binary1248
Senior Member
I need a few clues on this. It is a motorcycle tach taping into the control signal to the ignition circuit.
I will do the necessary signal conditioning to make the pulse PixAxe input freindly.
I just need some starting info on how to measure the duty cycle of the pulse.
Pulse is 1 ms wide
Duty cycle will range fro 120 ms to 12 ms where the 120 ms is idle and 12 ms is max (about 5000 rpm)
After measuring the duty cycle I can do the math to massage and convert it to a servo pulse control
The servo will be the analog readout (very small tach face).
Now the servo control and math is no problem for me, but the measuring the incoming pulse duty cycle, well just get me started and I can figure it out.
.
.
I have both 08m2 parts and 40X2 parts in my home lab.
Many thanks guys & girls.
Paul
I will do the necessary signal conditioning to make the pulse PixAxe input freindly.
I just need some starting info on how to measure the duty cycle of the pulse.
Pulse is 1 ms wide
Duty cycle will range fro 120 ms to 12 ms where the 120 ms is idle and 12 ms is max (about 5000 rpm)
After measuring the duty cycle I can do the math to massage and convert it to a servo pulse control
The servo will be the analog readout (very small tach face).
Now the servo control and math is no problem for me, but the measuring the incoming pulse duty cycle, well just get me started and I can figure it out.
.
.
I have both 08m2 parts and 40X2 parts in my home lab.
Many thanks guys & girls.
Paul