“Live, from my basement lab”…we’re adding video in this post!
Many of you have been asking about the Wimoto Water. Mainly because I promised it’d be able to sense not just the presence of water (think leak, flood, etc.) but also water *level*.
I’m going to tell you this has been one heck of an engineering challenge. I knew I could make it work in principal, but getting it to a point where output was stable, meaningful, accurate, and able to be squeezed into a tiny Wimoto device was tough.
For the purposes of the demo, we’re moving the sensor up and down — but it works the other way around too if the level of the liquid rises or lowers, it’ll report the change.
What are the applications for this? Anywhere you want to deploy a $50 wireless sensor that runs for a year or more on a single battery, logs data for up to a month, and works with modern mobile devices
– Measure how close the ground water is getting to the top of your sump pit and get an alert on your iPhone or Android device *before* a basement flood
– Know when to top off your pool, pond, or hot tub
– Keep an eye on your beer keg level (or if someone’s been helping themselves)
– Environmental monitoring of waterways
Accuracy is ~1cm over a span of about 1m. The slight lag between moving the sensor and the reading is due to signal conditioning.