Raspberry Pi で Grove の 温湿度モジュールを使う

次のページを参考にしました。
Grove - Temperature&Humidity Sensor Pro(DHT22)

実行時の様子

必要なライブラリーのインストール

curl -sL https://github.com/Seeed-Studio/grove.py/raw/master/install.sh | sudo bash -s -

プログラム

dht_simpleread.py

#! /usr/bin/python3
import time
import seeed_dht

sensor = seeed_dht.DHT("22", 16)

while True:
    humi, temp = sensor.read()
    if not humi is None:
        print('DHT{0}, humidity {1:.1f}%, temperature {2:.1f}*'.format(s
ensor.dht_type, humi, temp))
    else:
        print('DHT{0}, humidity & temperature: {1}'.format(sensor.dht_ty
pe, temp))
    time.sleep(2)
#

実行結果

$ ./dht_simpleread.py 
DHT22, humidity 68.3%, temperature 26.6*
DHT22, humidity 68.3%, temperature 26.6*
DHT22, humidity 70.1%, temperature 26.6*
DHT22, humidity 83.5%, temperature 26.8*
DHT22, humidity 85.0%, temperature 26.8*
DHT22, humidity 89.1%, temperature 27.0*
DHT22, humidity 88.6%, temperature 27.1*
DHT22, humidity 77.7%, temperature 27.2*
DHT22, humidity 76.6%, temperature 27.3*