BMP280 Barometric Pressure Sensor Module
Price range: $1.20 through $4.001 pcs
BME/BMP280-3.3V5V Digital Humidity, Barometric Pressure, and Temperature Sensor Triple-in-One Module
| Dimensions | N/A |
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| Brand |
easyelecmodule |
BMP280 Barometric Pressure Sensor Module
The BMP280 Barometric Pressure Sensor Module is a basic module for detecting atmospheric pressure and temperature. Not only is it compact and easy to integrate into various embedded systems, but it also features ultra-low power consumption, making it ideal for scenarios requiring long-term operation with strict energy efficiency requirements. It boasts a wide measurement range, capable of accurately capturing tiny changes in atmospheric pressure while providing reliable temperature and humidity data, offering strong support for multiple fields such as meteorological monitoring, environmental control, and smart homes. The BME280 digital pressure sensor is an upgraded version of the BMP280, but the BMP280 still holds an important position in the market due to its excellent cost performance. It adopts advanced MEMS (Micro-Electro-Mechanical Systems) technology to ensure the accuracy and stability of measured data. Additionally, the BMP280 module supports both I2C and SPI communication protocols, simplifying connections with microcontrollers or other digital systems. Whether you’re a beginner or an experienced engineer, you can easily get started and quickly achieve real-time monitoring of atmospheric pressure, temperature, and humidity.
The working principle of BMP280 Barometric Pressure Sensor Module
The core working principle of the BMP280 Barometric Pressure Sensor Module is based on the piezoresistive effect. When the external atmospheric pressure changes, the piezoresistive element inside the module (a tiny flexible film that bends when pressure changes) undergoes a corresponding change in resistance.
BMP280 Barometric Pressure Sensor Module pins
Pin | Function Description |
VCC | Positive power supply |
GND | Ground terminal |
SCL | I2C/SPI serial clock line |
SDA | I2C serial data line; also serves as 3-wire SPI serial data I/O port, 4-wire SPI serial data input port |
CSB | Chip select pin: High level (default) for I2C communication interface, low level for SPI communication interface |
SDO | I2C address selection bit; also serves as 4-wire SPI serial output port |
Comparison of BMP280 and BME280
Comparison Dimension | BMP280 | BME280 |
Core Functions | Measures only temperature and atmospheric pressure | Integrates temperature, atmospheric pressure, and relative humidity measurement |
Temperature Measurement Range | -40°C ~ +85°C | -40°C ~ +85°C |
Temperature Resolution | 0.01°C | 0.01°C |
Pressure Measurement Range | 300 ~ 1100 hPa | 300 ~ 1100 hPa |
Pressure Resolution | 0.16 Pa | 0.18 Pa |
Humidity Measurement | Not supported | 0 ~ 100% relative humidity, 0.008% resolution |
Package Size | 2.0×2.5×0.95 mm | 2.5×2.5×0.93 mm |
Power Consumption (1Hz sampling rate) | 2.7 μA (more energy-efficient) | 3.6 μA |
Core Application Scenarios | Drone altitude measurement, GPS-assisted positioning, industrial pressure monitoring, indoor navigation | Smart home HVAC, indoor air quality monitoring, agricultural greenhouse monitoring, weather stations |
Cost | Lower, high cost performance | Slightly higher (due to additional humidity detection module) |
Interface Type | Supports I2C and SPI digital interfaces | Supports I2C and SPI digital interfaces |
Physical Identification Feature | Second line of stamp marked “k” | Second line of stamp marked “u” |
Practical Notes | Stable pressure data, small temperature drift, suitable for relative altitude measurement | Humidity sensor is prone to dust contamination; install in a clean and ventilated environment |
BMP280 Datasheet and BME280 Datasheet
Here are the datasheets for the BMP280 and BME280 for your reference.
Shipping Cost
We only ship to the United States. Shipping costs are calculated based on the total order amount.
Shipping Method And Delivery Time
All orders will be processed and shipped within 72 hours of placing the order (excluding weekends and holidays). They will ship from Shenzhen, China, primarily via 4PX logistics. Depending on the destination and logistics conditions, other carriers such as DHL, FedEx, UPS, USPS, etc., may also handle the delivery. Estimated shipping time is 7-12 business days, with actual delivery occurring in 10-17 business days, depending on logistics conditions.
Payment:
We accept Visa, Master card, Maestro, American Express, JCB, Dinner's Club, Discover, Paypal, Apple Pay, Google Pay .
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