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Need support for alarm board to trigger a relay based on motion.

Ryan Blakeslee shared this question 4 years ago

I've got the 8 port H.264 card and it does have the header for the GPIO, but I need to know if there is any support at all to trigger a relay that will set off a buzzer we have. Again, this was something supported on our avermedia system, and it's vital to our setup. Is there any equivalent work around to get a buzzer to go off or even if its through the Audio port of the sound card, to play a sound or anything when motion is detected on a camera.

Comments (9)

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There is a pending feature for the client to play a sound when motion is detected, but this has not been added yet.

At this time we do not have plans to put a GPIO card in production, as we do not have enough customers requiring the GPIO card to justify the production costs and development time.

Thanks

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Curtis Hall wrote:

There is a pending feature for the client to play a sound when motion is detected, but this has not been added yet.

At this time we do not have plans to put a GPIO card in production, as we do not have enough customers requiring the GPIO card to justify the production costs and development time.

Thanks

I'm disappointed to hear this. When we bought the 16 port cards during the beta we were told the support for GPIO was not in there yet but was coming. I've been quietly waiting because I knew there was still a ticket open targeting the 2.1 release ( http://improve.bluecherrydvr.com/issues/286 ).

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Unfortunately this is complete deal breaker for me, since any security system should have the ability to close a simple relay to trip an alarm, it doesn't really have to be more complicated than that, at least at first.

Right now, that places this software in less of a security system, and more into "a bunch of camcorders all recording with a poor interface for finding specific events that occurred" I was expecting more after having participated in the beta...

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I'm curious if the hardware is there already. The connectors are on the board. Is the board that was going to be made offering anything other than relays and protection circuits? Is it possible to "talk" to the GPIO lines outside of the bc software?

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What's the status on this? A surveillance system needs to have, at minimum, some dry contact inputs and outputs to trigger both recording events and/or some external alarm device. I've got a Bluecherry box with multiple capture cards and they all have the I/O built into the cards, but there doesn't seem to be any way to use it....?

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I don't anticipate adding support for these interfaces anytime in the near future. Only a small portion of our customers ask for this feature. In order for us to add support there would be a significant hardware development cost for us to produce the sensor / relay board along with driver enhancements.

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Curtis Hall wrote:

I don't anticipate adding support for these interfaces anytime in the near future. Only a small portion of our customers ask for this feature. In order for us to add support there would be a significant hardware development cost for us to produce the sensor / relay board along with driver enhancements.
May I suggest starting up a kickstarter project? Could there be a way to send some kind of motion signals to, say, a Raspberry Pi and then that could be used to trigger a relay / sensors. There's a whole bunch of example scripts online for the Pi and using it's GPIO pins. Would that be a cheaper way of doing it since the development for the Pi is already there and plenty of hardware (relay boards, etc) for the Pi in place. Just need to send a trigger of some sort, right?

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If you're not willing to do the development why not open that up to the community. I'm sure someone is willing to build the necessary hardware software to make the interface. Just add your own disclaimer that its not officially endorsed and let people get on with it.

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Like I said in my previous comment 2 years ago, all that would be needed is an alerting feature besides email. Motion triggering an event. You could then use that event to do whatever you want. For instance in Bash (Linux) one could write a bash script when a variable state changes to trigger another event or action. As it's open source you could leave that portion open to the community, like the commentor above me said.

I'd happily write something and post it on github that people could use. You just need to provide an event or state that can be used to capture the event. It doesn't have to cost anything! Just a code change to your alerting.

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