OPEN TX LUA SCRIPT

[erwabo]

I CANNOT figure this out. I want this tiny piece of tx-voltage script work in my LUA script. It works fine by itself but it will NOT work when I place it in the script below the dashed line. Please help! Im on version 2.1.9

local function run()
local v = getValue("tx-voltage")
print ("tx-voltage: "..v)
lcd.clear()
lcd.drawText(155,55, "tx-voltage: "..v)
return 0
end
------------------------------------------------------------------------------------------
--[[ GLow Fuel - Fuel Guage
by Eric Bojonell
Version 1.0 - 20 January 2017

]]



local function getTelemetryId(name)
field = getFieldInfo(name)
if field then
return field.id
else
return -1
end
end

local function getValueOrDefault(value)
local tmp = getValue(value)

if tmp == nil then
return 0
end

return tmp
end



local function init()
ver = getVersion()
if ver>="2.1.0" then
A2 = getTelemetryId("A2")
A1 = getTelemetryId("A1")

else
A2 = getFieldInfo(A2).id
A1 = getFieldInfo(A1).id

end



end




local function run(event)

local v = getValueOrDefault("tx-voltage")
print ("tx-voltage: "..v)
local r = getValueOrDefault("rssi")
print ("rssi: "..r)
lcd.drawText(145,55, "tx: "..v.." rssi: "..r)



----------------------------------------
-- GAUGE VARIBLES;
----------------------------------------


local x1 = 37
local y1 = 40
local angle
local x2
local y2
lcd.clear()

----------------------------------------
-- LINES;
----------------------------------------


lcd.drawLine(67,8,67,58, SOLID, 0)
lcd.drawLine(130,8,130,58, SOLID, 0)

----------------------------------------
-- TIMER;
----------------------------------------

local timer = model.getTimer(0)
lcd.drawTimer(95, 5, timer.value, MIDSIZE)
lcd.drawPixmap(75, 6, "/SCRIPTS/TELEMETRY/IMAGES/timer.bmp")

----------------------------------------
-- CLOCK;
----------------------------------------


lcd.drawTimer(95, 23, getValueOrDefault(190), LEFT+MIDSIZE)
lcd.drawPixmap(75, 23, "/SCRIPTS/TELEMETRY/IMAGES/clock.bmp")

----------------------------------------
-- RATE MODE;
----------------------------------------



lcd.drawPixmap(75, 44, "/SCRIPTS/TELEMETRY/IMAGES/fm.bmp")
if getValueOrDefault(94) > 0 and getValueOrDefault(97) < 0 then
lcd.drawText(97, 48, "LOW", SMLSIZE)
else
if getValueOrDefault(97) == 0 and getValueOrDefault(97) < 0 then
lcd.drawText(97, 48, "MED", SMLSIZE)
else
if getValueOrDefault(94) < 0 and getValueOrDefault(97) < 0 then
lcd.drawText(97, 48, "HIGH", SMLSIZE)
else
lcd.drawText(97, 48, "MAN", SMLSIZE)
end
end
end
----------------------------------------
-- FUEL;
----------------------------------------
--lcd.drawText(165, 55, "FUEL", SMLSIZE)
lcd.drawPixmap(135,2, "/SCRIPTS/TELEMETRY/IMAGES/fuel-gauge.bmp")


x1=172
for i=0, 10 do

angle = math.rad(((17*i)-180))
x2 = 25 * math.cos(angle) + x1
y2 = 25 * math.sin(angle) + y1

end

local FuelVoltage = getValueOrDefault("A2")--get sensor voltage

-- Draw indicator

angle = math.rad((FuelVoltage*17)-180)
x2 = 27 * math.cos(angle) + x1
y2 = 27 * math.sin(angle) + y1
lcd.drawLine(x1, y1, x2, y2, SOLID, 0)--GREY_DEFAULT)


----------------------------------------
-- RSSI;
----------------------------------------
local percent = 0

local CurrentRSSI = getValueOrDefault("RSSI")


if CurrentRSSI > 90 then
lcd.drawPixmap(35, 1, "/SCRIPTS/TELEMETRY/IMAGES/RSSIh10.bmp")
elseif CurrentRSSI > 80 then
lcd.drawPixmap( 35, 1, "/SCRIPTS/TELEMETRY/IMAGES/RSSIh09.bmp")
elseif CurrentRSSI > 70 then
lcd.drawPixmap( 35, 1, "/SCRIPTS/TELEMETRY/IMAGES/RSSIh08.bmp")
elseif CurrentRSSI > 60 then
lcd.drawPixmap( 35, 1, "/SCRIPTS/TELEMETRY/IMAGES/RSSIh07.bmp")
elseif CurrentRSSI > 50 then
lcd.drawPixmap( 35, 1, "/SCRIPTS/TELEMETRY/IMAGES/RSSIh06.bmp")
elseif CurrentRSSI > 40 then
lcd.drawPixmap( 35, 1, "/SCRIPTS/TELEMETRY/IMAGES/RSSIh05.bmp")
elseif CurrentRSSI > 30 then
lcd.drawPixmap( 35, 1, "/SCRIPTS/TELEMETRY/IMAGES/RSSIh04.bmp")
elseif CurrentRSSI > 20 then
lcd.drawPixmap( 35, 1, "/SCRIPTS/TELEMETRY/IMAGES/RSSIh03.bmp")
elseif CurrentRSSI > 10 then
lcd.drawPixmap( 35, 1, "/SCRIPTS/TELEMETRY/IMAGES/RSSIh02.bmp")
elseif CurrentRSSI > 0 then
lcd.drawPixmap(35, 1, "/SCRIPTS/TELEMETRY/IMAGES/RSSIh01.bmp")
else
lcd.drawPixmap( 35, 1, "/SCRIPTS/TELEMETRY/IMAGES/RSSIh07.bmp")

end


lcd.drawChannel( 46, 55, "RSSI", SMLSIZE)


