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Lesson 37: BME280 Humidity, Barometric Pressure, and Ambient Temperature Sensor: Arduino Step-by-Step Course

In this lesson, we learn how to use a BME280 humidity sensor to measure relative humidity, barometric pressure, and ambient temperature.

The BME280 is a humidity sensor especially developed for mobile applications and wearables where size and low power consumption are key design parameters. The unit combines high linearity and high-accuracy sensors and is perfectly feasible for low-current consumption, long-term stability, and high EMC robustness. The humidity sensor offers an extremely fast response time and therefore supports performance requirements for emerging applications such as context awareness and high accuracy over a wide temperature range.

This code has two custom functions that make reading and displaying temperature or humidity very easy.

[ad] humidity sensor