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Homebrew satellite control system that can run on sBitx


 

Hi!
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More work following the path that Ashhar suggested.? ?I have also bought an older Icom 810H that has full duplex VHF/UHF.
I'm doing initial experiments on Windows PC, but I have already demonstrated full Doppler shift control of sBitx acting as the 10m transceiver to a transverter, so this can all move to the sBitx....
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GPREDICT re-installed due to better location, tracking any satellite I like.? Does all the trig and doppler MATH
RIGCTLD - previously studied and working; receives tcp/ip commands from GPREDIT? to do doppler shift adjustments of sBitx or Icom radio
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Today:
ROTCTLD -- figured out how to run this on a windows machine.? ?Receives trig output of GPREDICT.? ?Converts (in this case) to Yaesu type rotator commands for Az/ elevation and sends out serial port (in my case, COM4, 9600 baud)
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K3NG Rotator Controller -- I havent made a board for this yet.? ?So I took one of my homebrew WINKEYER ARDUINO simulators, and reprogrammed it using K3NG code to "act like" the controller, handling Az, El controls, reading the CW speed control as if it were an azimuth potentiometer; running the display and activating the "key" and "PTT" to rotate clockwise or counterclockwise.
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The reprogramming of my Winkeyer Arduino appeard to be a huge success.? ?I properly set the pins to run the display, which worked FINE.
It was reading the speed pot as an azimuth reading, and if I pushed "buttons" it would read different elevations.
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ROTCLD happily connected to it at 9600 baud, and the "rotator controller" accepted commands and displayed them.? ?I was not able on the first test to monitor whether it activated simulated motor controls (key output, etc) -- but that will come.? ??
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So huge success here and soon (days, weeks?)? I should be able to lay out a board (many others have done so before me, but some just did crazy wiring between variuous "shields")? ?to put all this in a neat little package with relay outputs, possibly with PWM output (dunno)., to control available rotators for real.??
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73
Gordon KX4Z
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