The tag 'sensors soil_moisture_sensor smart_irrigation_system iot' is only used once. This is the project:
Smart irrigation system
Smart irrigation system connecting to internet BY ESP8266.
Component
Type
Keyes Relay
1 channel relay
Sensor
Soil Moisture Sensor
WiFi Module
ESP8266 WiFi Module
Arduino UNO (Rev3)
wires
Jumper wires
Bread board