Backstory: When I got home from Christmas holiday travels, I found the whole first floor of my house had flooded. It was dry, but obvious water marks told the story of terrible events in recent days.pic.twitter.com/3msjavG9sN
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Note the water on the floor in the bottom right corner of the previous pic. That's not spillage from the bucket I was testing the sensor on, that's an active leak into my lab. I also grabbed a Gentex horn/strobe and some water-sensing cables to place along walls in trouble spotspic.twitter.com/XvwvhWa5eU
The only remaining step was to code up a nice touchscreen HMI to crunch the data. It collects water level measurements at 1 Hz, does some averaging to reduce noise, then calculates tank volume and flow rate in L/hr.pic.twitter.com/QH79c5Ka8l
I plan to also track pump duty cycle over the long term (seconds on vs off over the past hour or something). Current/planned alarm conditions include water on the floor, tank level above the float, and flow rate approaching the pump's capacity.
Then the only remaining piece will be adding logging so I can collect trends over time and test effectiveness of outdoor drainage upgrades, and installing a 24V UPS so that I still get alarms even if the power goes out.
Aside: that's a serious oscilloscope!
Which one, the HDO9204 on the bench or the WaveRunner 8104 on the rack? Assuming you're not talking about my soon-to-be-retired WaveSurfer 3034 off the left edge of the frame. The HDO is my newest acquisition and is replacing the WaveSurfer as soon as the rack kit comes in.
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