Hello all. I have been asked by a co-worker if this would be difficult to build. What we are looking to do is make a d.c. motor test machine. It needs to do just a few things. 1. Test the rpm. No less than 10,500 RPM 2. Test the Amperes being drawn at that speed No More than 6.2 Amps. 3. Torque it can handle. 4. Horse Power of motor. no more than 1/8 H.P. That's really about it. As far as RPM goes I thought about using a small magnet and a hall sensor. Let it sample for say 5 sec. the calculate it out. As for the amps. A simple amp meter would work. Is there a way to read the amps and then print it out or display a report ? Measure Torque ?? H.P. can be done with the amount of watts that it draws. 1H.P. = 745 watts (I think) Any suggestions on which pic to use? Or anything else I might need to look at? Please remember I'm just a hobbyist. Have only made a few simple things. But I would like to figure something out. If noting more than just to have a challenging project. Thanks.. Jeff