Door - Digital Input

DIY
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1

Hi, I really appreciate if someone can help me with this question. I’m currently working with a Cerbo GX, it has 4 Digital Input Sensors which I plan to use to monitor the doors of a business. The problem is that I only have 4 Digital Inputs, but I need 10, the business has about 10 doors between the entrances and the office doors. I was looking in the catalog of devices for something that could give me the solution, but I couldn’t find anything.

What options do I have to add additional Digital Inputs to my Cerbo GX?

thanks for your time and appreciate your help.

2

With more digital inputs than is physically there, you may need to look at virtual devices (still in beta) or node red

You can add a second cerbo GX and with a can connection to extend tank sensors, but i cant say for sure if it works with digital inputs

There are others who have mods.

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Thanks for your help.

4

Another option would be to consider using z-wave or matter door sensors and home assistant… that would then allow you to have wireless connection between each door and the home assistant hub.
ex: TUO Contact Sensor with Matter Support – arre

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It’s a very good idea, Thanks. but then I would have two systems in parallel, the Cerbo GX and the Home Assistant Hub. Is it possible to integrate a door sensor model via Bluetooth with the Cerbo GX?

6

Not yet… Bluetooth has limited use cases for now.

The Cerbo isn’t really designed as a security monitoring device. There are some integrations between Victron and Home Assistant. (bringing Victron data into HA). Home Assistant integration with Victron - VictronEnergy

HA is designed for home (and boat!) monitoring and control of lights, etc…

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Thanks, you have been very helpful

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If it’s door the type of sensors with the old fashioned reed relays inside then you can parallel them ?

9

That depends. Some reed switches are NC (normally closed), others are NO (normally open).

If you’re using traditional (wired) reed switches, you can monitor them with the Cerbo digital inputs. You’ll likely need to do some Node-Red programming to setup a notification system, or an limit alarm functionality based on the digital input may be possible via VRM.

I don’t know though how you would “arm” or “disarm” the system via Cerbo. It should be possible to build a custom NodeRed dashboard with a button to do this… overall, pretty clumsy. Home assistant does all this natively.

Home assistant step by step guide to setup an alarm system is here: Manual Alarm control panel - Home Assistant (hope it’s ok to post external links??)