure Packaging: We use specialized anti-static and cushioned packaging to ensure total safety and safe transit of all your sensitive electronic components.