Here is a tested Arduino project that uses 3 sensor probes as water level indicator with 3 leds and one LCD display + a simple controller that turns on a motor when the water has reached the desired ...

Keeping a tree watered is the best way to ensure a long life, but it can be difficult to see the water level sometimes, which is why blogger Eric Ayars created a reminder system with an Arduino. Using ...

David Priest is an award-winning writer and editor who formerly covered home security for CNET. $50 is too much for a basic water and temperature sensor. And since both of those functions have major ...