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Digital barometric pressure sensor

BMP280 Basic Circuit

Build a basic BMP280 circuit with labeled pins, component values and connection guidance.

BMP280 in a circuit

Metal-lid sensor, two supply capacitors and a level-compatible host.

BMP280 physical LGA top view with CSB high, SDO low, two bypass capacitors and I2C pull-ups to 3.3 V.
Matching named nodes are connected; displayed values are illustrative.

Connect it, step by step

Follow the component values and pin connections

Supply

Bypass VDD and VDDIO independently.

Address

Tie CSB high and SDO low for I²C address 0x76.

Acquire

Read calibrated engineering units through the host firmware.

Component view