DHT-11 and DHT-22 need some time - 2 seconds IIRC - between samples (see datasheet)
opt. check my lib - Arduino Playground - DHT11Lib - Arduino Playground - DHTLib -
DHT-11 and DHT-22 need some time - 2 seconds IIRC - between samples (see datasheet)
opt. check my lib - Arduino Playground - DHT11Lib - Arduino Playground - DHTLib -