Though i think i know the answer already i thought i would ask. Would the Grove Water Level sensor also work in soil? Superficially it uses similar sensing to the Capacitive Soil sensor.
What i would really like to see is a multi-depth i2c based version of the Capacitive Soil Sensor. While the existing soil sensor is nice it only really reads the top layer of soil in very deep containers (1ft+ of soil). It would be cool to have a long (or better yet multiple length options) soil sensor, with multiple (2-4) independent sensing zones. And preferably i2c to make more efficient use of ports.