>>46310Tbh, I think calibrations would be overkill unless you would place the doormat outdoors where you would then adjust for temperature changes which mess up the load cell readings.
If you'd like to calibrate the sensor readings from time to time you could easily trigger such a calibration with a button/your smartphone/etc and store the new calibration data permanently to your microcontroller.
A more serious issue I have thought of would probably be getting an unsuspecting female to stand still on the doormat for a couple of seconds with ideally no heavy clothes purses etc on her body, which would increase the reading. So a bed frame/couch/chair scale might be superior.
>>46317Because:
a) that's not the point of this thread
b) you don't want the person being weighed now that their weight is being measured
c) The idea is intriguing to me as a CS student regardless of this fetish stuff