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Aritech Alarm Internet Dialler
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That is correct - the TX Off state (Arduino not transmitting) is 5V - so with the Arduino missing - the ArdTX to the circuit is 0v - which sends a High 12+ voltage to the panel - this prevents the real keypad from transmitting until the Arduino is replaced (or you connect the circuit ArdTX to 5v).
Attached is my test panel with the breadboard - the yellow Leonardo Led flashes each time a packet is sent (3 or so a second)
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Some good ideas in that - thanks for sharing them - a setup like that should work on any make of alarm panel. I like the idea of the text alerts.
Its kinda similar to the first project I listed here allright - it used one wire to the printer port for monitoring the panel status - but it seems very few panels have this printer port.
The second (4 wire) project gives you full remote access to the panel and engineer menus - lets you set/unset/partset and view the logs etc. I'm using the single diode trick, so no circuit/bread board needed just 2 wires to panel and 2 wires for power
- I found it very useful last week when I was away and put my mind at ease when I could see why the alarm had gone off. ta.
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Dear OZMO,
great project, i love it for enhancing my CD34 panel with internet access!
When using your code, i encountered a problem while compiling it. I received
the following errors:
\arduino_NIEUW\arduino-1.0.2\libraries\CastleRKP\RKP.cpp: In static member function 'static bool RKPClass::loop_PanelMon()':\arduino_NIEUW\arduino-1.0.2\libraries\CastleRKP\RKP.cpp:105: error: 'Serial1' was not declared in this scope\arduino_NIEUW\arduino-1.0.2\libraries\CastleRKP\RKP.cpp: In static member function 'static void RKPClass::SendToPanel(int, bool)':\arduino_NIEUW\arduino-1.0.2\libraries\CastleRKP\RKP.cpp:412: error: 'Serial1' was not declared in this scope\arduino_NIEUW\arduino-1.0.2\libraries\CastleRKP\RKP.cpp: In static member function 'static void RKPClass::Init(byte)':\arduino_NIEUW\arduino-1.0.2\libraries\CastleRKP\RKP.cpp:435: error: 'Serial1' was not declared in this scope
I think something went wrong with the libraries, although i'm not sure what. I'm hoping you're willing to check ;-)
Best regards from the Netherlands!
Christiaan0 -
\arduino_NIEUW\arduino-1.0.2\libraries\CastleRKP\RKP.cpp:435: error: 'Serial1' was not declared in this scope
Hi, thanks for the comments
I only have a couple "Leonardo" arduino here - I believe the "Uno" arduino does not have "Serial1." - Instead "Serial." is connected to pins 0 and 1 instead.
So make sure the Leonardo board is selected in the compiler if you are using a Leonardo
or just rename all "Serial1.xxxx" to "Serial.xxxx" if you are using a UNO- .
ie. just drop the 1.
Good luck - and keep us updated on how you get on with the project...
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hey Ozmo,
You were right about the Arduino Uno, i changed the Serial1.xxx in Serial in the library files.
This did the trick: the system works!! really super. I can connect to my panel online, a CD34 system.
Great you have it working now - Thanks for the feedback - I'll update the code to auto-detect if its an UNO or Arduino being used so this renaming for UNO wont be necessary. “Roll it back”
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Most of the suppliers in the sticky would be able to sort you out.
Thanks. I guess you can remove Peats from that list
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Thanks Ozmo and Usertech321!
I was looking at it today but I don't think I have the engineers code
There is a bunch of documentation on the alarm system but it only offers the default engineers code (0xxxx) which is not valid on my system, so it must have been changed by the installer (And anyway, it would have been stupid not to change it as it's printed in every user's manual)
I notice the installer is still around, I can call them but I don't know if they'd be willing to give it to me, and they'd probably want to talk to the landlord. And I don't really want to bother him, he made it clear he just wants the rent money and no hassle unless it's absolutely necessary. That's also why I wanted to make as little modifications as possible, ideally I'd just like to monitor the system remotely so I know what's going on when I'm not home. I'm hoping to put the raspberry inside the alarm panel, from what I saw online there's loads of free space in there.
