[simpits-tech] Phidgets for sale?

[Matt Bailey]

---- Roy Coates <roy at flightlab.liv.ac.uk> wrote: 
> On 15 July 2011 18:50, <dabigboy at cox.net> wrote: 
> 
> Correct!  I'm using Phidget servo drivers to make em move, and Bodnar boards 
> to read the positions. 
 
How are you interfacing to the Bodnar board, are you using pots and the analog 
inputs to measure instrument position (basically, re-creating the servo's 
functionality, which is the path I'm leaning towards if I don't use winch 
servos)?  
 
> Just ordered a Butt-Kicker too for some subtle 'feeling' in the cockpit. 
> This is in addition to a powerful sub-woofer bolted under the seat ;-) 
 
This is the first I've heard of this device....let us know how it goes, it looks 
promising (and cheap!). The Frasca heli sim I flew last month used some sort of 
vibration or butt-kicker-like device and it did add a lot to the experience, 
especially when descending into your own rotor-wash (which turned out to be not a particularly wonderful idea).
 
> The list so far... 
> 
> 2 Bodnar boards  (pitch/roll/yaw/throttle/trim/carb heat/mixture/flaps/read 
> servo pos/switches) 
> 2 Phidget servo boards  (to drive instrument servos) 
> 2 Phidget Analogue-4 boards (to drive real gauges such as fuel qty, oil temp 
> etc) 
 
Are you using variable voltage to drive air-core motors? I have just recently been 
doing some research on air-core movements and it looks like this would be 
possible, but I'm not sure yet.....people keep talking about H-bridges and other 
intermediary circuits. I think I can actually just use two digital outputs on my Phidget IO kit and pulse-width modulation to send the right "voltage" to the terminals of the flap gauge I got off ebay....I've determined that my gauge can be set by varying DC voltage, but I really don't know if it's an air-core motor....I'm pretty sure it is.
 
Matt 
 		 	   		  
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