Laundry Accelerometer

Configuration
1

I’m just getting into HA and have some configs setup based on smart plugs for washing machine and dishwashers being done based on template binary sensors with delay_on/off.

There is not enough space behind the tumble dryer to add a power meter (and it’s a nightmare to get out). So I have attached a SmartThings Multi-Sensor which records vibration and I wonder if there’s a way I can create a template sensor to be ‘on’ if vibration detected more than 5 times in the last 5 minutes, and off if vibration detected less than 5 times in the last 5 minutes.

Is this possible???

Thanks

2

If you have SmartThings integrated in HA and you are getting the sensor metrics, the answer is yes.

3

Thanks. Sorry I should have been more specific… How (i.e. what configuration/code) should be added to make this possible, for example here’s what I have for the dishwasher:

  • platform: template
    sensors:
    dishwasher:
    friendly_name: Dishwasher
    delay_off:
    minutes: 1
    delay_on:
    seconds: 30
    value_template: >-
    {{ state_attr(‘switch.dishwasher’, ‘current_power_w’) | float(0) > 0 }}

what I want is the value template to look at the state of: binary_sensor.tumble_dryer_acceleration and set the binary sensor to ‘on’ if the ‘on’ state of the dryer occurred >5 times in the last 5 minutes, and off if it has been <5 times in the last 5 minutes.

4

try this Issues with Xiaomi Vibration Sensor
and
Xiaomi Vibration Sensor Use Cases
and
Washing Machine Monitor using Xiaomi Vibration sensor

5

Thanks. I don;t know why I didn’t come across those when I was searching… possibly as I was looking for laundry/tumble dryer. I’ll try using those examples and tailor for my needs.

6

Good luck!

in my case, it seems even with the xiaomi sensor set to ‘high sensitivity’, it doesn’t pick up the washing machine doing anything so I’m going with a power sensor, and may use the accelerator to detect a door opening (via the accelerator itself, rather than vibration)

7

So I have sort of configured this myself using Node Red.

When the accelerometer detects vibration it goes to a switch which sends the ‘on’ to a timed counter, this counts the number of ‘on’ messages received in the space of 5-minutes. I have it set that if in 5 minutes the count reaches ‘5’ it should pass the 'on; message through. This action notifies me the tumble dryer is on and send the ‘open’ command to a gate.

This gate sits behind the ‘off’ messages and its purpose is to block messages coming through until it is open - this avoids accidental knocks etc and ensures that the tumble dryer is really on (unless of course there have been at least 5 knocks in 5 minutes - which isn’t likely).

Once open the gate accepts the ‘off’ messages from the accelerometer passing these through to a trigger which once activated sends nothing, then waits for more messages, each message received resets the 5-minute counter. If after 5-minutes no message has been received it sends the command to the notify services to let me know the tumble dryer has finished as well as sending a close command back to the gate.

I’ve only been playing in Node Red for about a week and I’m not a programmer/developer, so there is probably a lot of tidying up and maybe unnecessary stuff in there… but it’s a start and it seems to work - so I’m pretty chuffed.

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Here’s the exported code if anyone wants to look and let me know if it can be tidied up/improved

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