Maybe I can let the backup battery run dead when I remove the mains - I notice it's very low anyway. I can't remove the alarm bell before opening the case as there is no exposed wiring.
But the second keypad thing is also interesting, that way I could clear any false alarms remotely. But I think I'll start with the printer port. And you're right Ozmo, the raspberry does not work well with for 'bit banging' protocols, especially ones that require strict timing like you said this one does. Linux is just not a realtime OS. So I think I'll just go with the printer port at first.
I think I'll just use a mains powered interface rather than a 12->5V downconverter, I see the Aritech can only supply 800mA@12V and that's pushing it for a raspberry with Ethernet, even with a very efficient DC-DC converter.
And yes I'm Dutch Usertech321! You too?
PS that 50 pound scope looks amazing, I might get one too0 -
Oh - There is a problem with the latest version of Arduino IDE
Arduino broke some code - even their sample code on the website gives the same errors. (That line thats giving an error - is correct according to the documentation here: http://arduino.cc/en/Reference/ServerAvailable but even their sample code fails to compile...)
I've just checked and my app compiles perfectly on Arduino IDE 1.0.5.
So you could use that version...
You can get 1.0.5 on their site here (you can have both versions installed to different folders without issue):
http://arduino.cc/en/Main/OldSoftwareReleases
I will try get to convert those two lines to the new 1.0.6 and repost to GitHub, but it wont be tonight as I have the spare hardware packed away to test it.
Leonardo hardware works fine.
Those scopes are really good - I use mine a lot - I upgraded the firmware on it to BenF custom firmware - nicer UI and makes it more accurate.
Oh - and you really need the engineer code to do either of these modifications. By default the printer Interface is OFF (Menu called "Event Print") - you need turn it on in the engineering menu. You need to be in Engineer Mode also to enter the "Install RKP" menu to get the panel to recognise the Arduino RemoteKeyPad when you have it hooked up.“Roll it back”
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Oh - and you really need the engineer code to do either of these modifications. By default the printer Interface is OFF (Menu called "Event Print") - you need turn it on in the engineering menu. You need to be in Engineer Mode also to enter the "Install RKP" menu to get the panel to recognise the Arduino RemoteKeyPad when you have it hooked up.
Thanks, that's a shame I looked at the menus but I can't get into any of them. When I enter the code it just straight up arms/disarms. They did provide the programmer's manual and it says this is the case with certain flags so it sounds like intended behaviour. I can't even change the (incorrect) time/date.
Thanks anyway, I'll see if I can find this out somewhere.0 -
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Resetting the code will remove all programming - like the text names for each zone etc. That feature may be disabled as you say anyway.
Thanks!! Luckily it wasn't engineer-locked. I removed the jumper and it was reset to the standard codes (and alarms blaring because I forgot to put some tape over the tamper spring before I turned it back on)
I did indeed have to replace the programming which was nice anyway because there were a few things I always wanted to change. And it's good to know how it works. It wasn't hard to figure out anyway.
But unfortunately, there was no printer option, so there goes that idea I might use your code then and run it on an arduino, or I'll look at the dialler option. But at least I've got full access to the unit now! I'll let you know how I get on. Thanks again for all the help! 0 -
Sorry another question if you don't mind: I notice in one of your comments that the timing on the arduino is very critical. I was wondering what happens if the arduino stops communicating (correctly) on the panel bus. Would that cause a tamper alarm or cause the other panel to start beeping?
I think I'm going with your remote keypad way, however I'm thinking of using a different arduino (trinket, attiny85-based) and then using that to interface to a raspberry pi. That way I can still use the raspberry (which I wanted to have in that area anyway), and I can also take advantage of the more powerful processing for better security (https, VPN etc). And of course the camera. Also, I just happen to have those parts in stock so I don't have to wait
So due to the raspberry not handling realtime tasks well I'm planning to offload that to the arduino, and just passing the i/o back/forth to the pi on a normal async rs232 bus. I think I'll use a logic level shifter for the TTL->12V part, BSS138-based.
But because I have to modify the arduino code pretty heavily for this, I'm afraid what will happen if I make a mistake, my GF wouldn't be happy if some programming messup triggers the alarm while I'm away because it thinks an alarm panel is missing 0 -
GekkePrutser wrote: ».. the timing on the arduino is very critical. I was wondering what happens if the arduino stops communicating (correctly) on the panel bus.
