BMP180 - Barometric Pressure Sensor

The BMP180 is a digital barometric pressure sensor, designed for low-power, high-precision applications. It measures pressure (300-1100 hPa) and temperature (-40°C to 85°C) with I²C interface, offering ±0.12 hPa accuracy in ultra-high resolution mode. Housed in a compact LGA package, it consumes minimal power, making it ideal for weather forecasting, altitude measurement, and portable devices, with a 1.8V-3.6V supply range.

BMP180 - Barometric Pressure Sensor module
Fig.: BMP180 - Barometric Pressure Sensor module

Technical Specifications

Pressure Range 300 to 1100 hPa
Temperature Range -40°C to 85°C
Supply Voltage 1.8V to 3.6V
Interface I²C
Pressure Accuracy ±0.12 hPa (ultra-high resolution)
Temperature Accuracy ±1°C
Resolution (Pressure) 0.01 hPa
Resolution (Temperature) 0.1°C
Power Consumption 3 µA (low power mode, 1 Hz)
Sampling Rate Up to 128 Hz
Operating Temperature -40°C to 85°C

📄 BMP180 datasheet (672 kB)

Connections

Pin Description Arduino Uno
VCC Power Supply 3V3
GND Ground GND
SCL (CL) I²C clock A5
SDA (DA) I²C data A4
3.3 Power Supply 3V3
Last edited by Christian Grieger on 2025-05-10