simple arduino based power meter for motor dyno Current output is a simple print to screen with torque sensor voltage, torque, speed sensor frequency, rpm and power computation. This is in the serial plotter format so plots can be made from Arduino.

3.27 6.56 492.85 2957.12 2032.27 3.27 6.57 492.85 2957.12 2035.30 3.27 6.56 491.64 2949.85 2027.28 3.27 6.56 492.85 2957.12 2032.27 3.27 6.56 492.85 2957.12 2032.27

3.27V = 6.56NM, 492Hz @ 10pulses per rev = 2957RPM, (2957RPM * 6.56NM)/9.5488 = 2032Watts