The CD72 especially expects a response very quickly - so in the current version of the code the arduino receives the message and responds with as little processing inbetween -
After it has responded, you have plenty time that you could send the message onto the RPi if you wish especially on the CD34 you have.
Any Arduino should do - just make sure its runs same speed and has same memory as an uno or leonardo - the ones I've tested. Unos are really cheap now at about 6 euros from china.
If the panel misses one message - it wont mind - but after several missed messages in a row (like you've removed the arduino) - yes - you do get a tamper fault if you are not in Engineer mode - and "Remote Keypad Error" gets displayed on the working remote. Entering the user code clears the tamper.
Let me know how you get on with the RPi - I didn't use it because I wasn't sure of the relying on the SD card as a 24/7 server (link).
I'm working on an Intel Galileo board at the moment - still testing how well it will work - its half Arduino half pc on one board - so you can run arduino and also run webservers (python/node.js) in its Linux half of the board at the same time - and both sides communicate with each other fairly easily. Plus its designed in Ireland
Free book all about it here
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Thanks again for the feedback, that sounds a bit worrying though I wish I just had a printer interface as all I really want to do is to monitor it so I know about false alarms etc. But I don't want it to cause one :P
But I'll build it anyway, and get a sense of the reliability when I'm around.
By the way, now that I think of it, perhaps I could just passively monitor the comms between the existing keypad and the panel? If I use a high impedance it shouldn't know I'm snooping. Did you ever try that? If I ever need to arm/disarm I can just use the key contact then.
And yeah the SD card is definitely a liability on the pi, this is also a big reason to have an arduino in between with this kind of real-time stuff going on. Also you need to update it sometimes, and it won't be responding straight away when it comes on.
The new B+ and raspberry 2 models are much better by the way because they don't have a friction-based SD card holder that bends the card over time. But still there is a good chance it will hang/reboot sometimes.
And yes the Galileo is cool! I ordered one when they were giving them away but I didn't make the lottery Maybe I'll get one someday but they are kind of expensive. 0 -
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Hi ozmo,
I'm starting something similar with a HKC SW812 panel and Raspberry Pi but am just reading from the printer output for now using a USB to Serial converter and a perl script running on the Pi. Next step is to emulate a keypad just as you have done you project has given me plenty to think about I've a couple of Arduino clones to make use of Can I ask how you went about figuring out the baud rate and reverse engineered the comms protocol to the keypad?
thanks,
tnegun0 -
Hello everyone,
first of all thanks a lot @ozmo for this project, I appreciate very much your work!
I'm trying to implement your second solution, with the 2 transistors.
The arduino receives perfectly messages from the panel, but the transmission part is not working.
Update:
Hi - I've made the changes asked for.
* Its updated now to compile with the latest Arduino 1.63 (from arduino.cc)
* Its tested with IE11, Chrome on Windows and on IPhone Safari and Chrome on my test CD34.
* Easier installation - no library needed anymore - just place all the files in the one folder and open the .ino file (see the attached screenshot for what it will look like)
* No hardware changes needed
* Ive tested on Leonardo and UNO Arduinos - when running, both are functionally the same.
- But Leonardo is best for debugging as there are 2 serial ports - one for panel connection and one for PC Arduino IDE connection and debugging.
With UNO you need disconnect from Alarm panel while uploading software and debug logs are not currently possible.
All the code is in GitHub (link)
@nicom: Can you try the latest version of the software if you are having problems. Maybe also have another check of the wiring also - could be a bad transistor.
@tnegun Re: HKC SW812 -
Be interested in seeing how far you get with a RPi -
To determine the baud rate I looked at the chip specs and tried all it supported - you can use this method to get close if you have a scope.
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Thanks Ozmo I've access to an old scope I'll see if I can figure anything out from it. I've an 812 Panel without Keypad though in Dublin/Kildare I'd happy donate if you want it?
Cool thanks any donations of hardware most welcome - and Ill update the thread with the possibility of using this project with these other alarm panels. “Roll it back”
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Thanks tnegun for the HKC 812 SecureWatch panel !
