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FrankP

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About FrankP

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    Male
  • Location
    Munich, Germany
  • Interests
    Aviation, Flight Sim Pits
  1. Hello Pete, hello Chris, many thanks for both your replies. They helped me a lot to understand which assumed unknown unknowns don't exist and pointed me into the right direction. I've thus been able to find a simple solution. I've simply added 2500ms delay after the serial communication has been initiated. That alone does the trick. The arduino needs around 2200 ms to boot. 300ms later the data from sent via the lua script kicks in and everythink works like a charm. Here the relevant portion of the code in case anyone has the same problem. Arduino_Com_Port = com.open("COM"..port_number, speed, handshake) if Arduino_Com_Port == 0 then ipc.display("Could not connect to Switch Panel at COM"..port_number,10) ipc.exit() else ipc.display("Switch Panel connected at COM"..port_number, 1, 3) ipc.sleep(2500) end Best regards, Frank
  2. Hello, I am working on a panel, which is based on an Arduino which is connected to some input and output elements. When I start the lua script, it takes some time to connect to / boot the arduino. (The arduino has an LCD display attached to it acting as a cockpit watch and the display always goes black for a couple of seconds before lighting up again.) Through ipc.display, I can see, that all the parameters sent to the Arduino are initiated. But somehow the Arduino isn't ready yet, when they are send. As an effect, it isn't until the values change, that they are shown (resent) to the Arduino. Is there a way to initiate the values correctly? Many Thanks, Frank
  3. Hello Pete, thank you so much!!! 0: linefeeds - I don't quite know to be honest, but: 1: This not only made my day, it made my week-end! :-) I deleted the com.read-statement and it works like a charm. 2: Changed to 5, thanks! 3: Some of my rotary encoder, that I will add to the code, send multiple commands per dent when they are turned fast enough. For those, I include the suggested loop: 4: done Thanks a lot, Frank
  4. 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 -------------------------------------------------------- --- 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
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