Propeller tachometer (in the field this time)

yarisboy

Take 4. Propeller tachometer under field conditions (in the car, not on a bench simulator this time)

http://www.youtube.com/watch?v=wkKVYTF8cgY&feature=mfu_in_order&list=UL

Now I have to program out that pesky leading zero for RPM readings less than 1,000.

idbruce

@yarisboy

Very cool and well done. Good luck with your leading zero.

Bruce

Dr. Mario

NICE! That's also very convenient, as I know some people would like to know how fast their engines are running.

Cluso99

Very nice! At least you will only need to remove one leading zero

Jim Edwards

yarisboy wrote: »

Take 4. Propeller tachometer under field conditions (in the car, not on a bench simulator this time)

http://www.youtube.com/watch?v=wkKVYTF8cgY&feature=mfu_in_order&list=UL

Now I have to program out that pesky leading zero for RPM readings less than 1,000.

Have you posted your code yet to the objects library? I'm trying to do something similar and would like to check it out. Thanks!

yarisboy

Its posted but hasn't been released yet by Parallax staff. I keep adding to it so its been a rolling doughnut for a while now. Caution, attached .zip file hasn't been blessed by the Parallax wizards yet.

Jim Edwards

Thanks for the code drop.
Does the RPM signal actually depend on the number of cylinders? I thought that RPM in most cars is just equal to the frequency of the signal to the tach i.e. 4000 Hz signal = 4000 RPM.