Need rock-solid environmental data for your next build? The Bosch Sensortec BMP180 remains a maker favourite thanks to its accuracy, ultra-low power draw and dead-simple I²C interface. Housed on a compact 3.3 V-ready breakout, this module lets you read barometric pressure from 300 hPa to 1100 hPa (that’s roughly -500 m to +9 000 m above sea level) with a typical absolute accuracy of ±0.12 hPa and a resolution of just 0.01 hPa. For altitude-sensitive applications, that translates to about ±1 m accuracy and 0.1 m resolution—ideal for UAV flight controllers, wearable altimeters, smart helmet instrumentation or simply logging outdoor hikes.
On-board ADC compensation handles temperature drift automatically while exposing raw temperature data (-40 °C to +85 °C) for your own algorithms. No analogue fiddling is required: four through-hole pads (VIN, GND, SCL, SDA) give you plug-and-play I²C at either 3.3 V or 5 V logic levels, so the BMP180 slips seamlessly into Arduino UNO/Nano, ESP32, ESP8266, STM32, Raspberry Pi and even micro:bit projects. Typical current consumption rests below 5 µA in standby and ~ 12 µA during measurement, ensuring week-long battery life in remote data loggers.
The breakout ships with unsoldered 4-pin male headers so you can decide between breadboard development or right-angle installation. Add a pair of M2 standoffs and you’ve got a rugged pressure node for indoor HVAC monitoring; hot-glue it to a quad-copter frame and you’ve got real-time altitude hold. Because Bosch provides a mature calibration profile baked into the silicon, open-source libraries (Adafruit BMP085/BMP180, SparkFun BMP180, rtimulog on Raspberry Pi, etc.) will output compensated pressure and temperature in minutes.
Wondering how altitude reading actually works? The barometric formula ties pressure to elevation under standard atmosphere assumptions. The BMP180’s 16-bit ultra-low-noise ADC combined with software-selectable oversampling (ultra-low-power to ultra-high-resolution) means you can trade conversion time (4.5 ms → 25 ms) for extra digits when needed. Set up auto-sampling via an interrupt pin (XCLR) and log weather trends, detect storm fronts, or calibrate your indoor CO₂ monitor with accurate absolute pressure.
Whether you’re building a smart terrarium, a student rocket telemetry system, or a hobbyist weather balloon, this module delivers laboratory-grade sensing without breaking the budget—or your PCB real estate. And of course, every order from 01-electronic.com ships fast, is fully tested before dispatch, and is backed by responsive maker-to-maker support
Detailed Technical Specifications:
- Pressure Sensor: BMP180 (Bosch)
- Pressure Range: 300 to 1100 hPa
- Pressure Accuracy: ±0.12 hPa
- Temperature Range: -40°C to +85°C
- Temperature Accuracy: ±0.5°C
- Interface: I2C
- Supply Voltage: 3.3V to 5V
- Current Consumption: 5 µA in standby mode, 650 µA during measurement
- Resolution: 0.01 hPa (pressure), 0.1°C (temperature)
- Dimensions: 20 mm x 15 mm (module size)
- Weight: 3 g
- Compatibility: Arduino, ESP8266, ESP32, Raspberry Pi
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