The BMP180 sensor is Bosch's accurate and cost-effective sensor for measuring barometric pressure and temperature. Since the barometric pressure changes depending on the altitude, it can also be used as an altimeter! The sensor is soldered to a PCB with a 3.3V regulator, an I2C level shifter, and an I2C pin pull-up resistor. It is exactly the same as BMP085 in terms of firmware / software.
Features:
- Vin: 3 to 5VDC
- Logic: 3 to 5V compliant
- Pressure sensing range: 300-1100 hPa (9000m to -500m above sea level)
- Up to 0.03hPa / 0.25m resolution
- -40 to +85°C operational range, +-2°C temperature accuracy
- This board/chip uses I2C 7-bit address 0x77.