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.

Pressure & Touch Sensors - BMP-180, Capacitive & Metal Sensors

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

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

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

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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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