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Add Reliable Barometric Pressure Sensor BMP085 Breakout Sensing to Your Next Build
This is a simple breakout board for the BMP085 high-precision, low-power barometric pressure sensor from DFRobot. The BMP085 offers a measuring range of 300 to 1100 hPa with an absolute accuracy of down to 0.03 hPa. It's based on piezo-resistive technology for EMC robustness, high accuracy and linearity as well as long term stability. This sensor supports a voltage supply between 1.8 and 3.6VDC. It is designed to be connected directly to a micro-controller via the I2C bus
This breadboard-friendly board breaks out all pins of the BMP085 to a 6-pin 0.1" pitch header. The analog and digital supplies (VDDD and VDDA) of the BMP085 are tied together and broken out to a single pin. We've also put two 4.7k pull-up resistors on the I2C lines.
Important: Use the official DFRobot links below for wiring, sample code, downloads, and the latest setup notes for this SKU.
Why you'll love it
- Digital two wire (I2C) interface
- Wide barometric pressure range
- Flexible supply voltage range
- Ultra-low power consumption
- Low noise measurement
- Fully calibrated
What you can build
This part fits monitoring, measurement, logging, alarms, and automation builds. It works well in Arduino, ESP32, and Raspberry Pi style projects where you need reliable real-world data from the barometric pressure sensor bmp085 breakout.
Starter bundles
Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus sensor cables, headers, or a matching expansion shield for faster setup.
Recommended add-ons
Useful add-ons include displays, data logging modules, waterproof enclosures, and matching Gravity cables or sensor shields.
Technical specifications
| Product | Barometric Pressure Sensor BMP085 Breakout |
|---|---|
| SKU | SEN0120 |
| Brand | DFRobot |
| Interface | I2C, Analog, Digital |
| Dimensions | 16 x 16 mm (0.63 x 0.63") |
| Measuring range | o |
Pinout & usage notes
Use the correct SDA and SCL pins on your controller and make sure the bus voltage is compatible. For analog readings, use a stable reference and keep wiring short when possible for cleaner signals.
DFRobot resources
Official product page: View on DFRobot
Wiki / documentation: Open DFRobot wiki
BMP085 Datasheet · Library · Example Arduino Sketch
What’s in the box
1 × Barometric Pressure Sensor BMP085 Breakout
Frequently Asked Questions
Can I use this for logging or monitoring projects? Yes. It is a good fit for data collection, automation, and alert-based builds when paired with a supported controller.
Does it work with other boards too? Often yes, as long as voltage, interface, and pin mapping match. ESP32 and Raspberry Pi users should still check the official docs first.
Where can I find wiring and examples? Use the official DFRobot product page and wiki links below for guides, downloads, and code examples.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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