Sidehistorik
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At some point, ZenseHome added MQTT support for their system, so I created this:
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Pressing the Switch send a signal over 220V cable to the ZenseHome box, that post a message on a MQTT Tpoic, that Home Assistent picks up, and sends a toogle to the Hue Brige, that informs the Lamp over ZigBee..
Worked ok 
Later I introduced Node-RED: