Pressure Sensors & Touch Sensors

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Touch Sensor

A touch sensor is a device that detects physical contact or proximity, replacing traditional mechanical buttons and switches. It is widely used in smartphones, tablets, industrial controls, and interactive kiosks. Touch probes work by responding to touch, force, or pressure and can be implemented using capacitive or resistive technology.

Capacitive touch sensor switch measure changes in electrical capacitance when a conductive object, like a finger, comes into contact. These capacitive touch button offer high sensitivity, accuracy, and responsiveness, making them ideal for intuitive user interfaces.

Metal touch sensors operate when touched by a charged body. They use a high-frequency transistor to detect electromagnetic signals and are commonly used in buttons, touchscreens, and human-machine interfaces. These sensors provide reliable touch detection and easy integration with microcontrollers and circuits.

Applications: Robotics, Home Automation, IoT, Industrial Sensing

Robotics – Detect gripper pressure, apply force feedback, use capacitive touch pads for robot input.
Home Automation – Wall touch panels, touch-sensitive surfaces, pressure mats for presence detection.
IoT Devices – Measure weight or force on sensors, detect human touch/proximity, monitor machine vibration or pressure remotely.
Industrial Sensing – Monitor pressure in tanks or pipes, detect contact on metal surfaces, implement safety-touch panels or operator controls.

Wiring Guides & Code Examples

Arduino – Basic Pressure Sensor (FSR) Example

const int fsrPin = A0;

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

void loop() {
  int fsrValue = analogRead(fsrPin);
  float voltage = fsrValue * (5.0 / 1023.0);
  Serial.print("FSR Voltage = ");
  Serial.println(voltage);
  delay(200);
}

Arduino – Capacitive Touch Sensor Example

#include <CapacitiveSensor.h>
CapacitiveSensor   touchSensor = CapacitiveSensor(4,2);

void setup() {
  Serial.begin(9600);
  touchSensor.set_CS_AutocaL_Millis(0xFFFFFFFF);
}

void loop() {
  long total = touchSensor.capacitiveSensor(30);
  Serial.print("Touch value: ");
  Serial.println(total);
  delay(200);
}

Raspberry Pi – GPIO Touch Detection Example

import RPi.GPIO as GPIO
import time

TOUCH_PIN = 17
GPIO.setmode(GPIO.BCM)
GPIO.setup(TOUCH_PIN, GPIO.IN)

try:
    while True:
        if GPIO.input(TOUCH_PIN) == GPIO.HIGH:
            print("Metal touch detected!")
        else:
            print("No touch")
        time.sleep(0.2)
except KeyboardInterrupt:
    GPIO.cleanup()

Sensor Type Comparison: Precision, Range & Response Time

Sensor Type	Typical Precision / Range	Response Time	Key Use
Pressure (FSR/Load Cell)	0.1 kg to 100 kg or more; resolution varies	~10-50 ms	Weight sensing, force feedback, robotics grippers
Capacitive Touch	Touch/hover detection; range ~0-15 mm	~5-20 ms	Touch panels, proximity triggers, user interfaces
Metal Touch / Conductive Touch	Contact or near-contact on metal surfaces	~5-30 ms	Industrial panels, rugged interfaces, safety switches

Installation, Calibration & Maintenance Tips

Mount sensors on a flat, stable surface; avoid flexing or bending the substrate.
Use short wiring and shielded cables when detecting low-level signals (especially for touch sensors).
Handle FSR or pressure sensors gently—avoid overstressing or bending beyond spec.
For capacitive sensors, avoid placing metal or conductive surfaces too close unless intended; calibrate with the real mounting environment.
Calibration for pressure sensors: apply known weights/forces, record sensor output, and map to physical units.
Calibration for touch sensors: record baseline reading with no touch, set threshold accordingly.
Regular maintenance: clean conductive surfaces, avoid dust accumulation for capacitive sensors; check wiring and connectors for looseness.

Pressure Sensor

A pressure sensor is a device that detects pressure and converts it into an electrical signal. The output signal varies based on the applied pressure, making the pressure transducer useful for a wide range of applications, from industrial systems to consumer electronics.

These pressure transducer sensors use piezoresistive MEMS (Micro-electromechanical systems) and silicon strain gauge technology to measure pressures as low as 1.25 mbar to as high as 100K psi (7K bar). They are designed for both standard and harsh environments, ensuring durability and precision.

