Alarm panel modifications.

Stoner772

At this stage i don't really know how i want to go about this or if i will ever finish this project like most projects of mine.

But i found this alarm panel at a garage sale a few weeks ago and got it for $5 with sirens cable and a few sensors. From my limited testing it does work but is a very basic device with only a key switch. This thing is a NESS Secuirty 5+ that was made in 1984. Makes it easier to work out what it is doing.
alernatetext

However on the device is a few headers as seen below. It looks like every function of this alarm panel is available on this header. All logic signals are at 12V so i will need some logic level conversion and i will replace the keyswitch with a relay.

alernatetext

So what i am thinking what i will do is maybe put one of the Raspberry PI 1's i have around in there and programming it to use a RFID reader to arm and disarm it and send notifications. Later features i want to add is be able to remotely control it.

I could do something from scratch but i do like reusing old stuff and making it useful again.

Crazy_Muffins

Stoner772 That's rather neat plan actually!

Stoner772

Was going really well until i managed to break the alarm panel. Now to order a new CD4081 for it. Can still order those form Element 14 at least.

I did have the raspberry pi controlling it and detecting the state but then while i was messing around i think i manged to short the AND gate that was in the inputs and now the chip gets really hot and the panel is not working properly.

Stoner772

Went to Element 14 to order about $10 worth of parts. $180 later i have many things coming.

Crazy_Muffins

Stoner772 Least it's fixable! I'm impressed by people who can do this kind of thing! Super keen to see some more results as you go!

Stoner772

I have managed to repair the Alarm panel now i need to get around to writing some code.

Stoner772

And that Panel keeps failing. But while i was at one of my clients i acquired 2 Solution 16 Panels.These are still old but a hell of alot more modern then this thing.
Already wired up the key switch interface to my access controller so i can use an RFID badge to turn it on and off. I have also setup the outputs so i can still interface this one with a raspberry PI as well.

Crazy_Muffins

Stoner772 Progress! Sounds like you're enjoying it as well haha

Stoner772

And of course the new panels are faulty. Ordered new output relays for one of them and new terminal block for the AC in on the other.

Crazy_Muffins

Stoner772 So, quality stuff? XD

Stoner772

Crazy_Muffins Well it is over 20 years old and free so can only expect so much. But better then the 35 years old of the other one.

Crazy_Muffins

Stoner772 This is true! So, what fancy features are you planning on? Bell-End ID ? heh.

Stoner772

Well the RFID Tags are working with it so i can use my implant when i get it installed. In my arm or hand not where you suggest.

Crazy_Muffins

Stoner772 You're still gonna do that? Shudder

Stoner772

I now have both panels working properly. Had to replace the transistor that is driving the Relay.
Now I just need to rig up the Raspberry Pi to it.