Hi Everyone,
I have recently purchased the HTZSafe Wireless driveway beam sensor.
The alarm base station has outputs for Common, Normally Closed NC and Normally Open NO with these triggering each time the beam is broken and an alarm is sent to the base station.
I am wanting to connect a Shelly Plus 1 to the alarm base so that I can get notification in Home Assistant when ever the driveway beam sensors are broken, however I have tried numerous combinations in the Shelly (Both wire connections and Shelly Config) and I can not get the Shelly relay to turn on when the NO circuit is activated by the HTZSafe alarm.
Has anyone had any luck in connecting the HTZSafe driveway beam sensor to a Shelly? Any assistance or guidance would be appreciated.
Can you sketch or describe what you tried?
Those appear to be dry contacts, so if the shelly is a battery one that will accept 14v DC, then a simple circuit should be available. I would not use a mains powered relay as there is risk of shock or shorting to ground if you do.
I am using the Shelly 1 plus powered via 12V DC - Picture of Shelly below.
I have tried connecting the NO from the HTZSafe alarm to the I - Input relay terminal on the Shelly and the COM from the HTZSafe to the O - Relay output terminal on the Shelly.
Also, I tried connecting the NO from the HTZSafe alarm to the SW - Switch input terminal on the Shelly 1.
I read on this forum that someone has got this working by connecting to the sensor input terminal and the COM terminal on a ZEN17 to get this working, however I am not using a ZEN17.
I and O on the shelly are the outputs of the shelly relay. You probably won’t use them at all. You need the dry contacts on the driveway thing to control the inputs to the shelly and make the shelly turn on and off. When that turns the shelly on, HA will know and that is your sensor.
I’m not an owner of a shelly, so I would feel better if someone that has one of these responds, but that is how generally you need to use this.