![]() However, it is quite fun to be able to do some "hacking" in the sense of working out how something works, and breaking in to it and doing things it was not designed to do. It is also fun to document how it works, even when it is using a protocol from the last millennium. In fact, in some ways, that is what makes it extra fun as it is nostalgic too. ![]() So, today, I am playing with the Honeywell Galaxy alarm system. You see them everywhere - a very popular system. We use them, and slightly hate them to be honest. Even with full installer access they are impossible to make do some thing sensibly, even though they are actually very flexible. They have some really annoying quirks - like you can disarm the alarm using a key fob (good), but that does not also open the door, you have to use the key fob again to open the door. You can also set the alarm using the key fob (holding it to reader), but that also unlocks the door whilst doing it which may not catch (depending on type of lock). Little things like that just make it that extra bit annoying. However, the actual bits that go with a Galaxy system are not bad - there is the keypad (as per picture) with display, the Max readers which work a door entry system, and RIOs which provide a range on input / output for sensors like reed switches and PIRs.
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