Aiming at the actual needs of tactile sensing detection

a piezoresistive flexible pressure sensor array signal acquisition system based on STM32 micro controller unit（MCU）and the method of combining grading and voltage sharing with constant current source is designed.Based on serial communication technology

a computer signal reading and analysis system is designed.The system can realize the real-time acquisition

analysis and storage of sensor array signal

and has good stability.A series of standard resistors are used to test the performance of the developed signal acquisition system.The error between the measured resistance and the standard resistance is less than 1 %

which indicates that the signal detection system can meet the signal detection requirements of piezoresistive flexible pressure sensor array.