So today, I have got the updated PPM encoder s/ware working to do RPM measurement on one input channel.
For an RPM range of about 300 - 2000, the output pulse to the AP CPU is ranging from 2mS to 0.5mS. The ACM code might need modding to accept this, without thinking its a sync pulse, but thats the next task. All this will need further calibration when I test it with the motor running.
The RPM sensor is an IR LED and IR photodiode,…Continue
Many years ago, I tried building a model heli autopilot out of some old mouse position sensors, an 8031 micro, and my Hirobo shuttle. The whole thing seemed to work on the bench, but quickly broke a few blades when I slammed the throttle on for an air test. Such is life.
Now - its happening all over again, but this time, due to the excellent work done by the Ardupilot teams, I expect much better results.
So I got my APM for xmas, and its taken a month of…Continue
Added by Hardy Maxa on January 15, 2011 at 3:00am — No Comments