Simple script to poll moisture status for a https://thepihut.com/products/soil-moisture-sensor - suitable for Icinga monitoring

check-moisture.py

#!/usr/bin/python3
import RPi.GPIO as GPIO
import time

# Disable warnings
GPIO.setwarnings(False)

# Define channels
switch = 18
sensor = 17

# Set our GPIO numbering to BCM
GPIO.setmode(GPIO.BCM)

# Set inputs and outputs
GPIO.setup(switch, GPIO.OUT)
GPIO.setup(sensor, GPIO.IN)

# Activate sensor
GPIO.output(switch, GPIO.HIGH)

time.sleep(0.1)

if GPIO.input(sensor) == 0:
  print("OK")
  GPIO.output(switch, GPIO.LOW)
  exit(0)
else:
  print("MOISTURIZE ME")
  GPIO.output(switch, GPIO.LOW)
  exit(1)