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Home / Computer Hardware, Monitors & Peripherals / BMP180 280 BME280 388AHT20 High-Precision Atmospheric Pressure Sensor Module Altimeter

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Interface I2C / SPI
Operating Voltage 3.3V - 5V DC
Pressure Range 300 - 1100 hPa
Temperature Accuracy ±1.0°C
Communication Protocol I2C (0x76 or 0x77)
Chip Options BMP180, BMP280, BME280, AHT20
PCB Size 13mm x 19mm x 2mm
Pressure Resolution 0.18 Pa
Standby Current 0.1 μA
Mounting Type Through Hole / PCB

5 reviews

A

Anonymous

Apr 08, 2026

Rating: 5/5

Accurate altitude readings

Using this for a drone altimeter project. The pressure sensitivity is great and provides stable altitude data even with minor pressure changes.

A

Anonymous

Apr 04, 2026

Rating: 5/5

Perfect for Arduino Weather Station

I used the BMP280 variant for my home weather station project. The readings are consistent and the library support for Arduino is excellent. Highly recommend for hobbyists.

A

Anonymous

Mar 30, 2026

Rating: 4/5

Good value but check the variant

Works well overall. Just make sure you know which chip you are ordering as the pinout can vary slightly between BMP and BME models. Documentation was adequate.

A

Anonymous

Mar 23, 2026

Rating: 3/5

Headers not included

The sensor works fine but I was disappointed that pin headers were not included. Had to solder my own which added extra work. Functionality is good though.

A

Anonymous

Feb 24, 2026

Rating: 5/5

Compact and reliable

Very small footprint which fits perfectly into my custom enclosure. Fast shipping and the module arrived well protected.

5 FAQ

Q: Is this module compatible with Raspberry Pi 4?

A: Yes, this module is fully compatible with Raspberry Pi 4 using the I2C interface. You will need to enable I2C in the Raspberry Pi configuration settings.

Q: How do I calibrate the sensor for sea level pressure?

A: You can adjust the sea level pressure value in your code based on your local weather data to improve altitude accuracy. The sensor itself comes factory calibrated.

Q: What library do you recommend for ESP32?

A: We recommend using the Adafruit BMP280 library or the Bosch BME280 library, both are available in the Arduino IDE library manager and support ESP32.

Q: Does the BMP180 version measure humidity?

A: No, the BMP180 and BMP280 models measure pressure and temperature only. If you need humidity sensing, please select the BME280 variant.

Q: Can I power this with 5V directly?

A: Yes, the module includes a voltage regulator and level shifter, so it can safely be powered by 5V logic boards like Arduino Uno.

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