![]() Parts requiredįor this example, you need the following parts: We’ll also show you how to estimate altitude. In this section we’ll show you how to read pressure and temperature from the BMP180 barometric sensor using the ESP32. Reading Temperature, Pressure, And Altitude The following table shows how to wire the sensor. So, you need to use the SDA and SCL pins of the ESP32. The BMP180 barometric sensor uses I2C communication protocol. It features a measuring range from 300 to 1100hPa with an accuracy down to 0.02 hPa.īecause temperature affects the pressure, the sensor comes with a temperature sensor to give temperature compensated pressure readings.Īdditionally, because the pressure changes with altitude, you can also estimate the altitude based on the current pressure measurement.
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