Design a lightweight system of a haptic sensor

based on piezoresistor

this system transfers pressure signal to resistance change

and then convert it to voltage signal for inverse filtering processing

by low power consumption Bluetooth chip CC2541

readout and wirelessly transmit haptic information. Bionic structure design is used in whole system

and the finger tip is covered by silica gel similar to human body which transfers pressure to piezoresistor smoothly. The circuit is implemented in the second knuckle

including power supply & regulation module

haptic sampling processing module and signal transfer module. The sensor system is highly integrated and convenient to practical application.