possibility

[FAIR1]

 What is the possibility of running "Two" servos, a PIR and voice module off one PROP 1, all at the same time. The voice module is run on it's own power the PROP 1, just momentarily trigger's it. The PIR is run directly off the PROP 1 and I have one servo running on the PROP 1 right now. Will I have to run the second servo only as a signal input unit with it's own power source, or will the PROP 1 handle it.

1. PIR is, EFX-TEK
2. Voice module, own power and momentary trigger from PROP 1.
3. One servo running off PROP 1 (6V at 500mA?) I assume. "Head movement".
4. "Would like to add a second servo (6v at 500mA?)" I assume, as a jaw jack-er.

Can the PROP 1 handle this, or do I need to power the second servo with it's own power unit.

[JonnyMac]

There's no problem running two servos, so long as both servos are refreshed every 20ms -- no a beginner's project.  Now.... if you're wanting the second servo to animate a jaw in sync with the audio; probably not -- not easily, anyway, and not a program I (or anyone else can write for you due to the synchronization issues).

If you do a search on "servo blender" you'll find a couple programs that let you store servo moves in EEPROM tables.  The problem, though, is that the Prop-1 memory is very small and moving a jaw as if the prop was "talking" requires a lot of data.

[FAIR1]

 I can see that I am not advanced enough to write this to EEPROM tables. In my other post ("Program help") I used a Douglas Talking Fir as a jaw movement. This has failed as the gears on the drive movement have stripped from there axle, and are not replaceable unless I find and buy another unit. (Which will be used and most likely end up in the same condition).

So, would using a Scary Terry audio servo driver solve the jaw movement problem. I think it would, as the servo driver has it's own power source and is on all the time and the sound source is a Radio shack voice module triggered by the PROP 1, there would be no reason to change the program, just swap the Taking Fir parts out for the audio servo driver.

Am I thinking right on this or do I have it wrong?

[JonnyMac]

Yes, many EFX-TEK customers have used the Prop-1 or Prop-2 to start an audio player which is then routed through the Scary Terry Servo Driver for jaw motion on a prop.