This little unit uses a beam of infrared light to reflect off an object to measure its distance.
Because it uses beam triangulation to calculate distance, it is able to provide consistent and reliable readings which are less sensitive to temperature variation or the object’s reflectivity.
The sensor outputs an analog voltage corresponding to the distance of the object, easily read by an Arduino, PIC, PI, or any other ADC chip.
This temperature humidity sensor uses a capacitive humidity sensor, and a thermistor to measure the surrounding air temperature. The result is available via a digital signal on the data pin. Compared to the DHT11, this sensor is more precise, more accurate and works in a bigger range of temperature/humidity.