Hi. I have a question: I have 6 Sonoff TRVZB valves. Sonoff valves are not very useful because their cooling tolerance (hysteresis) is 1C. I tried to overcome this problem by creating generic thermostats for each valve and setting up automations. I use a Bosch combi boiler as a heater. I created automations in such a way that when the valve knob is turned by someone or when the setting is made from the HA interface and the valve is in the heat position, the switch connected to the combi will open and when the room temperature reaches the set temperature, if one of the other valves is not in the heat position, the combi switch will close. I created an automation in such a way that when the generic thermostat I created is HEAT, the heat setting of the Sonoff valve will be 30C and when it is IDLE, it will be 4C. I saw that turning the combi on and off with a single switch is not very suitable for this system, I created switches that turn the combi on and off for each valve by loading tasmota to the nodemcu and driving the octal relay card. The automations work very well, but since I frequently restart Homeassistant or when there are power cuts, the automations cannot receive the necessary triggering, there are malfunctions in the operation. To overcome this, I want to do the following: When the relevant switch of the valve connected to the combi is ON, the valve should set the temperature to 30C, and when it is OFF, it should set it to 4C. However, I do not want to do this with automation. HA should constantly monitor this situation and never allow the opposite to happen. Even when I turn the valve knob and change the temperature, it should immediately force it to 30C or 4C depending on the situation. In other words, just as when we define a sonoff valve to a better thermostat, the control is completely in the better thermostat, and even if I change the setting from the valve knob, the better thermostat returns to the set value after a while; I want it to be like that. In other words, I want automation without a trigger. The automation should work when the relevant condition is met or when there is a deviation from the relevant condition. HA should constantly monitor the situation. I don’t want to use UPS. In short; I will use the sonoff valve here only for opening and closing the hot water. The other features of the valve will not be used. I thought of doing the automation via switch with my limited knowledge. If you have a different idea, please guide me. I ask for your help. Best regards…
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