A differential pressure sensor measures the difference in pressure between two points. This differential pressure transducer is often used in exhaust systems to monitor particle filters and exhaust gas recirculation, helping improve efficiency and reduce emissions

Buy Touch Sensor & Pressure Sensor Online

Robocraze is your trusted vendor of premium sensors, including accurate pressure sensors and sensitive touch sensor switch for Arduino, home automation and interactive devices.
To suit your demands, we also provide other sensors. Our wide variety of products serves both experts and hobbyists, whether you require accurate temperature, proximity, or motion sensors.
We offer outstanding value for your investment with prompt shipment, fair price, and first-rate customer service. Improve your creations using Robocraze's excellent sensors! Order your resistive touch sensor at the best price today!

Arduino Touch Sensor & Pressure Sensor Price

Pressures and Touch Sensors	Cost
MPR121 - 12 Channel Capacitive Touch Sensor Controller Module - I2C Interface	Rs.96
TTP226 8-Channel Capacitive Touch Pad Sensor	Rs.109
BMP180 Pressure Sensor Module	Rs.46
TTP223 Touch Switch Module	Rs.15
TTP223B Capacitive Touch Sensor Module	Rs.31
TTP229 16 Channel Capacitive Touch Module	Rs.128
KY-036 Metal Touch Sensor	Rs.38
MPX10DP Differential Pressure Sensor	Rs.1066

Other Sensors

1. What is a pressure sensor?

A pressure sensor is a device for pressure measurement of gases or liquids. Pressure is an expression of the force required to stop a fluid from expanding, and is usually stated in terms of force per unit area.

2. How do pressure sensors work?

A pressure sensor works by converting pressure into an analogue electrical signal. The demand for pressure measuring instruments increased during the steam age. We measure pressure electronically using pressure transducers and pressure switches.

3. What is the use of a pressure sensor?

Pressure sensors are used for control and monitoring in thousands of everyday applications. Pressure sensors can also be used to indirectly measure other variables such as fluid/gas flow, speed, water level, and altitude.

4. What is the use of touch sensors?

A touch sensor detects touch or near proximity without relying on physical contact. These sensors are making their way into many applications like mobile phones, remote controls, control panels, and many more. Touch sensors can replace mechanical buttons and switches.

5. Is a pressure sensor analog or digital?

Pressure sensor will produce an analog output signal that is proportional to the amount of applied pressure. These sensors are used for different types of applications such as piezoelectric plates or piezoelectric sensors that are used for the generation of electric charge.

6. Are these sensors compatible with Arduino and Raspberry Pi?

Yes, the sensors in this collection are designed to work well with platforms like Arduino and Raspberry Pi. Many modules provide digital or I²C / SPI interfaces, making it easy to wire them into your microcontroller or single-board computer. Whether you’re reading the pressure from a barometric sensor or detecting touch with a capacitive pad, you’ll find integration straightforward.

7. What is the measurement range of the BMP180 Pressure Sensor Module?

The BMP180 sensor measures atmospheric pressure in the range of 300 hPa to 1100 hPa, which roughly corresponds to altitudes from around –500 m (below sea level) up to +9000 m above sea level. It also measures temperature (for compensation), typically over a range of about –40 °C to +85 °C.

8. Can capacitive touch sensors detect multiple touch points?

Capacitive touch sensors typically detect a single touch point or simple touch/un-touch events very reliably. For true multi-touch (multiple fingers or simultaneous points), you’ll often need more advanced capacitive grids or dedicated multi-touch controllers. In many hobby modules, you’ll still get a very responsive single-touch interface that’s more than enough for buttons, sliders or simple interactions.

9. Are these sensors suitable for robotics and automation projects?

Yes, they’re very well suited. Pressure sensors like the BMP180 are useful in robotics for altitude sensing, environmental monitoring or closed-loop control. Capacitive touch sensors are great for human-machine interfaces, proximity sensing or trigger panels in automation. They both fit the maker/robotics ecosystem and integrate neatly into control systems, feedback loops or smart devices.

