First, the module introduces The module is based on the thermistor (resistance increases with the ambient temperature changes) works, a sense of real-time To know the temperature of the surrounding environment changes, we send the data to the Arduino analog IO, then come down as long as we go through Jane Single programming will be able to convert the sensor output data Celsius temperature values and displayed, it is still easy to use, It effectively, thereby widely used in gardening, home alarm systems and other devices. Second, the use And the general temperature sensor is the same, are three-line package, when we use the power cord connected OK signal output Into the end on the line, because the module output is an analog signal, we want to signal output terminal connected to the Arduino analog IO On sampling, so as to correctly read the temperature value; Up to this point generally know how to use it, then we need to know about how it is the next temperature measurement?