Further to this post on DIY Smart Home from Scratch, I would appreciate your feedback and recommendations on UK available Zigbee relay modules that can be used with traditional style physical switches for control of dumb and smart lights and other devices per the below use cases. We will have neutral wires available at the switch.
My ideal is set out below but I have yet to find any candidates that fit the bill for the first two use cases. For the first use case there do seem to be dimmer switches which take a monostable switch input and cycle through dimming levels 0%-100%-0% on press and hold which could be a fall back. Your input on alternative regimes that have worked for you would also be most welcome.
Smart Switched Dumb Circuit
Smart Switch: Zigbee 3.0 smart trailing edge dimmer module with 2-way (bistable) physical retractive switches. The switch directly controls current to dumb lights on the circuit as well as controlling other devices via the hub as needed. The direct control element will operate as intended even if the hub is unavailable.
Desired Logical Switch Behaviour:
- Up - If Off > On (Default Brightness Level/Scene for current Mode); If On > Next Brightness Level/Scene for current Mode
- Down - If On > Previous Brightness Level/Scene for current Mode; If Off > Nothing
- Up & Hold - Dim Up
- Down & Hold - Dim Down
- Double Up - If Off > On (Default Scene for current Mode); If On > Default Scene for current Mode
- Double Down - If On > Off; If Off > Nothing
Smart Lighting Remote Control
Smart Remote: Zigbee 3.0 smart 2-way switch module with 2-way (bistable) physical retractive switches, wired in parallel on the circuit so it is powered by, but not controlling, the circuit. The relay controls smart bulbs and other devices via the hub.
Desired Logical Switch Behaviour:
- Up - If Off > On (Default Scene for current Mode); If On > Next Scene
- Down - If Off > On (Last Scene); If On > Previous Scene; If Off > Nothing
- Up & Hold - N/A
- Down & Hold - N/A
- Double Up - If Off > On (Default Scene for current Mode); If On > Default Scene for current Mode
- Double Down - If On > Off; If Off > Nothing
Door Hold Open Release
Smart Switch: Zigbee 3.0 1-Way Relay Module with 1 way (monostable) physical retractive switch in series
Desired Logical Switch Behaviour: Toggle On/Off. If Off, automatically toggle On when door held fully open for X seconds via hub and door sensor
Towel Radiator Switch
Smart Switch: Zigbee 3.0 1-Way Relay Module with 1 way (monostable) physical retractive switch in series
Desired Logical Switch Behaviour: Toggle On/Off. If On, automatic timed or humidity based shut-off via hub
Water Control
Smart Switch: Zigbee 3.0 1-Way Relay Module with 1 way (monostable) physical retractive switch in series with a fail open motorised ball valve with limit switching.
Desired Logical Switch Behaviour: Toggle On/Off (Power on to close valve)