Batt Warning Light - Reset on Battery Switch

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warbirdguy1
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Batt Warning Light - Reset on Battery Switch

#1 Post by warbirdguy1 » Sat May 01, 2021 1:19 am

Hey all I am starting to work on some LED caution panel for a project I am working on.

---On the real aircraft

The Battery Warning light comes on when the Battery is no longer charging (failed charging system or the generator is not on).

If the charging system kicks back on the Battery Warning light will only turn off if the Battery Switch is reset.

--In my code

The Battery Warning light turns on when the charging system fails or the generator is off which is correct.

My problem is that the light goes out as soon as the charging system is restored.

How can I make a condition where the Battery Warning LED can only turn off if the Battery Switch is cycled once the charging system is restored?

See below for my current code. Thanks in advance!

-----

Code: Select all


led_is_charging = hw_led_add("Arduino_MEGA_2560_A_D13",0)

function num(bool)
if bool then return 1 else return 0 end
end

function is_charging(charging)
    hw_led_set(led_is_charging, 1-num(charging))
end

fsx_variable_subscribe("ELECTRICAL BATTERY IS CHARGING", "Bool", is_charging)

"I know just enough to break something"

JackZ
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Joined: Mon Feb 22, 2016 1:02 pm

Re: Batt Warning Light - Reset on Battery Switch

#2 Post by JackZ » Mon May 03, 2021 12:56 pm

Hi

Without more information(addon used, type of airplane, for the sim platform I assume it’s FSX), it’s gonna be difficult to help, but from what I see, the answer is in part in the question.

You are only subscribing to the ELECTRICAL BATTERY IS CHARGING state. But the annunciator BATTERY WARNING LIGHT is not linked to this! It is usually related to a minimum battery voltage.

The battery bus is usually used at startup and during emergency when the generators are non longer generating voltage.
When the battery voltage is below a certain value, then the charging system automatically kicks in, unless the generator is not working (engines off, or generators turned off).

After startup this annunciator should light up for a brief moment until the battery is fully replenished (batt voltage above a certain voltage).
If the charging system fails the battery voltage will not raise to its charged level and the warning light comes on again.

So I would rather use the « battery voltage » as a trigger, along with a « generator are on » surveillance as a criteria for turning on the light.
But once again, without further information, it is difficult

Jacques
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jph
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Re: Batt Warning Light - Reset on Battery Switch

#3 Post by jph » Tue May 04, 2021 9:36 am

Agree with Jacques 100%

Out of interest and just as a guide , you can also reduce your existing code to -

Code: Select all

led_is_charging = hw_led_add("Arduino_MEGA_2560_A_D13",0)
function is_charging(charging)
    hw_led_set(led_is_charging,(charging)) 
end
fsx_variable_subscribe("ELECTRICAL BATTERY IS CHARGING", "Bool", is_charging)
Providing the led is supposed to illuminate when charging. ?
Joe
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JackZ
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Re: Batt Warning Light - Reset on Battery Switch

#4 Post by JackZ » Sat May 08, 2021 12:14 pm

Nearly one week from the initial message of the OP & no reply from him/her. Typical. :x
Sometimes one wonders why spend time to help people like this one. Lesson learnt.

Jacques
My YouTube Chanel on the A320 (Real SOPs by an Airline Pilot IRL):
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jph
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Re: Batt Warning Light - Reset on Battery Switch

#5 Post by jph » Sat May 08, 2021 1:12 pm

JackZ wrote:
Sat May 08, 2021 12:14 pm
Nearly one week from the initial message of the OP & no reply from him/her. Typical. :x
Sometimes one wonders why spend time to help people like this one. Lesson learnt.

Jacques
Jacques
It is Fecking annoying !.
I agree, It makes one pissed off. Perhaps we need a section where people with a few posts can only post in ? - I know, I know, it is difficult, and I don't know the answer. :cry:
But..............
“Everything in moderation, including moderation.”
“Experience is merely the name men gave to their mistakes.”
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Sling
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Re: Batt Warning Light - Reset on Battery Switch

#6 Post by Sling » Sat May 08, 2021 2:06 pm

jph wrote:
Sat May 08, 2021 1:12 pm
Jacques
Perhaps we need a section where people with a few posts can only post in ? - I know, I know, it is difficult, and I don't know the answer. :cry:
But..............
I proposed something like this to help with the spamming issue quite recently and some of you didn’t like it. Other forums do it in varying different ways. Anyone been through the FSE registration process will know what a pain that is. No perfect answer but something a little different might be worth a trial.

