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Put a sonoff zigbee temperature and humidity sensor in every room (€11 per sensor, €66 all in)
Ooh, I've been meaning to do temp/humidity monitoring in my flat and those look perfect. The original plan was to roll my own wired solution using a Raspberry Pi and DHT22 sensors but this looks much less faff.
I'm going to order a bunch (plus the bridge) to try them out in various rooms, along with a PIR sensor, door sensor and a switch (not sure why but it might be useful to play with).
I will still need one wired DS18B20 temp sensor connected to an RPi but that's to go on a single radiator pipe so I can keep track of when the heating has been on, plus the RPi can be used to host the data capture and logging/graphing stuff (no prizes for guessing what).
Is there a Zigbee (or wifi) CO2 monitor that plays nicely with this stuff?
Greenbank-
I got two of the pir sensors and love them. I have them set up to control ikea tradfri outlets with lamps plugged into them, one in my living room and one in the nursery, both with identical automations:
When we’re both home they switch the lamp on when motion is detected from 1 hour before sunset to 1 hour after sunrise, and switch them off 10 minutes after last motion is detected.
When home is in away mode however I just have the floor lamps to come on an hour before sunset and switch off at 11pm.
Colm89
Spent this morning beginning to automate my central heating, here’s what I’ve done:
Shelly 1pm replaced the apt wall clock that controlled the oil boiler (~€20 for the relay and €2 for the blanking cover)
Set up a zigbee network with zha/conbee ii (€35 for conbee stick, but this also now controls zigbee outlets and bulbs elsewhere)
Put a sonoff zigbee temperature and humidity sensor in every room (€11 per sensor, €66 all in)
Created a generic thermostat in home assistant linking the boiler relay to the master bedroom sensor (master bedroom is the room of most interest to regulate the temperature in atm as that’s where the baby sleeps)
Set up the following switches/automations in home assistant:
I’m waiting for a zigbee button to arrive in an ikea order on Monday that I’ll stick on top of the blanking plate where the apt timer was that will physically control the boost. I need to also set up an away mode to flick off the thermostat when we’re both away.
From a central heating perspective the next step is to pick up some zigbee trvs for each radiator to make it as close to multi zone heating as I can. I’ll probably pick up a single moes one to test and if all goes well I’ll order 9 more.
Its less urgent as the central heating is heating our water, but before summer comes I’ll wire a shelly 1 to a beefier relay/contactor to control the immersion.