A simple program to take readings for a moisture sensor on the PiStorms-GRX

00-MoistureCSV.py

# import some stuff we'll need
from GroveDevices import Grove_Moisture_Sensor
from PiStorms_GRX import PiStorms_GRX
import numpy as np
import time

# create a sensor (on port BAA1), the PiStorms object, and an empty list to hold the data
sensor = Grove_Moisture_Sensor("BAA1")
psm = PiStorms_GRX()
data = []

# show a label on the screen
psm.screen.termPrintln("Current moisture measurement:")
psm.screen.termPrint("[none]")

# repeat this until you press the GO button at least once (not 0 times)
while psm.getKeyPressCount() == 0:
    # take a reading, put it on screen, add it to the data array, and wait 10 seconds before taking another measurement
    reading = sensor.moistureLevel()
    psm.screen.termReplaceLastLine(reading)
    data.append(reading)
    time.sleep(10)

# open a file called moisture.csv in your Documents folder, write each data point with a comma after it
with open("/home/pi/Documents/moisture.csv", "w+") as file:
    for measurement in data:
        file.write(str(measurement) + ",")