Adafruit has a number of options for temperature and humidity sensors. Most of them use I2C to communicate (the exception is the DHT22, which uses a special one-wire data protocol). Some of these sensors are supposed to be more accurate than others, which may be true, and some are supposed to be faster at data acquisition than others, which is definitely true. I decided to compare sensors using a Raspberry Pi 3 for sensor control and data acquisition and a fairly powerful laptop running R to do the analysis.
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