Microcontroller › 8051 › How Pressure Sensor is Interfaced with At89C51 microcontroller › yepgood point. good ideau can
good point. good idea
u can use load cell.
along with load cell use op-amp.
give output of load cell to op-amp. use op-amp as comparator.
set comparator output such that when pressure on load cell increases to certain limit
use this output to trigger micro controller