The HKC has a lot of similarities with the Aritech panel - but the protocol used is very different.
I have made some progress on it: I was able to capture the panel comms and have figured out much of the protocol. I am currently reading the data off the line - next step is to get the hardware in place for an Arduino to send some messages to the panel and see if the Arduino can be accepted as a keypad.
Hopefully this will mean the Aritech Internet Keypad Project can be made to support HKC as well.
Ill leave my findings here (in the docs folder) and update as I figure out more.
https://github.com/OzmoOzmo/CastleHKCArduinoRKP “Roll it back”
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Thanks tnegun for the HKC 812 SecureWatch panel !
The HKC has a lot of similarities with the Aritech panel - but the protocol used is very different.
I have made some progress on it: I was able to capture the panel comms and have figured out much of the protocol. I am currently reading the data off the line - next step is to get the hardware in place for an Arduino to send some messages to the panel and see if the Arduino can be accepted as a keypad.
Hopefully this will mean the Aritech Internet Keypad Project can be made to support HKC as well.
Ill leave my findings here (in the docs folder) and update as I figure out more.
https://github.com/OzmoOzmo/CastleHKCArduinoRKP
Yea the hardware designs were done by the same guys as far as I know...
How reliable is anyone finding the arduino Ethernet shield, always find them a bit hit and miss?0 -
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If you need a keypad for the HKC just let me know as have a load floating around here 0
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Thanks to Altor for the HKC keypad (and the Astec) - Much appreciated.
So an update - made very good progress with the HKC Securewatch SW8/12 panel.
I was able to code my arduino to emulate a hkc keypad, attaching to the panel and listening and sending data.
Running an Add keypad scan - the Arduino is now passing itself off as if a second regular HKC keypad is attached. yay!
And I am able to send key presses to the panel.
So bit of tiding up to do - a few more buttons to the web page - hook up the Ethernet card again and lots of testing to do- but so far its gone very well
For anyone interested in details - here some info on how a part of it works (see attached).
The serial protocol used is kinda unusual - ~1650 baud(varies a little bit) - 3 wire (+12 0v power and one shared data wire: 0v idle, 0v=1 12v=0 logic). Its 9 bit data - with 9th bit set to indicating the first byte of the message. This posed some problems as the standard Arduino Libraries are 8bit.
I got to use a new bit of hardware I acquired - a logic probe - you can see the scan it produces attached(the decode message is above the traces) - top trace is what the panel sees - middle is what the keypad is outputting - bottom is what my Arduino keypad is saying (when I have got it right - the arduino trace should match exactly the middle trace).
There are several type of messages - In this case its a message from the keypad to the panel responding to the request if anyone has pressed any keys..
(Byte0 is the keypad - byte 1 is showing command 0 (there are about 6 commands like display this etc.) - byte 2..4 are up to three keys pressed(you can see FF - that's no key pressed)..last byte is a checksum.
Electrically - I'm using the very same two transistor board I made for the Aritech except a couple resistor substitutions as more power is needed to transmit on this system and the PanelRX and PanelTX are connected together - HKC transmits and receives on the one wire.
Ill keep you posted...“Roll it back”
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Thanks to Altor for the HKC keypad (and the Astec) - Much appreciated.
Glad I could help Have you looked at the Astec system yet? 0 -
Glad I could help Have you looked at the Astec system yet?
I did thanks - and the hardware might be a little too weird to do that one though. The signal and power share the only two wires - this would make any keypad emulator more complex to make compatible electronics wise. I will keep it mind though once I finish the hkc though. cheers.“Roll it back”
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I did thanks - and the hardware might be a little too weird to do that one though. The signal and power share the only two wires - this would make any keypad emulator more complex to make compatible electronics wise. I will keep it mind though once I finish the hkc though. cheers.
Yeah its a two wire system, with all the good work you have done with the other systems this should be a welcome challenge 0 -
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DublinDilbert wrote: »My plan over the summer is to port the c++ code onto a beagle bone and design a 3.3v level shifter.
Sounds great let me know how you get on. “Roll it back”
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