Hi, I need to read the motor speed with my raspberry pi. The motor provides an output of 48V and 5mA max, 1 pulse per revolution.
I can do it with a voltage divider but I guess that the waste of energy is high. How could I down that voltage to 3.3v in a simple/efficient way?
Thanks in advance!
I can do it with a voltage divider but I guess that the waste of energy is high. How could I down that voltage to 3.3v in a simple/efficient way?
Thanks in advance!