I’m looking for ways to turn on my cooker hood, when I turn on the induction cooker plate. The first step would be to detect, when the iduction plate is turned on.
Initially I thought to use SCT-013 split core transformer around the wire and ESP32 based sensor to forward the data to my Home Assistant. Then I figured it would be easier to get a smart switch with power meter option. Now I have discovered that the induction plate is obviously using two phase power and I feel this rules out the smart switch option.
Looking for hardware recommendations, that would help to identify if the induction plate is turned on or off.
Hi there,
I thought it was very simple to measure the power with a shelly and then switch on the extractor hood when the power increases (and off when there is no consumption).
Unfortunately the power pulses _2500W, -7W, 2500W, -7W etc) so that doesn’t work.
Also tried using a sensor to use the average power as an entity but unfortunately that does not work (yet).
I haven’t looked into it very deeply yet, but I’m curious if there are already people who have a suitable (simple) solution.
Best regards,
Jeffrey
Interested in this as well. Have you successfully installed the shelly on your induction hob? I’m relatively new to HASS but if there is a metric of total energy consumption exported you should be able to use a Derivative - Home Assistant to smoothen out the noise
Thought i would share my thoughts on this as i am planning to do exactly this with one of these. https://amzn.to/3R7Uuwk
You mention that the power pulses. So the requirement is
Determine what a pulse is. in this case it seems to be more than 7W
Check if the last pulse (reports more than 7W usage) was more than X Seconds Ago.
If it is then turn off the extractor otherwise turn it on.
I have slightly different use case, as instead of using actual power meter I use sort of estimation. Since I have all other devices covered by either some meters or virtual sensors (Powercalc), I calculate owen consumtion as difference between total consumtion and sum all individual devices. It produces very similar output, with series of contant consumtion and series of spikes (depending on type of heating). So I created another input_number helper that goes on if calculated consumtion goes above 600W for 10 seconds and off if it drops below 400W for 15 seconds (these parameters were adjusted arbitrary based on observations. Then consumtion of power for owen is calculated as all this opther consumption multiplied by 0 or 1 depending on state of helper… Works pretty well for me.