----------------------------------------
-- Battery;
----------------------------------------

local myCurrent = getValueOrDefault("A1")
local myMaxV = 5.2
local myMinV = 4.0
local myRangeV = myMaxV - myMinV
local myAvailV = myCurrent - myMinV
local myPercent = math.floor(myAvailV / myRangeV * 100)

if myAvailV < 0 then myAvailV = 0 end
if myPercent < 0 then myPercent = 0 end
if myPercent > 100 then myPercent = 100 end

local myPxHeight = math.floor(myPercent * 0.37)
local myPxY = 11 + 37 - myPxHeight

lcd.drawPixmap(10, 1, "/SCRIPTS/TELEMETRY/IMAGES/batteryh.bmp")

if myPercent > 0 then
lcd.drawFilledRectangle(13, myPxY, 09, myPxHeight, FILL_WHITE )
end


local i = 36
while (i > 0) do
lcd.drawLine( 14, 10 + i, 20, 10 + i, SOLID, GREY_DEFAULT)
i= i-2
end

if (myCurrent > myMaxV) or (myCurrent < myMinV) then
lcd.drawChannel( 10, 55, "A1" ,PREC1 + LEFT + SMLSIZE)
else
lcd.drawChannel( 10,55, "A1" ,PREC1 + LEFT + SMLSIZE)
end


end
return { run=run, init=init}

[rcdiy]

local v = getValue("tx-voltage")
local v = getValueOrDefault("tx-voltage")

[erwabo]

OMG...wow, missed that one. THANKS!! I was messing with that for a couple hours getting really ticked!

[rcdiy]

OMG...wow, missed that one. THANKS!! I was messing with that for a couple hours getting really ticked!

I was wondering. Even tried executing the code:)

[erwabo]

Yes, but I was using one or the other with the two variables you posted. I knew it was something to do with that but I never thought to put both of them in the script together. As soon as I put them both in, it worked, but I don't understand 100% why it works since I'm still very new to LUA

[rcdiy]

oops.... no... I made a mistake.... have to look again...

[rcdiy]

Okay. this is what I have.

local v = getValueOrDefault("RxBt")
print ("tx-voltage: "..v)
local r = getValueOrDefault("RSSI")
print ("rssi: "..r)
lcd.drawText(145,55, "tx: "..v.." rssi: "..r)

tx-voltage: 5.1999998092651
rssi: 75
tx-voltage: 5.1999998092651
rssi: 75
tx-voltage: 5.1999998092651
rssi: 75
tx-voltage: 5.1999998092651
rssi: 75
tx-voltage: 5.1999998092651
rssi: 75

So your code AS IS works... all I did was change the sensor names to match something I have and then changed values in the simulator....
So your code is correct I think...

I spent forever trying to simulate using a new blank model and nothing worked, even my own scripts.... then remembered and used an existing model that I had bound to an Rx....

[erwabo]

Well this piece always worked by itself :

local v = getValueOrDefault("tx-voltage")
print ("tx-voltage: "..v)
lcd.clear()
lcd.drawText(155,55, "tx-voltage: "..v)

As soo as I added it to my script, it would NOT work...but then I added BOTH "local v" as you posted and it worked, I had to set it up like this:

local v = getValueOrDefault("tx-voltage")
local v = getValue("tx-voltage")
print ("tx-voltage: "..v)
lcd.clear()
lcd.drawText(155,55, "tx-voltage: "..v)

[rcdiy]

the second v replaces the first in which case your nill check won't work...

just for kicks try
local function getValueOrDefault(value)
return = getValue(value)
end


Your code as is works for me.... something else may be going on... I tested using the companion 1.9 simulator.

[erwabo]

Yeah it works now that I have it like this :

----------------------------------------
-- GAUGE VARIBLES;
----------------------------------------


local x1 = 37
local y1 = 35
local angle
local x2
local y2
lcd.clear()
local v = getValueOrDefault("tx-voltage")


I tried this before and it wasn't working, not sure why its working now LOL...so if you have 2 "local v" variables in there, the 2nd one would override the first one? Is that correct?

[rcdiy]

I tried this before and it wasn't working, not sure why its working now LOL...so if you have 2 "local v" variables in there, the 2nd one would override the first one? Is that correct?

Yup
local v =10
local v =2
print(v)

[erwabo]

I think that was my problem then...I had them both in there and I had the wrong one second so it over wrote the correct one I have set for my nil. Man, such an easy fix to a frustrating issue. Always that way with code. Thanks for the help