This DHT11 Temprature and Humidity Sensor features a temprature & humidity sensor complex with a calibrated digital signal out. By using the exclusive digital-signal-acquisition technique, this sensor ensures high reliability and excellent long-term stability. This module is consist of a resistive-type humidity measurement component and an NTC component, with a high performance microcontroller, it offers excellent quality fast response, anti-interface ability and cost-effectiveness. This module uses the ONE Wire protocol to communicate with Arduino mainboard. You can download the Starter Kit Guidebook experiment 10 - Read the Humidity and Temperature Sensor and related source code to learn how to use this module.