Square shaped Force Sensor Documentation

Force Range

0-100 N (adjustable)

Sensitivity

1-5 mV/N (typical)

Output Impedance

1 k (typical)

Operating Voltage

3.3 V to 5.5 V

Power Consumption

1 mA (typical)

Dimensions

10 mm x 10 mm x 2.5 mm (L x W x H)

Weight

2 grams (approximate)

Applications

Robotics and Automation: The Square Shaped Force Sensor is suitable for robotic grippers, robotic arms, and other automation applications where precise force control is required.
Wearable Devices: The sensor can be integrated into wearable devices, such as smart gloves, to detect hand movements and gestures.
Industrial Automation: The sensor can be used in industrial automation applications, such as force-controlled assembly, quality control, and material handling.
Medical Devices: The sensor can be used in medical devices, such as rehabilitation equipment, to detect forces and movements.

Operating Principle

The Square Shaped Force Sensor operates based on the principle of piezoresistivity, where changes in resistance occur in response to applied forces. The sensor consists of a sensing element, typically a Wheatstone bridge, which is connected to a resistive material. When a force is applied to the sensor, the resistive material changes its resistance, causing a corresponding change in the output voltage. This output voltage is proportional to the force magnitude, allowing the sensor to accurately measure forces.

Conclusion

The Square Shaped Force Sensor is a high-accuracy, compact force sensing component that offers a range of features and benefits for various IoT applications. Its compact design, low power consumption, and robust construction make it an ideal choice for integration into small devices, robots, and machines.

Pin Configuration

Square Shaped Force Sensor Documentation
Overview
The Square Shaped Force Sensor is a flexible printed circuit (FPC) based force sensor that measures the applied force or pressure. It is designed to provide a high level of accuracy and reliability in a compact, square-shaped package.
Pinout
The Square Shaped Force Sensor has a total of 4 pins, each with a specific function. The pinout is as follows:
Pin 1: VCC
Function: Power Supply
Description: This pin is used to supply power to the sensor. A voltage between 3.3V and 5V is recommended.
Recommended Connection: Connect to a stable power source, such as a voltage regulator or a microcontroller's power pin.
Pin 2: GND
Function: Ground
Description: This pin is used as a reference point for the sensor's output signal.
Recommended Connection: Connect to a common ground point in the circuit, such as a microcontroller's ground pin.
Pin 3: OUT
Function: Output Signal
Description: This pin provides an analog output signal that varies in proportion to the applied force or pressure.
Recommended Connection: Connect to an analog-to-digital converter (ADC) pin on a microcontroller or a dedicated analog input pin.
Pin 4: NC
Function: No Connection
Description: This pin is not connected internally and should be left unused.
Recommended Connection: Do not connect anything to this pin.
Connection Structure
To connect the Square Shaped Force Sensor to a microcontroller or other circuits, follow this structure:
Connect Pin 1 (VCC) to a stable power source (3.3V or 5V).
Connect Pin 2 (GND) to a common ground point in the circuit.
Connect Pin 3 (OUT) to an analog-to-digital converter (ADC) pin on a microcontroller or a dedicated analog input pin.
Leave Pin 4 (NC) unused.
Important Notes
Make sure to handle the sensor with care, as excessive force or pressure can damage the internal structure.
Ensure the sensor is mounted securely to prevent movement or vibration, which can affect accuracy.
Calibrate the sensor according to the manufacturer's instructions to obtain accurate readings.
By following this documentation, you should be able to properly connect and utilize the Square Shaped Force Sensor in your IoT projects.

Code Examples

Square Shaped Force Sensor Documentation

Overview

The Square Shaped Force Sensor is a versatile IoT component that measures the force applied to its surface, providing accurate and reliable data for a wide range of applications. This documentation provides a comprehensive guide on how to use this component, including its technical specifications, wiring diagram, and code examples for various contexts.

Technical Specifications

Sensor Type: Piezoresistive Force Sensor
 Sensing Range: 0-100 N (Newtons)
 Accuracy: 1% of full scale
 Operating Temperature: -20C to 70C
 Power Supply: 5V DC
 Analog Output: 0-5V DC
 Dimensions: 20mm x 20mm x 1.5mm (L x W x H)

Wiring Diagram

The Square Shaped Force Sensor has four pins:

VCC (Power Supply): Connect to 5V DC power source
 GND (Ground): Connect to ground
 OUT (Analog Output): Connect to microcontroller's analog input pin
 NC (Not Connected): Leave unconnected

Code Examples

### Example 1: Basic Force Measurement using Arduino

This example demonstrates how to use the Square Shaped Force Sensor with an Arduino board to measure the force applied to the sensor.
```c
const int forcePin = A0;  // Connect sensor output to Arduino's analog input pin A0

void setup() {
  Serial.begin(9600);
}

void loop() {
  int sensorValue = analogRead(forcePin);
  float force = (sensorValue  5.0) / 1024.0;  // Convert analog value to force in Newtons
  Serial.print("Force: ");
  Serial.print(force);
  Serial.println(" N");
  delay(100);
}
```
### Example 2: Force-based Gesture Recognition using Raspberry Pi and Python

This example demonstrates how to use the Square Shaped Force Sensor with a Raspberry Pi and Python to recognize simple gestures based on force patterns.
```python
import RPi.GPIO as GPIO
import time

# Set up GPIO pins
GPIO.setmode(GPIO.BCM)
force_pin = 18  # Connect sensor output to Raspberry Pi's GPIO pin 18

def read_force():
  value = GPIO.input(force_pin)
  force = (value  5.0) / 1024.0  # Convert digital value to force in Newtons
  return force

def recognize_gesture():
  force_values = []
  for i in range(10):  # Read force values over 10 samples
    force_values.append(read_force())
    time.sleep(0.1)
  
  # Simple gesture recognition logic
  if all(val > 50 for val in force_values):  # High force detected
    print("Gesture: Tap")
  elif all(val < 10 for val in force_values):  # Low force detected
    print("Gesture: Release")
  else:
    print("Gesture: Unknown")

while True:
  recognize_gesture()
  time.sleep(0.5)
```
Note: These code examples are for illustrative purposes only and may require adjustments based on your specific project requirements.

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