@Kevindarrah
  @Kevindarrah
Kevin Darrah | Arduino Washer/Dryer Alarm System - Tutorial + Code @Kevindarrah | Uploaded January 2017 | Updated October 2024, 23 hours ago.
Pretty cool little project with a lot of good stuff in it that you can easily apply to other applications. I've got a cheap washer & dryer that didn't come with a 'cycle complete' buzzer/alarm, so I'm always forgetting my clothes in there... thus ending up with super wrinkled clothes all the time. Yea, I know, you can easily just not forget you're doing laundry or set a timer on your phone, but why not strap some sensors and an Arduino to your appliances instead? I ended up using a CDS light sensor - sometimes called LDR's, photo resistors, etc... here's one: digikey.com/product-detail/en/luna-optoelectronics/NSL-5152/NSL-5152-ND/5423680

and that is used to detect the 'cycle complete' light is on for the washer. The dryer was a bit more complicated, so I decided to detect the vibration of the dryer to know whether it's on or off. Here's the piezo I used: digikey.com/products/en?keywords=AB2726b

And the opamp I used is here: digikey.com/products/en?keywords=MCP6242-E%2FP-ND

Make sure you check out the wiki to - each board has a dedicated page: kevindarrah.com/wiki/index.php?title=Projects:

And the low power video: youtube.com/watch?v=urLSDi7SD8M

THE CODE IS HERE: kevindarrah.com/download/arduino_code/WasherDryerMonitor.ino

Check out my Tindie store (trigBoard is available) tindie.com/stores/kdcircuits

Thanks to all the Patrons for dropping a few bucks in the tip jar to help make these videos happen!
patreon.com/kdarrah

Twitter: twitter.com/KDcircuits

For inquiries or design services:
kdcircuits.com
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Arduino Washer/Dryer Alarm System - Tutorial + Code @Kevindarrah

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