u can use built in counter | Microcontroller › 8051 › RPM CALCULATION › u can use built in counter October 30, 2015 at 11:09 pm #13433 Ashutosh BhattParticipant u can use built in counter (like T0 and T1 in 8051) of micro controller to count pulses generated by motor rotations calculate pulses for 1 sec that gives RPS – revolutions per second. then multiply it with 60 to get RPM
