Hello,
let me start by thanking Pete for his great work! :-)
I am trying to replace the use of link2fs with lua-scripts. link2fs is great and it works but it seems to be no longer supported and while it finally seems to work with P3D V4 again, sooner or later it might cause problems.
With the help of fess' and other examples online, I've written the following short script to adjust the QNH.
I have verified using the link2fs traffic monitor that the arduino really sends "C25" and "C26" with linefeeds. The "Arduino_Data"-function also gets called, whenever I turn the rotary encoder. But that is as good as it gets. :-/ When I turn the rotary encoder slowly, nothing further happens. No datastring gets shown, nothing happens to the QNH.
With the addition of the 50ms ipc.sleep before the datastring is read, the ipc.controls get executed when I turn the rotary encoder fast enough. (I assume that this happens when the com port buffer holds two Cxx-commands, because the datastring-readout that is shown in these case reads "C25C2", so one character is missing. When I am giving out the string length 'n', it is either 0, 5, 10 or 15. Something seems to quantize the datastring to multiples of 5. When I turn other encoders however, whose command is longer (e.g. "Y010"), n is 0, 6, 12, ...
I've run out of ideas where the error might be and I'd be thankful for every suggetion where to look.
Kind regards from Munich,
Frank
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--- VARIABLE INIT --------------------------------------
feet_per_meter = 3.28083989501312
port_number = "3" -- Change Port Number for your Arduino
speed = 115200
handshake = 0
serial_wait = 20
--------------------------------------------------------
--- SERIAL COMMUNICATION INIT --------------------------
SwitchPanel_Com_Port = com.open("COM"..port_number, speed, handshake)
if SwitchPanel_Com_Port == 0 then
ipc.display("Could not open Switch Panel at Com Port"..port_number,5)
--ipc.exit()
else
ipc.display("Switch Panel connected at Com Port "..port_number,5)
end
ipc.display("SwitchPanel script loaded", 10) -- TEMP
--------------------------------------------------------
--- INPUTS ---------------------------------------------
--------------------------------------------------------
function Arduino_Data(SwitchPanel_Com_Port, datastring, length)
-- the code always gets here
ipc.sleep(50)
datastring = com.read(SwitchPanel_Com_Port,50,1)
ipc.lineDisplay(datastring,-32) -- TEMP
if (string.find(datastring, "C25")) then -- Increase QNH
ipc.control(65883,0)
end
if (string.find(datastring, "C26")) then -- Decrease QNH
ipc.control(65884,0)
end
--ipc.sleep(serial_wait) -- needed???
end
--------------------------------------------------------
--- OUTPUTS --------------------------------------------
--------------------------------------------------------
function call_xpndr (offset, value)
value = string.format("%04x", value)
--ipc.display(value)
com.write (Arduino_Com_Port, "=J"..value)
end
--------------------------------------------------------
--- EVENTS ---------------------------------------------
--------------------------------------------------------
event.com(SwitchPanel_Com_Port, 50,1, "Arduino_Data")
event.offset (0x0354, "UW", "call_xpndr") -- transponder