Bluetooth HC - 05

hy, i am a new student who just want to learn about bluetooth hc 05. is the distance between bluetooth hc 05 to smartphone can be determined manually? tx

Your post makes no sense. If you want to know the range of HC-05, it is reliable to about 10m in line of site. It doesn't take much to kill the signal.

ihzayuda:
hy, i am a new student who just want to learn about bluetooth hc 05. is the distance between bluetooth hc 05 to smartphone can be determined manually?
tx

You bet.
To do it manually, use a tape measure.