Botanicalls provides a method for plants to indicate when they need care. Sensors are placed in the soil with a plant, where it measures the level of moisture. The sensors send a signal to a microcontroller, which determines when moisture is low or when water has been added. Then it can send a wireless signal to an internet-connected computer that can send a prerecorded message to the owner [via text or phone]. These messages might include a thank-you when plants are watered, or a warning if the watering is too much.
~Science Daily
Just what I need, harrassing tweets from my african violet.
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