Dsc Serial Protocol

Posted on 12/19/2017by admin

Well, I've just finished integrating smartthings with my DSC Alarm system via an Arduino Shield. That was quite a project, but it's well worth it. I changed a little bit the code from obycode to make it more responsive. I significantly increased the baud rate from 9600 over the RS-232 serial port (I haven't seen this kind of port since the late '80!). I implemented system status checks in the driver to be able to report any error messages up to the Smartthings UI. For example, if I have a wireless sensor's low battery error, I will able to see it in Smartthings.

Thnx to all previous developers who made that system integration much easier to bear (amongst others: obycode and vassilis) Now, I can use all my wired and wireless sensors for my future home automation projects! During the integration process, I encountered some Smartthings UI issues related to sensors' updates (android 4.4). I submitted the issue to support. Still waiting for an answer. Well, if you mean the pc 1832, than it should be compatible as specified in this thread: Hey guys, I'm about to get a nice little smartthings setup. I wish to use DSCalarmSmartthings to interface with my alarm.

Could anyone who got this to work make a guide? Specifically the part of putting the smartthings shield, the rs232, Arduino mega, and the it-100 together? I can upload basic libraries and Arduino code, but I have no idea about this whole pin thing (in the readme.md) Yes, I do have an arduino mega protoshield. Cart: SmartHub IT-100 Arduino MEGA mega protoshield S.

Jcommisso: Hi, I have an old Powerseries 832 (PC5010) that I would like to do this with. I chose this way because I don't want to run anything on my computer and I have some experience with Arduino. I have a few questions. How easy was this project? Not easy, on a scale from 1-10 (most difficult), I'd say at least 9.

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Eh, no pain, no gain. If you have previous experience with Arduino, then it's a 7.

Do you get all your motion sensors and door sensors individually in Smartthings? Yes Can you control sirens? Yes See this thread. Hey guys, I'm about to get a nice little smartthings setup. I wish to use DSCalarmSmartthings to interface with my alarm.

I am walking through this setup and I am having some trouble. It seems I have everything connected and installed as specified. I can see the system in SmartThings. I can click on any of the alarm buttons or refresh and the RS232 TX and RX lights flash briefly. It seems all of that is stacked and programmed correctly. I then have the Null modem RS232 cable connecting the RS232 board to the IT100.

The IT100 is connected to the alarm panel. I have redone this part 4 times now. The IT 100 has a green light that continuously flashes. No other lights seem to light up. When I press a button in Smart Things when it makes the RX and TX lights flash on the RS232 board, it does not change the lights/make them flash differently then the continuous steady green flash.

My conclusion is that something is up between the IT 100 and the DSC 5010 panel. Again, I have checked the wires several times and it seems it is connected, but does anyone have any suggestions for me?

This integration is very difficult to debug remotely as there are many parts that can go wrong. You need to check if you receive anything from the IT-100 using the Serial Monitor.

Hey guys, I'm about to get a nice little smartthings setup. I wish to use DSCalarmSmartthings to interface with my alarm. Could anyone who got this to work make a guide? Specifically the part of putting the smartthings shield, the rs232, Arduino mega, and the it-100 together? I can upload basic libraries and Arduino code, but I have no idea about this whole pin thing (in the readme.md) Yes, I do have an arduino mega protoshield. Cart: SmartHub IT-100 Arduino MEGA mega protoshield Smartthings shield Rs232 shield A dsc alarm system. My trusty custom build pc.

The interwebz. Source of confusion: Read the readme.md.

I did miss that thread. Your comments here and that thread was helpful. My issue was the RS232 required 19200. Also, my RS232 shield is a combo and includes RS485.

I missed the switch as it defaulted to RS485. Also, this RS232 board had a switch between UART and Softserial. It was on SoftSerial.

I switched it to UART. These three combined fixed the communication issues. I can now arm/disarm and see the status of the system. I spent a lot of time understanding the code and can see each of my 8 zones work in the 'recently' under the Home Security Thing.

What isn't working is setting up each zone as its own thing. I'll keep reading/re-reading to understand where I am in error.

Right now, each thing that comes in through the Smartthings app just shows open. Somehow I am missing the connection between the zone and the 'thing.'

Summary The dsPIC DSC Acoustic Echo Cancellation (AEC) Library is fully compatible with G.167 standard for Acoustic Echo Cancellation. The software library provides a function to eliminate echo generated in the acoustic path between a speaker and a microphone.

This function is useful for speech and telephony applications in which a speaker and a microphone are located in close proximity to each other, and therefore susceptible to signals propagating from the speaker to the microphone resulting in a perceptible and distracting echo effect at the far end. Applications • Automobile Hands-free Cell Phone Kits • Speaker phones • Intercoms • Teleconferencing Description The Acoustic Echo Cancellation (AEC) Library is written almost entirely in assembly language and is highly optimized to make extensive use of the dsPIC DSC device instruction set and advanced addressing modes. The algorithm avoids data overflow.

The AEC Library provides an EC_init function for initializing the various data structures required by the algorithm and an EC_apply function to remove the echo component from a 10 ms block of sampled 16-bit speech data. You can easily call both functions through a well-documented Application Programmer’s Interface.

The Acoustic Echo Cancellation algorithm is primarily a Time Domain algorithm. The received far-end speech samples (typically received across a communication channel, such as a telephone line) are filtered using an adaptive Finite Impulse Response (FIR) filter, and then subtracted from the near-end input speech signal. The coefficients of this filter are adapted using the Normalized Least Mean Square (NLMS) algorithm, such that the filter closely models the acoustic path between the near-end speaker and the near-end microphone (i.e., the path traversed by the echo). A Nonlinear Processor (NLP) algorithm is available to eliminate residual echo.