Progamming help with FSBus dll

[RobiD]

Here is the way that I was thinking about. This arrangement won't send a signal until all three OI's are switched.

Thanks Mike (Mikes Flightdeck), hope you don't mind me using this part of your wiring diagram.

David

[sgaert]

Ok that will work.

But please explain me 1 think.
Why you need 3 of them.
Like you said, you whant to use 1 Stepper with gears.
The gears are static. From the first moment to the next 1000 years the gear has the same translation ratio. There are no dynamic components where it is necessary that you synconise the 3 needels. Would you use 3 Steppers than you need 3 sensor.
In case of 1 Stepper with gears you need 1 sensor on the slowest part (10000 needle).

Btw. how you calculate the translation ratio, do you have a tool an X of different gears?
I would make it with 3 steppers and the rest are software. I dislike to rebuild anything for only a small change.

Stefan

[RobiD]

Hi Stefan,

I am using the design directly out of Mike's book. He has done all the hard work with the ratios. My understanding with 3 OI's is that it ensures that all 3 needles are zero'd in case there is any play in the gears (I know, there shouldn't be any). I intend to follow his design as every other design I've used from his book has worked perfectly, only difference is that I have chosen to drive them using FSBus and in his book, Mike has given controller schematics and his coding for PIC based controllers.

David

[388TH_A]

Confused some, so on the Autopilot MCP the NAV, HDG, ALT, SPD and so on are they on-on push buttons or on-off, Mon on-off, or even on-Mon off ?

Trevor

[RobiD]

Hey Trevor, been a little while since I've been able to post anything. Interesting thing happened last week. I've started building the altitude indicator so I'm using the cnc machine and generating G-code, all that stuff I havent done for a while and I had a catestrophic failure of the two hard discs in my main machine (dual boot, one disc for the sim and the other for the development work) and the hard disc on the machine that controls the cnc machine. Hmm interesting.

I use only monentary switches for MCP, Radio stack etc but use toggle for lights etc and I use some of the actual rocker switches out of a cessna for the battery, alt master, avionics etc.

http://www.futurlec.com.au/Switches/TACT001.jsp

[388TH_A]

Yeah same here been busy with Family, so the Switch use a off and then when you push it its Mon on? So can i use this? http://search.digikey.com/scripts/Dk...041-ND&x=0&y=0 And then today i was thinking about adding a LED over each button so you know when its on.

Trevor

[RobiD]

I have made my own Korry design which has the momentary switch inside at the bottom, I have the 'barrel' part (for want of a better name) seperated into two halve with alfoil (to keep the light seperated) and then I have two leds, green in one half, to know when the switch is turned on the amber in the other to light up the legend. I have used the DIO board digital out to light these up.

From what I can tell of the switch you want to use, it's not a latching switch so it should be straight forward. But you can use a latching switch anyway if you wanted.

David

[388TH_A]

kinda got what your saying but im using a metal box and so i picked thoughs switches because they should fit into the box real well so im hoping. And then i was just thinking about putting one of thoughs kinda dim 5mm LEDs right above each switch.

Trevor

[RobiD]

Ok, time to buy the atmega168's.

Either Stefan or Trevor (or anyone else who knows) is this the right version in DIP package?

http://cgi.ebay.com.au/ws/eBayISAPI....=STRK:MEWAX:IT

Thanks as always.
David

[sgaert]

Yes, they are right.