watering-plant

• Use a capacitance soil humididity sensor
• Data is transmited to MQTT server using ESP8266 board
• An ESP8266-01 with NeoPixel subscrbes to the topic and display the color for humidity monitor humidity content in soil by a capacitance sensor, a subscribe with an LED indicator

  Update:

• Chirp version is fun to play with but harder to put the sensor into I2C mode. I am looking to use the Analog version.

Wiring

• Wiring diagram

• Reading in dry and wet soil

Tutorials

• A write-up with more information is on b-io.info