Contents
How do you interfacing flex sensor with Arduino?
As Flex sensor is a variable resistor, it can be read by connecting it with a fixed value resistor 10kΩ. This forms a voltage divider network. One end of the flex sensor is connected to GND while the other end is connected to Analog Input A0 of Arduino. A 10KΩ resistor is connected between A0 and +5V.
Where is a flex sensor used?
Applications. Flex sensor is used in wide areas of research from computer interfaces, rehabilitation, security systems and even music interfaces. It is also famous among students and Hobbyists.
How can I make a flex sensor at home?
My homemade flex sensor.
- Lets make it. Take 13cm of 2 thick paper. And also cut a 12 cm of 2 foil paper.
- Now take a 13cm paper. And rub it with a pencil: Stick the two thick paper together.
- Give one jumper wire to the foil paper and again to the other one. Connect to the breadboard.
What does flex sensor detect?
A flex sensor or bend sensor is a sensor that measures the amount of deflection or bending. Usually, the sensor is stuck to the surface, and resistance of sensor element is varied by bending the surface.
What devices use flex sensors?
Other Applications – Flex sensors are common in different technological products, such as automotive and industrial controls, computer peripherals, joysticks, and measuring devices. These are also present in fitness products, musical instruments, and assistive technology systems of modern vehicles.
How is a flex sensor connected to an Arduino?
As I have already mentioned in the Basic Flex Sensor Circuit part that a flex sensor is nothing but a variable resistor and it can be configured in a voltage divider fashion along with another resistor to measure the analog voltage. One end of flex sensor is connected to GND while the other end is connected to Analog Input A0 of Arduino.
What’s the best way to read a flex sensor?
The easiest way to read the flex sensor is to connect it with a fixed value resistor (usually 47kΩ) to create a voltage divider. To do this you connect one end of the sensor to Power and the other to a pull-down resistor. Then the point between the fixed value pull-down resistor and the flex sensor is connected to the ADC input of an Arduino.
What is the resistance of a flex sensor?
For example, with 5V supply and 47K pull-down resistor, when the sensor is flat (0°), the resistance is relatively low (around 25kΩ). This results in the following output voltage: When flexed all the way (90°), the resistance rises to 100KΩ.
How to control a servo motor with Arduino?
The code for controlling a servo motor using flex sensor and Arduino is given below. Using this code, depending on the bend of the flex sensor, the servo motor will change its angle.