Does anyone know of a project that can detect the buzzer sound from a washing machine and dryer a...

[G+_Raul Thomas]

Does anyone know of a project that can detect the buzzer sound from a washing machine and dryer and then send a text message to indicate that its done. Preferably using a rasberry pi. Thanks.

[G+_Steve Labbe]

I did a quick search and found this, hope it helps you with your project

 

https://blog.mornati.net/raspberrypi-motion-and-noise-detection/

[G+_Raul Thomas]

Thanks Steve. I'll keep it in mind.

[G+_Steve Labbe]

In the comments section, someone had converted the code to python it that suits you better

[G+_Ben Reese]

I think similar solutions have been discussed here in the past. Some ideas...

 

Load sensors on the power lines (measure amperage used)

Gyroscope/motion sensors attached to the side (may give false positives on the washer between cycles)

Hacking in and connecting to lights or other indicators (even the buzzer might work)

[G+_Raul Thomas]

The solution cannot hack into any part of the machine. Thanks.

[G+_Ben Reese]

Raul Thomas well now your just taking all the fun out of it ?

[G+_John Mink]

I have a vague memory of Padre saying he used accelometers

[G+_John Mink]

You could do a load sensor by making a pass-through on the outlet. Intsead of washer --> wall you have washer --> sensor --> wall. Pick up one of those sensors, read the voltage across it.

 

Motion can be done with a device on top of the washer (non-invasive)

 

You might be able to do photo diodes to detect LEDs indicating "done", but you'd need to find a way to filter out other light.?

[G+_Eddie Foy]

simple: Wife/kids

[G+_Steve Labbe]

and I guess you could buy them raspberry pies while they stare at the machines :)

[G+_David Wiggins]

I thought there were audio sensors for pi/Arduino? Or a sensor for current on the buzzer mechanism in the dryer itself. I had one where the selector was broken so we disconnected the power to the buzzer.

[G+_Eddie Foy]

David Wiggins  A simple bandpass filter would work.  Tune it to the buzzer freq to avoid false triggers

[G+_David Wiggins]

Very cool.

[G+_Cody Kochmann]

if you really wanted to push the cool button, you could use tensorflow and teach it what a buzzer sounds like :) its on the pi now