Simple test

Ensure your device works with this simple test.

examples/ccs811_simpletest.py
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import time
import board
import busio
import adafruit_ccs811

i2c = busio.I2C(board.SCL, board.SDA)
ccs811 = adafruit_ccs811.CCS811(i2c)

# Wait for the sensor to be ready
while not ccs811.data_ready:
    pass

while True:
    print("CO2: {} PPM, TVOC: {} PPB"
          .format(ccs811.eco2, ccs811.tvoc))
    time.sleep(0.5)