MU-2B LVARS - Linda or FSUIPC

[julian46 21]

Has anyone figured out the LVARS for binding lights (TAXI, LANDING, STROBE) and or Fuel / Engine controls to hardware ?

[ark 1,288]

5 hours ago, julian46 said:

Has anyone figured out the LVARS for binding lights (TAXI, LANDING, STROBE) and or Fuel / Engine controls to hardware ?

(L:MU2B_STROBE ,bool)                0 = Off, 1 = On

(L:MU2B_BEACON ,bool)               0 = Off, 1 = On

(L:MU2B_NAV ,bool)                      0 = Off, 1 = On

(L:MU2B_TAXI ,bool)                      0 = Off, 1 = On

(L:MU2B_SWITCH,bool)                Landing light     -1=retracted, 0=extended but Off, 1= On

For the first 4 switch sounds you can use (L:XMLSND71,n) where n = 0 for Off and n=1 for On. 

For the landing light, (L:XMLSND68,n) is the cockpit switch sound and (L:XMLSND67,n) is the motor sound that moves the lights. Again, n=0 for Off and n=1 for On.

In case something in this code might be helpful to you, the following Lua function will start the MU-2 engines provided you first select Ready to Start on the MU2 Control Panel; put condition Levers at Taxi position, and Throttles at Ground Idle. The code puts the props in Start Lock for the start, and takes props out of Start Lock after the start.

function MU2B_Start_Engs()  
  ipc.writeLvar("L:START_LOCK1",99)              -- Start Locks on
  ipc.writeLvar("L:START_LOCK2",99)

--Start Right Engine
  ipc.writeLvar("L:SWITCH_GND_L", 1)             -- Ground start switch to the right engine (note SWITCH_GND_L=1 is for the right engine, there is no SWITCH_GND_R )
  ipc.writeLvar("L:GND_ON_R", 1)
  ipc.writeLvar("L:GND_ON_L", 0)
  ipc.writeLvar("L:NTS_RIGHT",1)                      -- Right Unfeather switch on
  ipc.writeLvar("L:SFE_R",1)                                -- Right Start fuel enrich on,  actually a dummy switch                   
  ipc.sleep (1000)
  ipc.writeLvar("L:C441_STARTER2", 1)            -- Right engine starter switch down
  ipc.sleep (8000)
  ipc.writeLvar("L:C441_STARTER2", 0)            -- Right engine starter switch up
  ipc.writeLvar("L:NTS_RIGHT",0)                      -- Right Unfeather switch off
  ipc.writeLvar("L:SFE_R",0)                               -- Right Start fuel enrich off
-- Gen reset
  ipc.sleep (1000)
  ipc.writeLvar("L:SWITCH_GND_L", 0)             -- Ground start switch to the center
  ipc.writeLvar("L:GND_ON_R", 0)
  ipc.sleep(1000)
  ipc.writeLvar("L:DC_RH",1)                               -- Reset right DC Generator
  ipc.sleep(500)
  ipc.writeLvar("L:DC_RH",0)
  ipc.sleep(2000)

-- Start Left Engine
  ipc.writeLvar("L:SWITCH_GND_L", -1)             -- Ground start switch to the left engine
  ipc.writeLvar("L:GND_ON_L", 1)
  ipc.writeLvar("L:GND_ON_R", 0)
  ipc.writeLvar("L:NTS_LEFT",1)                          -- Left Unfeather switch on
  ipc.writeLvar("L:SFE_L",1)                                 -- Left Start fuel enrich on;  actually a dummy switch
  ipc.sleep (1000)
  ipc.writeLvar("L:C441_STARTER1", 1)            -- Left engine starter switch down
  ipc.sleep (8000)
  ipc.writeLvar("L:C441_STARTER1", 0)            -- Left engine starter switch up
  ipc.writeLvar("L:NTS_LEFT",0)                        -- Left Unfeather switch off
  ipc.writeLvar("L:SFE_L",0)                               -- Left Start fuel enrich off
-- Gen reset
  ipc.sleep (1000)
  ipc.writeLvar("L:SWITCH_GND_L", 0)             -- Ground start switch to the center
  ipc.writeLvar("L:GND_ON_L", 0)
  ipc.writeLvar("L:GND_ON_R", 0)
  ipc.sleep(1000)
  ipc.writeLvar("L:DC_LH",1)                              -- Reset left DC Generator
  ipc.sleep(500)
  ipc.writeLvar("L:DC_LH",0)
--Start Lock Off
  ipc.writeLvar("L:START_LOCK1",50)              -- Start Locks off
  ipc.writeLvar("L:START_LOCK2",50)
  return
end

Al

Edited May 15, 2020 by ark

[julian46 21]

here is my humble start to the MU-2B lua script - if anyone has a more complete one - pls let me know:

if ipcPARAM == 1 then  
  ipc.writeLvar("L:MU2B_SWITCH",1)              -- Land Light On
  return
elseif ipcPARAM == 2 then
  ipc.writeLvar("L:MU2B_SWITCH",-1)             -- Land Light Off
  return
end

I re-read earlier posts and found that in my small example above, now - sending parameter 1 triggers first command (lights on) and parameter 2 (lights off) - so on my way - mainly want to control lights at the point

(also found that ipcPARAM and lua is case sensitive)

hmmm - it moves the levers but the lights do not actually turn on and off - more work to do ...