Data Format Question

How is the data that is sent over the serial connection to my simulator formatted? I have everything set up, but right now I just have my arduino uno handing out bytes arbitrarily to my servos, causing them to twitch randomly. So, I need to know how the sim data is sent so I can properly process it and send it to the right arduino. Any help with this?

I show an example here mate, http://www.xsimulator.net/community/threads/rc-model-for-motion-simulation.4600/

So, the first character read indicates which servo to move, with the following 3 being the angle I give to that servo?

I don’t know much about arduino coding, but the serial data out of simtools is formatted exactly how you tell it to be sent out. I believe a member has posted an app here somewhere that will allow you to see the strings of data that simtools is sending out to analyze them. I think there is a link in resources if I recall correctly. Yes, here it is http://www.xsimulator.net/community/marketplace/gameengine-output-testing-tool.88/

Ok the next 3 is a value that is sent by simtools that correlates the axis assignment that you have set and outputs them mapped to a bit rate that you have set in interface settings, like the above code will send a value of 0 - 255 then this is mapped within the Ard to 0-180 which is formatted into a deg so the Ard knows what angle to set the servo at. Nice and simple.

Yes, i have a problem with my servos: they work great to the right, they become crazy to the left. and i have found why:

Simtools sends R255 for +100% axis testing bar( my config is R from Roll for axis1)
Sends R127 for the 0% position ( 90 degrees )
And Sends R0 for the -100% axis testing bar

The problem comes when you put the bar at -18%, so the valur comes from R100 to R99

When the value is R99, the servo comes crazy, cause there is a lack of a character. What we need is a line for the code that adds that exception and teaches the ard to read values <R100

I'm completly newbie on programming, i've been in this 1 week i've learn all until now via reverse ingeniering

With my servo code it I use a ~ as an end of command is reached to compute the value.
IE the Ard reads in at one value at a time, so R99~ reads in as R , code recognizes it now has a value for R Servo coming next so it then captures the next value 9, stores that and checks for another , if another is present it times the previous value by 10 so now its 90 and then reads the next value which is 9 and then adds them together to get 99 then carries on to read the next value and if its a ~ it knows to stop and use that value 99 to send to the servos after it remaps that value to 0-179 to get a degree for the servos and then sets its position before reading the next char and so on it goes.

Then only issue it can have is timing sometimes requiring a slower baud rate depending on how fast or slow you are sending the data to it.

I was using 115200 bauds. I changed it to 9600 and worked fine