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Touch Sensor

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Applications: Robotics, Home Automation, IoT, Industrial Sensing

Wiring Guides & Code Examples

Arduino – Basic Pressure Sensor (FSR) Example

Arduino – Capacitive Touch Sensor Example

Raspberry Pi – GPIO Touch Detection Example

Sensor Type Comparison: Precision, Range & Response Time

Installation, Calibration & Maintenance Tips

Pressure Sensor

Buy Touch Sensor & Pressure Sensor Online

Arduino Touch Sensor & Pressure Sensor Price

Pressures and Touch Sensors

Cost

Frequently Asked Questions

1. What is a pressure sensor?

A pressure sensor is a device for pressure measurement of gases or liquids. Pressure is an expression of the force required to stop a fluid from expanding, and is usually stated in terms of force per unit area.

2. How do pressure sensors work?

A pressure sensor works by converting pressure into an analogue electrical signal. The demand for pressure measuring instruments increased during the steam age. We measure pressure electronically using pressure transducers and pressure switches.

3. What is the use of a pressure sensor?

Pressure sensors are used for control and monitoring in thousands of everyday applications. Pressure sensors can also be used to indirectly measure other variables such as fluid/gas flow, speed, water level, and altitude.

4. What is the use of touch sensors?

A touch sensor detects touch or near proximity without relying on physical contact. These sensors are making their way into many applications like mobile phones, remote controls, control panels, and many more. Touch sensors can replace mechanical buttons and switches.

5. Is a pressure sensor analog or digital?

Pressure sensor will produce an analog output signal that is proportional to the amount of applied pressure. These sensors are used for different types of applications such as piezoelectric plates or piezoelectric sensors that are used for the generation of electric charge.

6. Are these sensors compatible with Arduino and Raspberry Pi?

7. What is the measurement range of the BMP180 Pressure Sensor Module?

The BMP180 sensor measures atmospheric pressure in the range of 300 hPa to 1100 hPa, which roughly corresponds to altitudes from around –500 m (below sea level) up to +9000 m above sea level. It also measures temperature (for compensation), typically over a range of about –40 °C to +85 °C.

8. Can capacitive touch sensors detect multiple touch points?

9. Are these sensors suitable for robotics and automation projects?

Let customers speak for us

All Categories

Pressure Sensors & Touch Sensors

Categories

Refined By Clear all

Availability

Price

Featured Products

Sort by:

All About Pressure Sensors & Touch Sensors

Touch Sensor

Categories

Applications: Robotics, Home Automation, IoT, Industrial Sensing

Wiring Guides & Code Examples

Arduino – Basic Pressure Sensor (FSR) Example

Arduino – Capacitive Touch Sensor Example

Raspberry Pi – GPIO Touch Detection Example

Sensor Type Comparison: Precision, Range & Response Time

Installation, Calibration & Maintenance Tips

Pressure Sensor

Buy Touch Sensor & Pressure Sensor Online

Arduino Touch Sensor & Pressure Sensor Price

Pressures and Touch Sensors

Cost

Frequently Asked Questions

1. What is a pressure sensor?

A pressure sensor is a device for pressure measurement of gases or liquids. Pressure is an expression of the force required to stop a fluid from expanding, and is usually stated in terms of force per unit area.

2. How do pressure sensors work?

A pressure sensor works by converting pressure into an analogue electrical signal. The demand for pressure measuring instruments increased during the steam age. We measure pressure electronically using pressure transducers and pressure switches.

3. What is the use of a pressure sensor?

Pressure sensors are used for control and monitoring in thousands of everyday applications. Pressure sensors can also be used to indirectly measure other variables such as fluid/gas flow, speed, water level, and altitude.

4. What is the use of touch sensors?

A touch sensor detects touch or near proximity without relying on physical contact. These sensors are making their way into many applications like mobile phones, remote controls, control panels, and many more. Touch sensors can replace mechanical buttons and switches.

5. Is a pressure sensor analog or digital?

Pressure sensor will produce an analog output signal that is proportional to the amount of applied pressure. These sensors are used for different types of applications such as piezoelectric plates or piezoelectric sensors that are used for the generation of electric charge.

6. Are these sensors compatible with Arduino and Raspberry Pi?

7. What is the measurement range of the BMP180 Pressure Sensor Module?

The BMP180 sensor measures atmospheric pressure in the range of 300 hPa to 1100 hPa, which roughly corresponds to altitudes from around –500 m (below sea level) up to +9000 m above sea level. It also measures temperature (for compensation), typically over a range of about –40 °C to +85 °C.

8. Can capacitive touch sensors detect multiple touch points?

9. Are these sensors suitable for robotics and automation projects?

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