VCC is 5V. The output high level 3.3V can be powered by 5v. There is a voltage conversion chip inside, but only one power supply mode can be selected for 5v and 3.3v. If you use 3.3v, you can no longer use 5v. If you have 5v, you can no longer use it. 3.3v

BMP180 is a pressure sensor with high precision, small size and low power consumption, which can be used in mobile devices

Its performance is excellent, the absolute accuracy can reach as low as 0.03hPa, and the electrode consumption is low, only 3μA

BMP180 uses a powerful 8-pin ceramic lead-free chip carrier (LCC) ultra-thin package, which can be directly connected to various microprocessors through the I2C bus

Main feature:

Pressure range: 300~1100hPa (9000m~-500m above sea level)

Supply voltage: 1.8V ~ 3.6V (VDDA), 1.62V ~ 3.6V (VDDD)

LCC8 package: lead-free ceramic carrier package (LCC)

Size: 3.6mmx3.8x0.93mm

Low power consumption: 5μA, in standard mode

High precision: in low power consumption, the resolution is 0.06hPa (0.5m)

In high linearity mode, the resolution is 0.03hPa (0.25m)

With temperature output

I2C interface

Temperature Compensation

Lead-free, RoHS compliant

MSL 1 response time: 7.5ms

Standby current: 0.1μA

No external clock circuit required

Typical application:

GPS accurate navigation (dead reckoning, upper and lower bridge detection, etc.)

Indoor and outdoor navigation

Leisure, sports and medical health monitoring

Weather forecast

Vertical speed indication (rising/sinking speed)

Fan power control