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Keith Baxter
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Re: Batt Warning Light - Reset on Battery Switch

#7 Post by Keith Baxter » Sat May 08, 2021 2:49 pm

Hi

I have a different view... :evil:

The OP posted his first post on...
Post by warbirdguy1 » Sat May 01, 2021 3:19 am

The first response was a few days later.,...
by JackZ » Mon May 03, 2021 2:56 pm


If it was me posting here for the first time waiting all this time for some help. Would you return???

Looks like the OP was quite resilient and did, and now is accessing advice given

And was last on line on the ....
Last active:Fri May 07, 2021 11:15 pm

We all to often take things for granted and do not look in the mirror.

I sure hope that we all reconsider how new members are treated and stop taking digs and cheep swipes at them. Most come here for advise and guidance expecting some warm fuzzies. Lets provide that to all the new members and keep the cold pricklies off this forum.

My 2p

Keith

EDIT: I see the OP was online at "Last active:Sat May 08, 2021 5:25 pm" soon after I posted. Hopefully he takes heart and reverts to us.
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warbirdguy1
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Re: Batt Warning Light - Reset on Battery Switch

#8 Post by warbirdguy1 » Sun May 09, 2021 2:29 pm

Some of us have jobs and do not dedicate all our spare time to making our fake airplanes fly...No shocker if we are not sitting at our PC on every lunch break ready to engage with every new reply.

Thanks for those who provided constructive feedback.
"I know just enough to break something"

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warbirdguy1
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Location: United States

Re: Batt Warning Light - Reset on Battery Switch

#9 Post by warbirdguy1 » Sun May 09, 2021 2:48 pm

jph wrote:
Tue May 04, 2021 9:36 am
Agree with Jacques 100%

Out of interest and just as a guide , you can also reduce your existing code to -

Code: Select all

led_is_charging = hw_led_add("Arduino_MEGA_2560_A_D13",0)
function is_charging(charging)
    hw_led_set(led_is_charging,(charging)) 
end
fsx_variable_subscribe("ELECTRICAL BATTERY IS CHARGING", "Bool", is_charging)
Providing the led is supposed to illuminate when charging. ?
Joe
The light in this particular case only illuminates if the battery is not charging.

Here is my current code but it is not working. Still trying to figure out what I am missing here.

My problem resides with the is_charging and is_batt_sw since I only desire the Battery Warning light to extinguish when the switch is cycled off and on.

Code: Select all

led_is_charging = hw_led_add("Arduino_MEGA_2560_A_D13",0)
led_is_alt1charging = hw_led_add("Arduino_MEGA_2560_A_D12",0)
led_is_alt2charging = hw_led_add("Arduino_MEGA_2560_A_D11",0)

function num(bool)
if bool then return 1 else return 0 end
end

function is_charging(charging) and is_batt_sw(batt_sw)
    if charging == 1 then
    hw_led_set(led_is_charging, 1)
    elseif
    if charging == 0 and batt_sw == 0 then
    hw_led_set(led_is_charging, 0)
end
  
function is_alt1charging(alt1charging)
    hw_led_set(led_is_alt1charging, 1-num(alt1charging))
end

function is_alt2charging(alt2charging)
    hw_led_set(led_is_alt2charging, 1-num(alt2charging))
end

fsx_variable_subscribe("ELECTRICAL MASTER BATTERY", "Bool", is_batt_sw)
fsx_variable_subscribe("ELECTRICAL BATTERY IS CHARGING", "Bool", is_charging)
fsx_variable_subscribe("GENERAL ENG GENERATOR ACTIVE:1", "Bool", is_alt1charging)
fsx_variable_subscribe("GENERAL ENG GENERATOR ACTIVE:2", "Bool", is_alt2charging)

"I know just enough to break something"

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Ralph
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Re: Batt Warning Light - Reset on Battery Switch

#10 Post by Ralph » Sun May 09, 2021 3:02 pm

I don't think this rather bold reply from you is gonna spark much joy for others to help you. Just saying...

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