Variable Count down timer Enhancement - *** Virtual Fuel Gauge ***

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Which board (stock / gruvin9x / sky9x / Taranis) are you using?
9XR with M128 chip

What is your openTx FW version?
SVN: opentx-r2834 2013-12-24

What is your openTx EEPROM version?
215-32769

What steps will reproduce the problem?
1. Timer1 set to TH% 
2. Heli Mode idle-up
3. throttle stick down for inverted Heli flight

count down timer dependent on percent of throttle stick; in inverted heli 
flight countdown slows to a stop.

What is the expected output?  
Percentage Countdown timer should continue at full 1 second unites when 
throttle output is at full (even in inverted Heli flight) 

What do you see instead?  As the throttle stick is moved back for inverted heli 
flight the countdown units of time decrease.

Please provide any additional information below.
When choosing variable countdown timer the unit of time decrease/increase 
should be dependent on percentage of throttle curve output instead of 
percentage of throttle stick movement.  

*** Virtual Fuel Gauge ***
This same timer could have display "option" to show percentage of time 
remaining instead of actual time remaining.  For instance;
Timer 1 set for 10 minutes.  Inverted heli-flight for 5 minutes (just an 
example) Timer 1 now shows 50 %  Or Half the time of my original 10 minutes (IE 
50 percent of my fuel is gone).
Place the same bar graph as the "battery display option" and we will have a 
virtual fuel gauge.  It will not matter what type of fuel used.  Set your Th% 
timer to as long as the engine/motor will run at full throttle.

Very nice programming and TX.  I ditched my Futaba 9chp for this rock'n 9xr 
with openTX.  Very good job!  Thanks...
Dwight Martin         guam.haole at gmail.com

Original issue reported on code.google.com by guam.ha...@gmail.com on 9 Jan 2014 at 7:52

[GoogleCodeExporter]

I found that OpenTX variable countdown timer works as expected for inverted 
heli flight.  I just needed to set the T-Source to CH3.  So that is a 
non-issue.  Sorry about that... 

I do think this timer would be better if it displays the percentage of time 
remaining instead of actual minutes and seconds on the main display. Currently 
with a variable count down timer a minutes and seconds display has little 
meaning since most of us do not fly full throttle.  An initial display of 100% 
(time remaining and fuel estimate)makes more sense, easier for people to 
comprehend than actual time (2 minutes remaining is really 4 minutes at half 
throttle).  Thanks again for the great programming.  OpenTX is awesome! 

Original comment by guam.ha...@gmail.com on 10 Jan 2014 at 7:18