digital rpm meter connection with proximity sensor || tachometer connection

#electricalteluguofficial

[@krishnachaitanyav7144]

how to get the speed in rpm

[@chipautomation]

Number of Pulses in 60 second is equal to RPM.

[@mattivirta]

not good, need 5 digit display how make it, max speed need measure 30 000 RPM thats show only max 9999 RPM

[@chipautomation]

I Have