The use of the sensor has been presented in [8]. Our sensing glove has two main
parts, i.e., sensors (ten flex sensors and one accelerometer) and a system of data
processing and communication. There are two flex sensors in one finger. Sensors
are fixed in one point then they can move when fingers bent. An accelerometer
and a system of data processing and communication (microchip Atmega32U is
used) are assembled in one small board that can be immobilized with a users
wrist. Flex sensors are passive resistive devices that can be used to detect bending
or flexing. Flex sensors are analog resisters and work as analog voltage dividers. Inside the flex sensor are carbon resistive elements within a thin flexible
substrate. When the substrate is bent, the sensor produces a resistance output
relative to the bend radius. An output of a flex sensor is an analog. Ten outputs
of flex sensors are connected to ten ADC channels of microchip Atmega32U.