OK, it has been hours since I stirred the pot.
I was looking at another thread and once again was wishing that the BMV-712 had an extra relay output. Got me to thinking. The BMV-712 communicates using Victron.Direct and the communication protocol for Victron.Direct is pretty simple.
How about a dongle that plugs into a BMV-712 and provides multiple status outputs as relay contact closures.
I haven't looked into the configuration of the BMV-712 yet, but I was thinking it would be neat to be able to have a number of different outputs. I realize this could be done using a CerboGX, but bear with me here.
Outputs:
I am thinking about something like this combined with a relay or optocoupler PCB. $5 and the size of your thumbnail.
Use something like this to drive relays.
I was looking at another thread and once again was wishing that the BMV-712 had an extra relay output. Got me to thinking. The BMV-712 communicates using Victron.Direct and the communication protocol for Victron.Direct is pretty simple.
VE.Direct Protocol FAQ [Victron Energy]
www.victronenergy.com
How about a dongle that plugs into a BMV-712 and provides multiple status outputs as relay contact closures.
I haven't looked into the configuration of the BMV-712 yet, but I was thinking it would be neat to be able to have a number of different outputs. I realize this could be done using a CerboGX, but bear with me here.
Outputs:
- High battery SOC or low temperature disconnect to turn off your charge sources (like an Orion-TR DC-DC charger, a Multiplus)
- Low battery SOC or high battery temperature disconnect to turn off your loads (like dumb DC loads or a Multiplus or a non-Victron Inverter that has a switch input)
- Low battery SOC Alarm to let you know that your battery is getting low (so you can turn off the AC before the lights go out).
- Long Term Storage Output. Use this to switch an outlet off once the battery has discharged to say 50% SOC. This way you can easily get your battery to the appropriate SOC for long term storage.
I am thinking about something like this combined with a relay or optocoupler PCB. $5 and the size of your thumbnail.
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Use something like this to drive relays.
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