Color data collector for ev3

color_data.py

#!/usr/bin/python3

from ev3dev.ev3 import *
import csv
import time


cl = ColorSensor()
cl.mode='RGB-RAW'

with open(filename, 'w') as logfile:
	fieldnames = ['red', 'green', 'blue']
	logwriter = csv.DictWriter(logfile, fieldnames=fieldnames)

	logwriter.writeheader()

	while True:
		red = cl.value(0)
		green = cl.value(1)
		blue = cl.value(2)

		logwriter.writerow({
		'red' : red,
		'green' : green,
		'blue' : blue
		})		

		time.sleep(.1)