Analog Capacitive Soil Moisture Sensor

The sensor has a built-in voltage regulator chip that supports a 3.3-volt working environment, which means it works even on a 3.3V control board. A miniature PC such as the Raspberry Pi only needs an external ADC (analog to digital signal) conversion module to work.
With an external screen and a motherboard, you can talk to your plants! See if it is thirsty and you don’t need more water to moisten.

Features