Fig 1.3 Hardware overview
The system hardware consists of an accelerometer and Flex sensors
attached to the glove which are the input devices. The signal so
generated by these two sensors is given to the voltage divider and then
to the Arduino Uno microcontroller which acts as the heart of the
system. Flex sensors made up of resistive carbon element shows the
property of change in resistance according to the bending of sensor
(fingers). Five Flex sensors are mounted on five fingers of the hand.
Accelerometer works on the concept of gravity and serves the purpose
of sensing the direction. The output of the Flex sensor is the varying
resistance which is converted into a voltage signal using a voltage
divider bias circuit.
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