From Newsgroup: uk.d-i-y

On 12/02/2026 16:38, Andy Burns wrote:

Andy Burns wrote:

OK, I found them, will upload somewhere ...

<http://andyburns.uk/Galaxy/Galaxy.zip>

It's basically all the Honeywell/Galaxy/Flex documents I could lay my
hands on while I was preparing to install ...

How far have you got with your ESP32 interface?

Firstly sorry for the delay in responding and a massive thank you for
sending these Andy I will take a look through them over the weekend.

I have tested the ESP32 using the header pins to detect the alarm
trigger and it seems to work fine. Powering it from a separate power
supply for the tests. In the meantime I have built out the software so
now have a mobile app to manage alerts / control it/ alert user etc. as
well as all the user management to enable multiple users, multiple
detectors etc. The ESP32 also fails back to the mobile network should
the internet be down etc. Whilst I built this for my own use/
enjoyment, although not my original intent it is probably close to being something I could sell to others. Wonder what the market is like :)

Once I get it up and running I might look at interfacing with the other
header pins particularly on marked as "set" in the documentation so
wondering if that enables remote set/ reset or maybe just triggers when
the alarm is set by the user.

Many thanks again

Lee.
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From Newsgroup: uk.d-i-y

On 15/02/2026 13:22, Andy Burns wrote:

Lee Nowell wrote:

The alarm has a general aux power supply which seems to have a max of
500mA

The G2-44+ has a 1.4A PSU, or have you seen something that says 500mA is "spare"

I got it from the installation manual (https://www.manualslib.com/manual/1122176/Honeywell-Galaxy-2-Series.html)

If I am reading this correctly page 17 of the manual (page 31 of the
pdf) says the power supply (I believe to the +12v on the header) is
100mA which is fused by the AUX FUSE F2 which according to the diagram
on page 105 (119 of the pdf) F2 is 500mA. Now having said that, when searching for it now, page 31 (45 of the pdf) it says F2 is 1.6A
although says "battery" so not sure what that is referring to.
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From Newsgroup: uk.d-i-y

On 19/02/2026 22:05, Lee Nowell wrote:

On 12/02/2026 16:38, Andy Burns wrote:

Andy Burns wrote:

OK, I found them, will upload somewhere ...

<http://andyburns.uk/Galaxy/Galaxy.zip>

It's basically all the Honeywell/Galaxy/Flex documents I could lay my
hands on while I was preparing to install ...

How far have you got with your ESP32 interface?

Firstly sorry for the delay in responding and a massive thank you for sending these Andy I will take a look through them over the weekend.

I have tested the ESP32 using the header pins to detect the alarm
trigger and it seems to work fine. Powering it from a separate power
supply for the tests.-a In the meantime I have built out the software so
now have a mobile app to manage alerts / control it/ alert user etc. as
well as all the user management to enable multiple users, multiple
detectors etc.-a The ESP32 also fails back to the mobile network should
the internet be down etc.-a Whilst I built this for my own use/
enjoyment, although not my original intent it is probably close to being something I could sell to others.-a Wonder what the market is like :)

Bravo!
True D-i-y

Once I get it up and running I might look at interfacing with the other header pins particularly on marked as "set" in the documentation so wondering if that enables remote set/ reset or maybe just triggers when
the alarm is set by the user.

Many thanks again

Lee.

--
"If you donrCOt read the news paper, you are un-informed. If you read the
news paper, you are mis-informed."

Mark Twain

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