SKU: SENS-1186
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BMP180 Digital Barometric Pressure Sensor Module - I2C Interface

₹33.00 (Inclusive of all taxes)
Out of Stock

The BMP180 Digital Barometric Pressure Sensor Module is a high-precision, low-power sensor for measuring atmospheric pressure, temperature, and derived altitude. It features an I2C interface for easy integration with microcontrollers like Arduino, Raspberry Pi, ESP32, and STM32, and includes an onboard 3.3V regulator for 5V system compatibility.

Features

  • High-precision piezoresistive sensor with pressure range from 300 to 1100 hPa.
  • Integrated I2C digital interface (up to 3.4 MHz) for simple microcontroller connection.
  • Onboard 3.3V LDO regulator enables safe operation with 5V logic systems.
  • Ultra-low power consumption, with a standby current of just 0.1 µA.
  • Measures barometric pressure, ambient temperature, and calculates altitude.

Out of stock

Description

The BMP180 sensor module is built around Bosch Sensortec’s BMP180 MEMS pressure sensor, an improved successor to the BMP085. It employs advanced piezo-resistive technology to deliver high accuracy, excellent linearity, and long-term stability for barometric pressure and temperature measurements. The module’s integrated signal conditioning and digital output simplify system design.

Designed for robust performance across a wide operating temperature range from -40°C to +80°C, it is suitable for both indoor and outdoor applications. The module includes all necessary support components, such as decoupling capacitors and a pull-up resistor network for the I2C bus, providing a ready-to-use solution for embedded systems and data acquisition projects.

Key Features

  • Bosch BMP180 high-accuracy MEMS barometric pressure sensor core.
  • Wide measurement range: 300 to 1100 hPa (correlates to altitudes from -500m to +9000m).
  • High relative accuracy: ±0.12 hPa (equivalent to approximately ±1 meter altitude resolution).
  • Integrated temperature sensor for calibrated pressure readings.
  • Onboard low-dropout (LDO) voltage regulator supports 3.3V sensor operation from a 5V supply.
  • Ultra-low power operation: 3 µA during measurement, 0.1 µA in standby mode.
  • Fast pressure conversion time of 5 ms in standard resolution mode.
  • Compact and portable PCB module design with standard 0.1" header footprint.

Applications

  • GPS navigation enhancement for dead-reckoning and slope detection in drones and outdoor devices.
  • Weather stations and portable environmental monitoring equipment for atmospheric pressure tracking.
  • Altitude-based activity tracking in sports and fitness wearables.
  • Vertical velocity indication (rise/sink speed) for paragliders, model aircraft, and balloons.
  • Indoor/outdoor navigation systems and IoT devices requiring environmental context.

Technical Specifications

Sensor ModelBMP180
Measurement TypeBarometric Pressure, Temperature, Altitude
Pressure Range300 to 1100 hPa
Pressure Accuracy (Relative)±0.12 hPa
InterfaceI2C (Up to 3.4 MHz)
Supply Voltage (VDC)1.8 to 3.6 (Sensor), 3.3 to 5 (Module via LDO)
Peak Operating Current1000 µA
Standby Current0.1 µA
Operating Temperature-40°C to +80°C
Module Dimensions (L x W)25 mm x 20 mm
Module Weight3 g

Frequently Asked Questions

What is the operating voltage range for the BMP180 sensor module?

The BMP180 sensor IC itself operates from 1.8V to 3.6V. However, this module includes an onboard 3.3V low-dropout (LDO) regulator, allowing you to power it directly from a 5V supply (such as an Arduino's 5V pin) safely. Always connect VCC to the module's input pin, not directly to the sensor pins.

How do I connect and communicate with the BMP180 module using I2C?

Connect the module's VCC and GND pins to your microcontroller's power and ground. Then, connect the SDA (data) and SCL (clock) pins to the corresponding I2C pins on your board (e.g., A4/A5 on Arduino Uno, GPIO2/GPIO3 on Raspberry Pi). The BMP180 has a default I2C address of 0x77. Use standard I2C library functions to read pressure and temperature data registers.

Can this sensor measure altitude, and how accurate is it?

Yes, altitude is derived from the measured barometric pressure using the international barometric formula. The altitude resolution is directly tied to pressure accuracy. With a relative pressure accuracy of ±0.12 hPa, the corresponding altitude resolution is approximately ±1 meter under stable atmospheric conditions. Note that absolute altitude accuracy depends on a known reference SEA-level pressure.

What is the difference between the BMP180 and the older BMP085 sensor?

The BMP180 is the direct successor to the BMP085, offering improved specifications. Key enhancements include lower power consumption (3 µA vs. 5 µA), smaller physical size, lower operating voltage (1.8V vs. 1.9V), and slightly faster conversion times. The BMP180 is functionally compatible and uses the same I2C interface and communication protocol, making it a drop-in replacement for most applications.

Package Includes

  • 1 x BMP180 Digital Barometric Pressure Sensor Module
  • 1 x 5-Pin Male Header Strip

Additional Information

Weight 0.003 kg
Dimensions 2.5 × 2 cm