Do motors these days provide their speed as an output? Only quadcopter I had (couple years ago) had to be manually calibrated by flying it up, noticing which wa

Do motors these days provide their speed as an output? Only quadcopter I had (couple years ago) had to be manually calibrated by flying it up, noticing which way it listed or rotated, adjust the trim, repeat. I suppose you could use some sort of gyro/accelerometer for the input.